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rsUNIVERSAL BLOWOUT PREVENTERSInstruction Manual 8520

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XUniversal Blowout Preventers

Universal Blowout PreventersGeneral Description ..................................................... 3Use ............................................................................... 4Construction ................................................................ 4Operation ..................................................................... 7Maintenance .............................................................. 10

Complete Disassembly ......................................... 10Complete Assembly .............................................. 10

Hydarulic Hand Pump and Repair Kit ............... 13 – 14Specifications and Replacement Parts .............. 15 – 22

The designs and specifications for the tools described in this

instruction manual were in effect at the time this manual was

approved for printing. National Oilwell, whose policy is one

of continuous improvement, reserves the right to discontinue

models at any time, or to change designs and specifications

without notice or without incurring obligation.

Eighteenth Printing, August 2003

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Bowen Single Universal Blowout Preventer

General DescriptionBowen Universal Blowout Preventersgive positive protection against blowoutswhen operating with wire line or smalltubing in well service or similar work.These units are lightweight in compari-son with other similar preventers, yet theyare able to withstand high well pressure.

All standard models are for service thatinvolves hydrogen sulfide (H2S). H2Scauses embrittlement of some metalparts, and this is why a speciallydesigned style is necessary. There arealso two types available: a single, whenonly one set of Rams is required, and atwin, when two sets of Rams are needed.The choice of style and type is usuallybased on the intended service.

Bowen Universal Blowout Preventersare hydraulically actuated, allowing themto be operated from a safe, remotelocation. They insure positive shut-inof the well by the action of a set of twoopposed Rams which seal off againstthe wire line or tubing. A set of auxiliary

Stems may be manually operated toassure closure of the Rams in case ahydraulic hose fails or to allow the Ramsto be closed and the hydraulic hosesremoved.

Bowen Universal Blowout Preventers areavailable in three standard sizes 2-9/16",4-1/16", and 7-1/16" inside diameter.They are equipped with either a flangetop and bottom or union connections. Afull range of optional flange connectionsis available. Please refer to the specifica-tions on page 12. Side outlet flanges forshut-in flow, reverse circulation, or otherpurpose may be ordered on the BlowoutPreventers at extra cost.

A Ram Assembly is required for eachsize of wire line or pipe to be sealed off.Ram Assemblies are available for eachBlowout Preventer to accommodateall sizes of wire line. The specificationssheet on page 12 lists the maximum sizepipe which may be sealed off with eachBlowout Preventer. Each Blowout Pre-

venter, when dressed with the propersize Ram Assembly, will seal off any pipesmaller than the maximum size pipe forwhich it was designed to seal.

Equalizer Valve Assemblies are avail-able at extra cost for each BlowoutPreventer. The Flush Type Equalizer Valveallows pressure to be equalized aboveand below the Blowout Preventer Rams.This facilitates opening the Rams withoutovercoming high differential pressure.

To avoid damage to rams, pressure must be

equalized before opening the rams, regard-

less of pipe size or pressure.

Bowen Universal Blowout Preventers areusually operated with a Bowen HydraulicHand Pump Assemblies. These HandPump Assemblies are available at extracost. They are well matched to the Blow-out Preventers in capacity, are depend-able, and are easy to operate. In remotelocations, where no power source isavailable, the Hydraulic Hand PumpAssemblies are quite practical.

Actuator Body Seal (Large)

Flange as Specified (Optional)

Handle

Non-Extrusion RingSeal Protector Ring

Ram Key

Inner Seal

Nut

Ram Key Screw

Side Outlet Flangeas Specified

(Optional)

Quick DisconnectCouplings (Optional)

RetainerScrew

Actuator Cylinder

Quick DisconnectCouplings (Optional)

End CapNon-Extrusion Ring

Seal Protector RingEnd Cap Seal (Small)

Race Rings

End Cap NutEnd Cap Seal (Large)

StemIndicator

Outer Seal

Actuator NutRam BodyBody

Snap RingActuator Body

Stem

Seal Protector RingSeal Protector

RingNon-Extrusion Ring Non-Extrusion Ring

Piston Nut

Piston Seal(Large)

PistonSeal

(Small)

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Bowen Hydraulic Hand Pump Assem-blies are self-contained units whichinclude all the necessary valves, gages,hoses, fittings, and couplings necessaryto attach and operate the Blowout Pre-venter. The Hand Pump is designed toallow pressure to be maintained on itsdischarge line by closing an integralvalve. Pressure may thus be maintainedfor an indefinite period of time.

When operating a twin Blowout Prevent-er, Dual Hand Pump Assemblies arerequired. The Dual Hand Pump Assem-blies may be employed separately onSingle Blowout Preventers. Thus, undercertain conditions, several Blowout Pre-venters may be serviced by Dual HandPumps.

Quick-Disconnect Couplings, PackingSets, and spare parts and repair kits forHand Pump Assemblies are available.

UseBowen Universal Blowout Preventersare used in conjunction with lubricatorassemblies whenever danger of ablowout exists or whenever operationsunder pressure must be performed.They are usually employed in conjunc-tion with other lubricator componentssuch as Control Heads, Line Wipers,Risers, Tool Traps, Unions, and StuffingBoxes. During operations, BowenBlowout Preventers (one or more) areusually located near the bottom of thelubricator assembly. While a Line Wiper,Stuffing Box, or Control Head willeffectively pack off around a wire lineand contain pressurized well fluid, eachis limited in its capabilities to contain ablowing well. The presence of a BOWENUNIVERSAL BLOWOUT PREVENTER inthe system allows the well to be posi-tively shut in if required.

ConstructionBowen Universal Blowout Preventers arecomposed of a Body, a Ram Assembly,Actuator Bodies, Actuator Nuts, EndCaps, End Cap Nuts, Actuator Cylinders,Snap Rings, Stems, Stem Indicators,Seal Assemblies, and Handles.

The Body is fitted with appropriate topand bottom flange connections for con-nection to the wellhead and to a lubrica-tor set-up. Bowen union connections arealso available.

When the optional Equalizer ValveAssembly is ordered, it is assembledon one side of the Body, extending fromabove the Rams to below the Rams. Itforms a pressure communication whichallows the wellhead pressure to be bledinto a lubricator set-up above the Blow-out Preventer, thereby equalizing thepressure above and below the Rams.This eliminates the necessity of openingthe Rams against high differential pres-sure. This Equalizer Valve is designed tobe flush, simple, rugged, and lightweight.

On the lower side of each Ram cross-

bore of the Body, there is a keyway intowhich slide the Ram keys to orient andmaintain the Rams in proper positionrelative to the wellhead bore. This Ramcross-bore terminates at its ends in acounterbore (which accepts the twoActuator Bodies) and an external thread(for making up the Actuator Bodies inposition).

The Actuator Bodies have internal SealRing Assemblies to seal off the Stems.They also have internal thread and sealsurfaces at their outboard ends intowhich the Actuator Cylinders are insert-ed. A hydraulic port near the inboard endof each Actuator Body provides an en-trance for fluid used to open the Rams.

The Actuator Cylinders are smooth-bored and are assembled with thePistons, Piston Nuts, Race Rings, andSeal Ring Assemblies required tohydraulically actuate the Rams. TheActuator Cylinders are closed by the EndCaps which are held in position by theEnd Cap Nuts.

Flush Type Equalizer Valve

Valve Stem Seal

Outer ring

Stem Retainer Screw

Valve Stem

Valve Body

Connector Tude Seal

Connector Tube

By-Pass Body

Outer Ring Seals

Body Seal

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The End Caps include internal sealswhich seal off the Stem Indicators. Theyalso include a hydraulic port for entranceof the hydraulic fluid which is used toclose the Rams. The O.D. of each EndCap has an external seal which insertsinto the Actuator Cylinder. It also has ashoulder which bears against the Actu-ator Cylinder to maintain the End Capin place.

The Ram Assembly is composed of twoRams which are almost identical. EachRam includes a Ram Body, Outer Seal,Inner Seal, two Retainer Screws (InnerSeal Screws), Ram Key, Ram Key CapScrew, Ram Guide, and two Ram GuideScrews.

The Ram Guides are assembled onopposite sides of the two Ram Bodies:one on top and one on bottom, allowingthem to overlap. Thus, Rams must bemaintained and ordered in sets (of two).

Because each Ram Assembly is boredfor a specific size wire line or pipe, aseparate set is required for each sizewhich is to be packed off. If a blowoutPreventer is to be used to pack off sever-al sizes of wire line or pipe, a set for eachsize (plus spares) should be ordered.

The Ram Assemblies are of the Replace-able Seal type, which means only theSeals require replacement when theybecome worn or damaged. The InnerSeal is composed of two steel plates witha tough synthetic rubber core bondedbetween the steel plates. The lower ofthe two plates has a slot into which areinserted the two Retainer Screws (InnerSeal Screws). These screws maintain theInner Seal in proper position within theRam Body and retract the Inner Sealwhen the Ram is opened. The Outer Sealis a molded, one-piece, saddle shaped,synthetic rubber part. It is assembled

around the outside of the Ram Body andalong each side. It is in sealing contactwith the rear of the Inner Seal, so thattogether the Inner Seal and Outer Sealform a continuous seal across the wellbore end of the Blowout Preventer.

The Ram Body is made of steel. Its facehas a large slot for the Inner Seal andtwo narrower slots. One of thesenarrower slots is assembled with a RamGuide and the other provides space forthe mating Ram Guide when the Ramsare closed.

A rugged “T” slot is cut into the rear ofeach Ram Body. The Thrust Nut of theStem which is used to open and closethe Ram is inserted into the “T” slot.

The Stem and Stem Indicator areassembled together and work as a unit.When hydraulic pressure is admitted tothe Actuator Cylinder, the Piston and the

Bowen Twin Universal Blowout Preventer

6

Bowen Universal Blowout Preventer Ram Assembly(Wireline Size)

Ram Key

Ram Body

Outer Seal

Ram Key Cap Screw

Inner Seal

Outer Seal

Retainer Screw(Inner Seal Screw)

Ram Guide Screws

Exploded ViewBowen Universal Ram Components

(Wireline Size)

7

attached Stem Indicator are forced in-ward, setting the Ram. The same slidingaction opens the Ram when pressure isintroduced through the Actuator Body. Ifthe hydraulic pressure fails or theoperator wants to remove the hydraulichoses after the Rams have been closed,the Rams may be mechanically setor locked in position by the use of theHandles attached to the Stem Indicators.The rugged threaded connectionbetween the Stem and Stem Indicatoris on a left-hand lead, which causes theStem to move inward when the Handleis turned to the right. Once the Ramsare manually closed, the hydraulic pres-sure may be removed from the Pistonand the Rams will remain closed.

The operator should note that the Ramscannot be opened by hydraulic pressureas long as these Stems are manually set.The Stem must be manually retractedwhile applying opening hydraulic pres-sure. The Rams cannot be openedmanually once closed (whether hydrauli-cally closed or mechanically closed);hydraulic pressure must be used foropening.

OperationPrior to operation, the Blowout Preventershould be examined to assure that it isin good operating order and assembledwith the correct (line) size Rams for theoperation.

The size of Rams may be checkeddirectly by measuring the Rams. Aninspection of the tubing or wirelinegroove must be performed. The ActuatorCylinder may be removed by backingthe Actuator Nut from the Body. Whenthe Actuator Cylinder is removed, theRam will be removed with it. Onceexposed, the wire line or tubing grooveat the face of the Ram may be mea-sured.

Functioning of the Rams may bechecked by using the Handles to runboth of the Rams to the closed position.The Stems should then be retracted byturning them to the left until they lightly“bottom” against the End Caps.

Now hook up the Hydraulic Hand PumpAssembly, place the 4-way valve in the“Close” position, and apply 100 – 200psi of pressure to the Pistons.

CAUTION: It is poor practice to apply pres-

sure to the Rams without a line (or rod)

in place. Do not use excessive pressure

when checking the Rams, since this causes

needless rubber distortion and extrusion.

After assuring that closure of both Ramshas occurred normally, reposition theHand Pump 4-Way Valve to the “Open”position and pump the Rams open. Lookinto the bore of the Blowout Preventer tomake certain that both Rams have beenfully retracted by the Pistons.

When a twin or tandem set of BlowoutPreventers is used, both sets of Ramsshould be checked. Since one set ischecked separately from the other, onlyone Hand Pump Assembly is required.

CAUTION: When checking a twin Blowout

Preventer with different size Rams, be sure

to check the location of each size to assure

that each size set is located in the right

sequence, top and bottom, as required for

the particular operation.

Assemble the Blowout Preventer on thewellhead.

CAUTION: Be sure to assemble the Blowout

Preventer with the wellhead end down. The

Body will have the words “Wellhead this

end” in relief or stenciled on one side. A

further check is to make sure that the Ram

Keys are on the bottom of the Ram bore

after assembly. If the Blowout Preventer is

assembled upside-down on the wellhead,

its mechanical ability will be unimpaired,

but it will not seal off.

Some provision for killing the well incase of emergency must be provided toassure complete safety. This may be inthe form of a side outlet pump connec-tion, a “kill nipple,” or other safetyequipment.

If the well “kicks” or flows to the pointthat it is not being safely retained by theLine Wiper (indicated by excessive sprayfrom the Line Wiper), stop any travel ofthe wire line or tubing, and close theBlowout Preventer Rams. The Ramsshould be closed tightly enough to seal,but not excessively tight. After the Ramshave been closed, wait for the well tosettle and the pressure to equalize.During this waiting time the Line Wiper,Stuffing Box, or Control Head may beexamined, and worn line rubbers may bereplaced if required. Additional mud orfluid may be pumped into the well duringthis time.

After the well has stabilized, open theEqualizing Valve and cautiously openthe Rams part of the way. When it isdetermined that the well is under controlagain, open the Rams completely andresume operation.

CAUTION: To avoid damage to the Rams or

Ram Guides from entering tools, be sure

that the Rams are fully open before resum-

ing operations.

To operate the Universal Blowout Pre-venter with a Bowen Hydraulic HandPump Assembly:

Check the Pump Reservoir by removingthe fill plug on top of the reservoir. Besure the reservoir is full of fluid. If fluidmust be added, Bowen Hydraulic OilH-5395 is recommended as the bestfluid for that purpose and is furnishedin all Bowen Hand Pump Assemblies.If this is not available, use a clean, goodgrade industrial hydraulic fluid, turbinegrade oil, or if necessary, a good grade,

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lightweight lubricating oil. After fillingthe reservoir, set the 4-Way Valve to theneutral position and pump the fluidthrough the valve for a minute or two tocirculate out any entrapped air.

Hook up the two hydraulic hoses: oneend of each hose to the Hand Pump andthe other end of each hose to the Blow-out Preventer. The single coupling endof each hose should be connected to thepump 4-Way Valve outlet, and the har-ness (double connector) end should beconnected to the Blowout Preventer.Connect one leg of the harness end toeach Actuator Cylinder, so that bothhoses will be connected to both ActuatorCylinders. Be sure that both legs of onehose harness end are connected to theclosing ports (outboard), and the twolegs of the other hose harness end areconnected to the opening ports (in-board). Unless these connections arecorrect, the Rams will not open andclose together. Either 4-Way Valve dis-charge port may be used as a closingport with the remaining one used as anopening port. The way in which the hoseharnesses are hooked up to the Blowout

Preventer Actuator Cylinders determineswhich port is considered the closing portand which port is considered theopening port.

To direct fluid to the closing ports of theBlowout Preventer, position the handleof the 4-Way Valve so that the pointeron the front of the handle points to thedischarge port of the 4-Way Valve whichis connected to the two closing (out-board) ports of the Blowout Preventer.Close the shut-off valve of the HandPump. Actuate the hand pump whilewatching the pressure gauge. Applyapproximately 200 psi of pressure to theRams. If pressure exists on the wellhead,this should be sufficient to seal off up toabout 2,000 psi. If no pressure exists onthe wellhead, this amount of pressure willclose the Rams tightly enough to assuresealing off against any “kicks” of the wellpressure up to approximately 2,000 psi.The ratio of required Hand Pumppressure to wellhead pressure to affect aseal is approximately 10:1. Thus, to sealoff 5,000 psi of well pressure, approxi-mately 500 psi must be applied to theBlowout Preventer Actuator Cylinders.

NOTE: The first time the hydraulic hoses are

put into service, they will be full of air. This

air should be removed by connecting the

hoses to the Hand Pump and pumping fluid

through them while deflecting the Quick-

Disconnect Coupling at the opposite end.

This will allow the air in the hose to escape

ahead of the fluid. Stop pumping when fluid

begins to flow from the open end of the

hose. The hose end may then be connected

to the Blowout Preventer. After filling the

hoses in this manner, the pump reservoir

should be refilled. Once the hoses are filled,

the fluid will remain in them since the

Quick-Disconnect Couplings used on Bowen

Hydraulic Hand Pump Assemblies are of the

self-sealing type.

The reason for bleeding the air from thehoses is to eliminate an air bank buildupin the hydraulic Actuator Cylinders. Anair bank acts as an undesirable cushionand also presents a minor hazard to thehydraulic hoses.

To open the Blowout Preventer Rams,open the Equalizer Valve on the side ofthe Blowout Preventer. This will equalizeany differential pressure above andbelow the Rams. This is especiallyimportant when the Rams have been

Bowen Hydraulic Hand Pump Assembly

9

closed against high well pressure whichlater subsides. Any well pressure trappedin the lubricator equipment above theRams will be equalized. As equalizationis reached there will be a partial relax-ation of the seals. This reduction of fric-tion makes the Rams much easier toretract.

Open the shut-off valve on the HandPump to relieve the pressure on theRams.

Set the 4-Way Valve to the “Open” posi-tion, close the shut-off valve, and pumppressure into the Blowout PreventerActuator Cylinders, opening the Rams.Continue to pump until approximately25 psi of pressure is registered on thegauge. This will assure that the Ramsare fully retracted. The shut-off valve onthe Hand Pump may then be opened.

If the Blowout Preventer is to be left openand unattended for a considerableperiod of time, the stem should betagged “Rams are open”. The hydraulichand pump assembly may then bedisconnected.

In cases when the Blowout Preventer isto be closed and left closed for aconsiderable period of time, the Ramsshould be closed, and the Stems shouldbe screwed in by using right-handrotation. Tighten them as much aspossible by hand only. The HydraulicHand Pump may then be secured anddisconnected.

Once a Bowen Hydraulic BlowoutPreventer is closed and the Hand PumpAssembly removed, due considerationshould be given to having a Hand PumpAssembly available to open the Rams.Stems provide for emergency closingand safety after closing. The BlowoutPreventer cannot be opened by theStems though; they can only be openedby hydraulic pressure.

When a Twin Blowout Preventer is beingoperated, two Hydraulic Hand PumpAssemblies are required: one for eachBlowout Preventer. This allows bothBlowout Preventers to be operatedindividually or simultaneously. Both HandPump Assemblies will be identical andwill be assembled identically on theBlowout Preventer: one to the upper setof Rams and one to the lower set ofRams.

Special Notes1. When operating the Bowen Universal

Blowout Preventer with tubing sizeRams, special care should be takenthat Rams are completely open whencollars are passed through them. Theimpact of a collar striking a Ram maydamage the Ram to such an extentthat the Ram will no longer seal or willbe prevented from being fully opened.

2. On occasion, the operator may find itnecessary to pick up the tubing stringto which the Blowout Preventer isattached. Lifting the string with theBlowout Preventer is not recom-mended. If the weight of the stringmust be carried by the Blowout Pre-venter, care should be taken not toapply any side load to the connections, and not to overload the connections. Any appreciable side load couldrupture the connection and result ingreat damage to the string and thetools as well as the Blowout Preventer.The tensile strength of the BlowoutPreventer connections, provided thatthese connections are not the smalleston the string, are generally as high asany other connection in the string.

3. Never under any circumstance applytension, compression, or pressure tothe Blowout Preventer unless the con-nections are fully tightened.

4. The practice of resting the weight ofthe running string on the Ram is detri-mental and is not recommended whenrunning tubing. If this becomes abso-lutely necessary, the Rams should beclosed lightly against the tubing, andthe tubing should be gently set on theRams. Dropping the tubing, the tubingcollar (or tools) on the Rams, even afoot or two, may result in severe dam-age to the Rams (or Ram Guides),rendering them inoperable. A weightof more than 1,000 lbs. should neverbe applied to a set of Rams, and lowerweighted objects should be appliedvery gradually.

5. Hydraulic hose ends, used with BowenHydraulic Blowout Preventers, shouldnever be allowed to drop in dirt or grit,or otherwise become contaminatedwith foreign matter. Any dirt or gritintroduced into the Blowout Preventer(or Hand Pump) is very injurious to theequipment. If a hose end becomesdirty, it should be thoroughly washedwith a solvent and dried.

Only clean hydraulic fluid should beutilized to operate the Blowout Pre-venter. The use of mixed types, dirty,or very old fluid of unknown originshould not be used. When one ofthese conditions is known or sus-pected, the hydraulic system shouldbe flushed with solvent, and thehydraulic fluid should be replenishedwith fresh fluid.

6. Before disconnecting the lubricatorequipment above a Blowout Preventer,caution should be exercised to com-pletely remove any residual pressureor accumulated pressure. This maybe done by any suitable valve locatedabove the Blowout Preventer or by useof the Equalizer (Bleed off) Valve onthe Blowout Preventer. These EqualizerValves are available as optional equip-ment for all Bowen Blowout Preventers.

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They will effectively bleed off any lightfluid accumulation or pressure, andthey are recommended in all caseswhen the Blowout Preventer is to beused with lubricator equipment locatedabove the Blowout Preventer.

MaintenanceMaintenance of Bowen Universal Blow-out Preventers is very important butvery simple. After each use, the BlowoutPreventer should be completely disas-sembled, thoroughly cleaned, repairedas may be required, and reassembled.

Complete DisassemblyComplete disassembly of the UniversalBlowout Preventer should follow theorderly sequence below:

1. Set the Preventer on a clean woodenfloor or low workbench. Rotate theHandles to the right to run the Ramsinto sealing position, but do nottighten them.

2. Remove the Nuts and Handles fromthe Stem Indicators.

3. Remove the Quick-Disconnect Coup-ling halves from the End Caps.

4. Using a small rod in the spannerholes, back off the End Cap Nuts.

5. Pull the End Caps out of the ActuatorCylinder. To detach the Stem Indica-tor from the Stem, the Stem shouldbe rotated to the right as the End Capis removed. The Stem Indicatorshould be removed with the End Cap.

6. Shove the Stem Indicators throughthe End Caps. Be sure that there areno burrs or ragged wrench marks onthe smooth surface of the Stem Indi-cators before pushing them throughthe End Caps. If burrs are present,they will damage the seals.

7. Using a pipe wrench, unscrew andremove the Actuator Cylinders. Donot wrench on the threaded portionof the Cylinder since this will damagethe threads.

8. Using a small rod in the spannerholes provided, back off the ActuatorNuts from the Body. The Rams will beremoved as the Actuator Nut is loos-ened, allowing the Actuator Bodiesto come free. As the Rams are withdrawn, exposing the “T” slots, slidethe Stems and Actuator Bodies later-ally to disengage the Stems from the“T” slots of the Rams.

9. Remove the Snap Rings from theActuator Bodies, and slide the Actu-ator Nuts off the actuator Bodies.

10. Disassemble the Rams by removing:

A. The Outer Seals. This may usuallybe done by hand, beginning ateach side with the straight portionsand progressively removing them.

B. The Retainer Screws which holdthe Inner Seals in place.

C. The Inner Seals.

D. The Ram Guide Screws.

E. The Ram Guides.

F. The Ram Key Screws.

G. The Ram Keys. These keys aremade close-fitting and may behard to remove. Loosen them bytapping them with the edge of asoft hammer. Pull them out with alarge pliers or by clamping themlightly in a vise. With a hand file,remove any jaw marks or burrsthus produced.

11. Using an optional Spanner Wrench ifavailable, unscrew and remove thePiston Nuts. If the Spanner Wrench isnot available, use a piece of squarekeystock or a large screwdriver bit.Back the Stems by clamping on thethrust nut end of the Stem with a pipewrench.

12. After removal of the Piston Nuts, slidethe Piston off the Stems.

13. Shove the Stem through the ActuatorBodies to remove them. Remove anyburrs raised on the Stem thrust nutsbefore passing them through theActuator Bodies.

14. Examine the O-ring Seals. If theyappear to be worn, damaged, orhave a pronounced flat surface (per-manent set), they should be replacedwith new seals. The Non-ExtrusionRings and Seal Protector Rings neednot be removed or replaced unlessthey show signs of damage or ad-vanced wear.

Complete AssemblyBefore actual assembly begins, all partsshould be carefully cleaned, inspected,and greased with a coat of good quality,lightweight grease or lubricating oil.

1. Begin by assembling the Rams.Insert the Ram Key into the slot at thebottom of the Ram Body. Insert theRam Key Screw and tighten it.

Slide the Ram Guide into either thetop or bottom slot of the Ram Body.Make sure the beveled edges of theRam Guide are in line with the curva-ture of the Ram surface so that theRam Guide does not project beyondthe edge of the Ram Body.

Insert the Ram Guide Screws into theRam Body, and tighten them.

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NOTE: The Rams do not use Ram Guides in

all cases. When the Rams are bored for

pipe or tubing which have diameters great-

er than half the face width of the Ram,

Guides are not required.

CAUTION: In all cases when Ram Guides

are required, the operator should check and

assure that the Ram Guides are bored for

the same size as the Ram faces, so that the

Ram grooves match the Ram Guide slots.

The operator will note that there aretwo types of Ram Guides: The7-1/16" Blow-out Preventer uses theflat type Guide just described, whilethe 4-1/16" and 2-9/16" Blowout Pre-venters use the curved Ram Guidewhich fits around the curved externaldiameter of the Ram face. In all caseshowever, the grooves in the Ram facemust match the slot in the RamGuide, of either type, and fit the dia-meter to be sealed off.

2. If they are not already assembled,assemble the Seals and Seal RingAssemblies in place in the ActuatorBody and End Cap.

The O.D. Non-Extrusion Rings andSeal Protector Rings may be openedby hand stretching them sufficientlyenough to assemble them in thegrooves.

The I.D. Non-Extrusion Rings may becompressed by squeezing the endsin until they overlap, reducing thediameter sufficiently enough to enterthe bore and be placed into theirgrooves. Be sure to face the beveledface of the Non-Extrusion Ringagainst the matching bevel in thegroove. When two are required,assemble both Non-Extrusion Ringsbefore assembling the Seal ProtectorRings.

Assemble the Seal Protector Rings byoverlapping the ends and squeezingthem to an undersize diameter smallenough to allow passage through thebore and into the groove.

After both Non-Extrusion Rings andboth Seal Protector Rings have beenassembled, install the O-ring be-tween the two Seal Protector Rings.Refer to the illustration to see theposition of the rings after assembly.

3. Slide the Stem through the ActuatorBody, allowing the threaded end toprotrude out the Cylinder end.

4. Slide the Actuator Nut over theActuator Body, and insert the SnapRing into its groove in the ActuatorBody, securing the Actuator Nut inplace.

5. With the turned base toward the Ramand the counterbored face toward theEnd Cap, assemble the Piston on theStem.

6. Screw the Piston Nut onto the Stemwith its slotted face toward the EndCap. Using the Spanner Wrench witha bar, tighten the Piston Nut.

7. Slide the Ram “T” slot over the thrustnut of the Stem, center it, and pull itup into the counterbore of the Actu-ator Body.

8. Insert the Ram (with the ActuatorBody attached) into the Ram bore.Align the Ram Key with the keyway inthe Blowout Preventer Body and slidethe Ram into the bore. Place theActuator Body into the counterbore ofthe Body far enough to start threadsof the Actuator Nut. Screw the Actu-ator Nut on snug. Using a small rodin the spanner holes or a large pipewrench, tighten the Actuator Nut.

9. Screw the Stem Indicator onto theStem approximately 4 turns.

10. Assemble the two Race Rings ontothe Stem Indicator.

11. Assemble the End Cap Nut over theEnd Cap, and slide the ActuatorCylinder (the end without the Seal)onto the End Cap, starting thethreads of the End Cap Nut onto thethreads of the Actuator Cylinder.

12. Fit the sealed end of the ActuatorCylinder into the Actuator Body andaround the Stem Indicator. Thread itinto position. Both the Actuator Cyl-inder and the End Cap Nut may betightened simultaneously.

13. Attach the Handle to the Stem Indi-cator, and lock it in position with theNut.

14. Assemble the Quick-DisconnectCoupling halves into the ActuatorBody and End Cap.

The Equalizer Valve may be assem-bled as follows:

A. Insert the Seals and Back-UpRings into the Outer Rings.

B. Assemble the Seals and Back-UpRings on the Connector Tube.

C. Insert the Valve Body and By-PassBody into the Outer Rings.

D. Insert the ends of the ConnectorTube into the bores in the sides ofthe Outer Rings.

12

E. Holding the assembly together asa unit, screw the By-Pass Bodyand Valve Body into the BlowoutPreventer Body. Be sure to get theBy-Pass Body in the upper port(above the Ram bore) and theValve Body in the lower port.Simultaneously screw both bodiesin place, and make them uptightly.

F. Assemble the Seal and Back-UpRing onto the Valve Stem, andinsert the Valve Stem into the ValveBody. Using a socket wrench,screw the Valve Stem until it seats.

G. Assemble the Retainer Screw intothe Valve Body, and screw it until itis snug.

Low alloy steels in these productsshould be welded only by a skilledwelder following recognized pro-cedures, particularly with regard topre-heating and post-heating.

Bowen is not responsible for thequality of welds performed byothers.

13

Bowen Hydraulic Hand Pump Assembly No. 19120ITEM PART NO.

NO. REQ’D. DESCRIPTION

19120 Complete Assembly

A 19121 1 70 Cu. In. VSL 1" Piston

B 19122 1 Mounting Base

C 19123 1 4 Way Valve

D 12821 2 1/4" Close Nipple (HP)

E 19065 6 1/4" Street Ell (HP)

F 19124 2 1/4" Tee (HP)

G 19125 1 36" x 1/4" Tubing (Return Line)

H 19126 1 1/4" Tubing Fitting

I 19127 1 900 1/4" Tubing Fitting

J 19128 1 2000 Lb. 1/4" Gage

K 19129 4 1/4" x 3/4" Allenhead Cap Screw

L 19248 4 1/4" Hex Nut

M 19066 2 1/4" 20' Hose W/1/4" Pipe Male Conn.

N 19067 4 Double Shut Off Couplings (Socket)

O 29481 4 Double Shut Off Couplings (Plug)

P 19249 10 1/4" Hose Couplers

E

O

N

M

E

O

N

M

A

B

LK

F

D D

J

C

H

O

E

E

E

N

M

G

F

D

KL

I

Bowen Hydraulic Hand Pump Assembly No. 19120

14

Bowen Parts ListPARTS NUMBERS

19071 31662 19121

ITEM QTY. DESCRIPTION MODEL MODEL MODEL

100-4-120 100-6-120 100-8-120

1 1 Handgrip 100-8-0 100-8-0 100-8-0

2 1 Handle 100-2-0 100-2-0 100-2-0

3 1 Lever 100-1-0 100-1-0 100-1-0

4 3 Pin 100-13-0 100-13-0 100-13-0

5 3 Cotter Pin 100-27-0 100-27-0 100-27-0

6 2 Link 100-15-4 100-15-4 100-15-4

7 1 Piston 100-14-4 100-14-6 100-14-8

8 1 Seal, Piston 100-10-4 100-10-6 100-10-8

8a 1 Back-Up Ring ≡ 100-11-6 100-11-8

9 1 Barrel 100-9-4 100-9-6 100-9-8

10 1 Seal, Barrel 100-12-4 100-12-4 100-12-8A

11 1 Check Ball 100-19-4 100-19-4 100-19-4

12 1 Valve Block 100-24-4 100-24-4 100-24-8A

13 1 Check Ball 100-21-4 100-21-4 100-21-4

14 1 Spring 100-23-4 100-23-4 100-23-4

15 1 Snap Ring 100-22-4 100-22-4 100-22-4

16 1 Washer 100-17-4 100-17-4 100-17-4

17 1 Block & Reservoir Ass’y. 100-3-4-120 100-3-4-120 100-3-8-120

18 1 Release Ball 100-18-0 100-18-0 100-18-0

19

20 1 Seal, Release Screw 100-6-0 100-6-0 100-6-0

21 1 Release Screw 100-5-0A 100-5-0A 100-5-0A

22 1 Seal, Valve Block ≡ ≡ ≡23 1 Seal, Fill Plug 100-34-0 100-34-0 100-34-0

24 1 Fill Plug 100-31-0 100-31-0 100-31-0

25 1 Washer 100-33-0 100-33-0 100-33-0

26 1 Screw, Vent 100-32-0 100-32-0 100-32-0

Metallic Spare Parts Kit For Models Listed Below79758 79762 79760

*METALLIC KIT KIT #900-4-900 KIT #900-6-900 KIT #900-8-900

DESCRIPTION MODEL 100-4 MODEL 100-6 MODEL 100-8

Piston 100-14-4 100-14-6 100-14-8

Release Screw 100-5-0 100-5-0 100-5-0*Kits contain parts listed above in one complete package.

Optional Seal Spare Parts Kit

For Models Listed Below77696 79761 79759

ITEM *SEAL KIT KIT # 100-4-200 KIT # 100-6-200 KIT # 100-8-200

DESCRIPTION MODEL 100-4 MODEL 100-6 MODEL 100-8

1 Cotter Pin 100-27-0 100-27-0 100-27-0

2 Seal, Piston 100-10-4 100-10-6 100-10-8

3 Seal, Barrel 100-12-4 100-12-4 100-12-8

4 Back-Up Ring ≡ 100-11-6 100-11-8

5 Check Ball 100-19-4 100-19-4 100-19-4

6 Check Ball 100-21-4 100-21-4 100-21-4

7 Spring 100-23-4 100-23-4 100-23-4

8 Snap Ring 100-22-4 100-22-4 100-22-4

9 Washer 100-17-4 100-17-4 100-17-4

10 Seal, Valve Block ≡ ≡ ≡11 Release Ball 100-18-0 100-18-0 100-18-0

12 Washer 100-33-0 100-33-0 100-33-0*Kits contain parts listed above in one complete package.

1

2

7

4

5

3

6

9

10

12

14

16

13

15

17

21

20

18

11

82625

2423

Model 100-4-120

Model 100-12-120

Model 100-8-120

Model 100-6-120

8a

12

22

15

Bowen Universal Blowout PreventersPressure ratings are based on body strength only and are generally not determinded by

the connection. User should be guided by thread limitations in API spec. 6A para. 1.2.4.Type Single Twin Single Twin Single Twin Single Twin TwinService H2s H2s Standard Standard H2S H2S H2S H2S StandardMaximum Size Pipe 1,900 1,900 1,900 1,900 1,900 1,900 2-7/8 2-7/8 2-7/8Will Pack Off O.D. O.D. O.D. O.D. O.D. O.D. O.D. O.D. O.D.

Tubing Tubing Tubing Tubing Tubing Tubing Tubing Tubing TubingInternal Diameter 2-9/16 2-9/16 2-9/16 2-9/16 2-9/16 2-9/16 4-1/16 4-1/16 4-1/16(Inches)*Working Pressure P.S.I. 10,000 10,000 15,000 15,000 15,000 15,000 10,000 10,000 10,000

2-9/16 2-9/16 2-9/16 2-9/16 2-9/16 2-9/16 4-1/16 4-1/16 4-1/16Standard Connection API 6 BX API 6 BX API 6 BX API 6 BX API 6 BX API 6 BX API 6 BX API 6 BX API 6 BX

10,000# 10,000# 15,000# 15,000# 15,000# 15,000# 10,000# 10,000# 15,000#Flanges Flanges Flanges Flanges Flanges Flanges Flanges Flanges Flanges

Complete Assembly Part No. 60233 60237 50460 53183 59775 59776 77136 77142 63197Weight 400 760 400 760 410 770 ≡ 1350 1750

Replacement PartsBody Part No. 60234 60238 50461 53192 59817 59818 77137 78508 63198

Weight 220 530 220 530 225 535 ≡ 905 1120Part No. 50462 50462 50462 50462 81018 81018 47036 47036 62731

Ram Assembly Weight 22 22 22 22 22 22 48 48 48No. Req’d. 2 2 2 2 2 2 2 2 2Part No. 50463 50463 50463 50463 59820 59820 77139 77139 57362

Actuator Nut Weight 12 12 12 12 12 12 ≡ 30 35No. Req’d. 2 4 2 4 2 4 2 4 4Part No. 60235 60235 50464 50464 59821 59821 70227 70227 57363

Actuator Body Weight 30 30 30 30 30 30 ≡ 60 65No. Req’d. 2 4 2 4 2 4 2 4 4Part No. 50465 50465 50465 50465 60166 60166 43591 43591 57364

Actuator Cylinder Weight 3 3 3 3 3 3 ≡ 7 9No. Req’d. 2 4 2 4 2 4 2 4 4Part No. 60236 60236 50466 50466 59822 59822 81965 81965 57548

Stem Weight 3 3 3 3 3 3 ≡ 5 6No. Req’d. 2 4 2 4 2 4 2 4 4Part No. 50467 50467 50467 50467 59823 59823 47039 47039 57365

Piston Weight 5 5 5 5 5 5 ≡ 7 8No. Req’d. 2 4 2 4 2 4 2 4 4Part No. 50468 50468 50468 50468 59824 59824 81968 81968 81968

Piston Nut Weight 1/4 1/4 1/4 1/4 1/4 1/4 ≡ 1/2 1/2No. Req’d. 2 4 2 4 2 4 2 4 4Part No. 50469 50469 50469 50469 59825 59825 81966 81966 81966

Stem Indicator Weight 2 2 2 2 2 2 ≡ 2-1/2 2-1/2No. Req’d. 2 4 2 4 2 4 2 4 4Part No. 50470 50470 50470 50470 48382 48382 80980 43596 57366

Snap Ring Weight 1/2 1/2 1/2 1/2 1/2 1/2 ≡ 3/4 3/4No. Req’d. 2 4 2 4 2 4 2 4 4

Plastic Packing Part No. ≡ ≡ ≡ ≡ ≡ ≡ 70229 70229 ≡Seal RingSnap Ring Part No. ≡ ≡ ≡ ≡ ≡ ≡ 43596 80980 ≡Retainer Screw Part No. ≡ ≡ ≡ ≡ ≡ ≡ 64227 64227 ≡

Part No. 50471 50471 50471 50471 59826 59826 47042 47042 47042Race Ring Weight 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8

No. Req’d. 4 8 4 8 4 8 4 8 8Part No. 50472 50472 40572 50472 59827 59827 47043 47043 57367

End Cap Weight 10 10 10 10 10 10 ≡ 14 15No. Req’d. 2 4 2 4 2 4 2 4 4

Handle Part No. 11569 11569 11569 11569 13349 13349 43599 66309 66309(2 Req’d.) Weight 5 5 5 5 5 5 ≡ 7 7Handle Nut Part No. 11570 11570 11570 11570 12836 12836 43600 43600 43600(2 Req’d.) Weight 1/8 1/8 1/8 1/8 1/8 1/8 1/2 1/8 1/2 *On all 4-1/16 internal diameter Universal Blowout Preventers, optional lip seal at stem and plastic packing conversion kits are available. See page 19.

16

Bowen Universal Blowout Preventers [Continued]Complete Assembly Part No. 60233 60237 50460 53183 59775 59776 77136 77142 63197

Replacement Parts (Continued)Actuator Body Seal Part No. 568345 568345 568345 568345 568427 568427 568435 568435 568435(Large) Weight 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16

No. Req’d. 2 4 2 4 2 2 4 4 4Part No. 46380-48 46380-48 216-48 216-48 46380-54 46380-54 46380-62 46380-50 216-62

Non-extrusion Ring Weight 1/4 1/4 1/4 1/4 1/4 1/4 ≡ 1/4 1/4No. Req’d. 21 4 2 4 2 4 ≡ 8 4Part No. 227-48 227-48 227-48 227-48 227-54 227-54 227-62 227-62 227-62

Seal Protector Ring Weight 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4No. Req’d. 2 4 2 4 2 4 4 4 4

Stem Seal/ Part No. 568215 568215 568215 568215 568220 568220 568218 568218 568220Actuator Body Seal Weight 1/32 1/32 1/32 1/32 1/32 1/32 ≡ 1/32 1/4(Small) No. Req’d. 4 7 4 7 5 12 2 4 8

Part No. 365-20 365-20 365-20 365-20 365-25 365-25 365-23 365-23 365-25Non-extrusion Ring Weight 1/8 1/8 1/8 1/8 1/8 1/8 ≡ 1/8 1/8

No. Req’d. 8 16 8 16 12 24 4 8 16Part No. 375-20 375-20 375-20 375-20 375-25 375-25 375-23 375-23 375-25

Seal Protector Ring Weight 1/8 1/8 1/8 1/8 1/8 1/8 ≡ 1/8 1/8No. Req’d. 8 16 8 16 12 24 4 8 16

Actuator Cylinder Part No. 568249 568249 568249 568249 568259 568259 568249 568249 568257Seal Weight 1/8 1/8 1/8 1/8 1/8 1/8 ≡ 1/8 1/8

No. Req’d. 2 4 2 4 2 4 2 4 4Piston Seal Part No. 568215 568215 568215 568215 568220 568220 568218 568218 568220(Small) Weight 1/32 1/32 1/32 1/32 1/32 1/32 ≡ 1/32 1/32

No. Req’d. 2 4 2 4 2 4 2 4 4End Cap Seal Part No. 568244 568244 568244 568244 568254 568254 568245 568245 568251(Large) Weight 1/32 1/32 1/32 1/32 1/32 1/32 ≡ 1/32 1/32

No. Req’d. 2 4 2 4 2 4 2 4 4End Cap Seal Part No. 568218 568218 568218 568218 568326 568326 568325 568325 568325(Small) Weight 1/32 1/32 1/32 1/32 1/32 1/32 ≡ 1/32 1/32

No. Req’d. 2 4 2 4 2 4 2 4 4Part No. 365-23 365-23 365-23 365-23 365-29 365-29 365-28 365-28 365-28

Non-extrusion Ring Weight 1/8 1/8 1/8 1/8 1/8 1/8 1/32 1/32 1/32No. Req’d. 2 4 2 4 2 4 4 4 4Part No. 375-23 375-23 375-23 375-23 375-29 375-29 375-28 375-28 375-28

Seal Protector Ring Weight 1/8 1/8 1/8 1/8 1/8 1/8 ≡ 1/8 1/8No. Req’d. 2 4 2 4 2 4 2 4 4Part No. 50475 50475 50475 50475 59828 59828 43607 43607 57368

End Cap Nut Weight 4 4 4 4 4 4 ≡ 6-1/2 7No. Req’d. 2 4 2 4 2 4 2 4 4

Piston Seal Part No. 568346 568346 568346 568346 568431 568431 568347 568347 568428(Large) Weight 1/32 1/32 1/32 1/32 1/32 1/32 ≡ 1/32 1/32

No. Req’d. 2 4 2 4 2 4 2 4 4Piston Part No. 216-49 216-49 216-49 216-49 216-58 216-58 46380-50 46380-62 216-55Non-extrusion Ring Weight 1/4 1/4 1/4 1/4 1/4 1/4 ≡ 1/4 1/4

No. Req’d. 4 8 4 8 4 8 4 8 8Part No. 227-49 227-49 227-49 227-49 227-58 227-58 227-50 227-50 227-55

Seal Protector Ring Weight 1/8 1/8 1/8 1/8 1/8 1/8 ≡ 1/8 1/8No. Req’d. 4 8 4 8 4 8 4 8 8Part No. 50477 50477 50477 50477 81019 81019 47044 47044 61652

Ram Body Weight 8 8 8 8 8 8 ≡ 20 20No. Req’d. 2 4 2 4 2 4 2 4 2

Ram Inner Seal Part No. 50478 50478 50478 50478 59831 59831 47050 47050 47050(W/O Insert) Weight 1 1 1 1 1 1 ≡ 1 1

No. Req’d. 2 4 2 4 2 4 2 4 2Part No. 50479 50479 50479 50479 59832 59832 43603 43603 43603

Ram Outer Seal Weight 1 1 1 1 1 1 ≡ 1 1No. Req’d. 2 4 2 4 2 4 2 4 2

Retainer Ring Part No. ≡ ≡ ≡ ≡ ≡ ≡ 65916 55916 ≡Lip Seal Part No. ≡ ≡ ≡ ≡ ≡ ≡ 65914 65914 ≡Back-up Ring Part No. ≡ ≡ ≡ ≡ ≡ ≡ 65915 65915 ≡

Part No. 64226 64226 64226 64226 64226 64226 64229 64227 62888Ram Retainer Screw Weight 1/8 1/8 1/8 1/8 1/8 1/8 ≡ 1/8 1/8

No. Req’d. 4 8 4 8 4 8 4 8 4

17

Bowen Universal Blowout Preventers [Continued]Complete Assembly Part No. 60233 60237 50460 53183 59775 59776 77136 77142 63197

Replacement Parts (Continued)Part No. 50476 50476 50476 50476 50476 50476 13486 13486 61654

Ram Key Weight 1/8 1/8 1/8 1/8 1/8 1/8 ≡ 1/8 1/8No. Req’d. 2 4 2 4 2 4 2 4 2Part No. 50481 50481 50481 50481 60280 60280 47048 47048 ≡

Ram Guide* Weight 1 1 1 1 1 1 ≡ 1 ≡No. Req’d. 2 4 2 4 2 4 2 4 Integral

Ram Guide Screw/ Part No. 64599 64599 64599 64599 64222 64222 ≡ 64229 ≡Retainer Screw Weight 1/32 1/32 1/32 1/32 1/32 1/32 ≡ 1/32 ≡

No. Req’d. 4 8 4 8 4 8 ≡ 8 ≡Part No. 64219 64219 64219 64219 64219 64219 64219 64219 22830

Ram Key Cap Screw Weight 1/32 1/32 1/32 1/32 1/32 1/32 ≡ 1/32 1/32No. Req’d. 4 8 4 8 4 8 4 8 2Part No. 48758 48758 48758 48758 48758 48758 48758 48758 63205

Thread Protector Weight 1/32 1/32 1/32 1/32 1/32 1/32 ≡ 1/32 1/32No. Req’d. 4 8 4 8 4 8 4 8 8Part No. ≡ ≡ ≡ ≡ 59829 59829 ≡ ≡ ≡

Seal Ring Weight ≡ ≡ ≡ ≡ 3 3 ≡ ≡ ≡No. Req’d. ≡ ≡ ≡ ≡ 2 4 ≡ ≡ ≡Part No. ≡ ≡ ≡ ≡ ≡ ≡ 23727 23727 23727

Set Screw Weight ≡ ≡ ≡ ≡ ≡ ≡ ≡ 1/16 1/16No. Req’d. ≡ ≡ ≡ ≡ ≡ ≡ 2 4 4

Plastic Packing Part No. ≡ ≡ ≡ ≡ ≡ ≡ 70226 70226 ≡Assembly No. Req’d. ≡ ≡ ≡ ≡ ≡ ≡ 2 4 ≡Plastic Packing Screw Part No. ≡ ≡ ≡ ≡ ≡ ≡ 23388 23388 ≡Plastic Packing Part No. ≡ ≡ ≡ ≡ ≡ . ≡ 61940 61940 ≡Check ValveSocket Head Pipe Plug Part No. ≡ ≡ ≡ ≡ ≡ ≡ 61942 61942 ≡Plastic Sealant Part No. ≡ ≡ ≡ ≡ ≡ ≡ 62025 62025 ≡Plastic Packing Part No. ≡ ≡ ≡ ≡ ≡ ≡ 70228 70228 ≡HousingPiston Nut Part No. 23300 23300 23300 23300 23310 23310 23310 23310 ≡Retainer ScrewStencil Plate Part No. 80807 80807 80807 80807 80807 80807 79113 ≡ ≡

OptionalPiston Nut Part No. 50532 50532 50532 50532 50532 50532 47051 47051 47051Spanner Wrench Weight 6-1/2 6-1/2 6-1/2 6-1/2 6-1/2 6-1/2 ≡ 6-1/2 6-1/2

Part No. 35090 35090 35090 35090 35090 52586 35090 35090 35090Hand Pump Assembly Weight 35 35 35 35 35 40 ≡ 35 35

No. Req’d. ≡ 2 ≡ 2 ≡ ≡ ≡ ≡ ≡Ram Inner Seal Part No. 50482 50482 50482 50482 59834 59834 47045 47045 47045For Ram Insert++ Weight 3 3 3 3 3 3 3 3 3

No. Req’d. 2 2 ≡ ≡ 2 2 2 4 2Part No. 50483 50483 50483 50483 59835 59835 46463 46463 46463

Ram Insert Weight 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8No. Req’d. 2 2 2 2 2 2 2 2 2

Equalizer Valve Part No. 20103 20103 80094 20103 ≡ 59836 80094 50542 63201Assembly Weight 2 2 2-1/2 2-1/2 ≡ . 3 ≡ 2-1/2 2-1/2Eye Bolt Part No. ≡ ≡ ≡ ≡ ≡ ≡ 47046 47046 47046(2 Req’d.) Weight ≡ ≡ ≡ ≡ ≡ ≡ ≡ 1/2 1/2Steel Manifold Part No. 52423 52423 52423 52423 ≡ ≡ ≡ ≡ ≡Assembly Weight 45 45 45 45 ≡ ≡ ≡ ≡ ≡

No. Req’d. ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡ ≡

How To Order: Recommended Spares:

Specify: (1) Name and number of assembly or part. (1) 2 sets inner and outer seals for each(2) Connections, if other than standard. pipe or wire line size.(3) Pipe or wire line size. (2) 6 complete sets “O” Ring seals.(4) Any desired spares or optionals, by name and number. (3) 2 complete sets non-extrusion and seal

protector rings.*One Ram Assembly included with each Blowout Preventer. Additional assemblies are required for each pipe or wire line size. ++ Does not include Ram insert.

18

Bowen Universal Blowout PreventersType Single Twin Twin Single Twin

1.900 1.900 2-7/8 5-9/16 5-9/16Maximum Size Pipe Will Pack Off O.D. O.D. O.D. O.D. O.D

Tubing Tubing Tubing Tubing TubingInternal Diameter (Inches) 2-9/16 2-9/16 4-1/16 7-1/16 7-1/16Working Pressure P.S.I. 15.000 15.000 10.000 10.000 10.000

2-9/16 2-9/16 4-1/16 7-1/16 7-1/16 API 6 API 6 API 6 API 6 API 6

Standard Connection Bx Bx Bx Bx Bx 15,000# 15,000# 10,000# 10,000# 10,000# Flanges Flanges Flanges Flanges Flanges

Complete Assembly Part No. 80214 80242 77140 66260 78828 Weight 400 760 1350 1385 2295

Replacement Parts Part No. 59819 59819 47036 49790 49790

Ram Assembly Weight 22 22 48 75 75 No. Req’d 1 Set 2 Sets 2 Sets 1 Set 2 Sets Part No. 59831 59831 47050 49774 49774

Inner Seal (W/O Insert) Weight 1/32 1/32 1/32 1/32 1/32 No. Req’d 2 4 4 2 4 Part No. 59832 59832 43603 49775 49775

Outer Seal Weight 1/32 1/32 1/32 1/32 1/32 No. Req’d 2 4 4 2 4 Part No . 80215 80248 78508 66261 78829

Body Weight 225 535 905 805 1405 No. Req’d 1 2 2 1 2 Part No. 12836 12836 43600 43600 43600

Handle Nut Weight 1/8 1/8 1/8 1/2 1/2 No. Req’d 2 4 4 2 4 Part No. 48382 48382 43596 48382 48382

Snap Ring Weight 1/2 1/2 3/4 1 1 No. Req’d 2 4 4 2 4 Part No. 48758 48758 48758 48758 48758

Thread Protector Weight 1/32 1/32 1/32 1/32 1/32 No. Req’d 4 8 8 4 8

Eye Bolt Part No. NR NR NR 66313 66313(2 Req’d.) Weight 1/2 1/2

Part No. 60166 60166 43591 49764 49764Actuator Cylinder Weight 3 3 7 13 13

No. Req’d. 2 4 4 2 4 Part No. 59822 59822 81965 51127 51127

Stem Weight 3 3 5 8 8 No. Req’d. 2 4 4 2 4 Part No. 59823 59823 47039 49766 49766

Piston Weight 5 5 7 10 10 No. Req’d. 2 4 4 2 4 Part No. 59824 59824 81968 49767 49767

Piston Nut Weight 1/4 1/4 1/2 1/2 1/2 No. Req’d. 2 4 4 2 4 Part No. 59825 59825 81966 49768 49768

Stem Indicator Weight 2 2 2-1/2 3 3 No. Req’d. 2 4 4 2 4 Part No. 59826 59826 47042 49770 49770

Race Ring Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 4 8 8 4 8 Part No. 59827 59827 47043 49771 49771

End Cap Weight 10 10 14 20 20 No. Req’d. 2 4 4 2 4 Part No. 59828 59828 43607 49772 49772

End Cap Nut Weight 11-1/2 11-1/2 6-1/2 10 10 No. Req’d. 2 4 4 2 4 Part No. 59830 59830 47044 49773 49773

Ram Body Weight 8 8 20 35 35 No. Req’d. 2 4 4 2 4 Part No …….. 60280 60280 47048 50762 50762

Ram Guide Weight 1 1 1 1 1 No. Req’d. 2 4 4 2 4 Part No. 50476 50476 13486 50775 50775

Ram Key Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 2 4 4 2 4 Part No. 64219 64219 64219 64220 64220

Ram Key Cap Screw Weight 1/32 1/32 1/32 1/32 1/32 No. Req’d. 4 8 8 2 4 Part No. 64226 64226 64227 64227 64227

Retainer Screw Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 4 8 8 4 8

19

Bowen Universal Blowout PreventersComplete Assembly Part No . 80241 80242 77140 66260 78828

Replacement Parts (Continued) Part No. 64222 64222 64229 64601 64601

Retainer Screw/Ram Guide Screw Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 4 8 8 4 8 Part No . 48758 NR NR 57192 57192

Thread Protector Weight 1/32 1/32 No. Req’d. 10 20 Part No. 59820 59820 77139 66262 66262

Actuator Nut Weight 12 12 30 45 45 No. Req’d. 2 4 4 2 4 Part No. 59821 59821 70227 66263 66263

Actuator Body Weight 30 30 60 80 80 No. Req’d. 2 4 4 2 4

Piston Seal Part No. 568220 568220 568218 568222 568222(Small) Weight 1/32 1/32 1/32 1/32 1/32

No. Req’d. 2 4 4 2 4Stem Seal/Actuator Body Seal Part No. 568220 568220 568218 568325 568325(Small) Weight 1/32 1/32 1/32 1/32 1/32

No. Req’d. 6 12 4 4 8End Cap Seal Part No. 568326 568326 568325 568327 568327(Small) Weight 1/32 1/32 1/32 1/32 1/32

No. Req’d. 2 4 4 2 4Piston Seal Part No. 568431 568431 568347 568427 568427(Large) Weight 1/32 1/32 1/32 1/32 1/32

No. Req’d. 2 4 4 2 4Actuator Body Seal Part No. 568427 568427 568435 568445 568445(Large) Weight 1/32 1/32 1/32 1/32 1/32

No. Req’d. 2 4 4 2 4End Cap Seal Part No. 568254 568254 568245 568250 568250(Large) Weight 1/32 1/32 1/32 1/32 1/32

No. Req’d. 2 4 4 2 4 Part No. 568259 568259 568249 568255 568255

Actuator Cylinder Seal Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 2 4 4 2 4 Part No. 216-58 216-58 46380-50 216-54 216-54

Piston Non-extrusion Ring Weight 1/4 1/4 1/4 1/4 1/4 No. Req’d. 4 8 8 4 8 Part No. 46380-54 46380-54 46380-62 46380-72 46380-72

Non-extrusion Ring Weight 1/4 1/4 1/4 1/4 1/4 No. Req’d. 2 4 4 2 4 Part No. 227-58 227-58 227-62 227-72 227-72

Seal Protector Ring Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 4 8 8 4 8 Part No. 227-54 227-54 227-50 227-54 227-54

Seal Protector Ring Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 2 4 4 2 4 Part No. 365-25 365-25 365-23 365-28 365-28

Non-extrusion Ring Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 12 24 8 8 16 Part No. 365-29 365-29 365-28 365-30 365-30

Non-extrusion Ring Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 2 4 4 2 4 Part No. 375-25 375-25 375-23 375-28 375-28

Seal Protector Ring Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 12 24 8 8 16 Part No. 375-29 375-29 375-28 375-30 375-30

Seal Protector Ring Weight 1/8 1/8 1/8 1/8 1/8 No. Req’d. 2 4 4 2 4

Handle Part No. 13349 13349 43599 59198 59198(2 Req’d.) Weight 5 5 7 9 9

Bowen Universal Blowout Preventers (Continued)

Replacement Parts (Continued)*Optional Flanges

Top And Bottom Flanges

For 2-9/16" **2-1/2" **3" 2-9/16" 2-9/16" 2-9/16"

I.D. 50460 A.P.I. Type 6B A.P.I. Type 6B 6 BX 6 BX 6 BX

Assembly 5,000 # 5,000 # 15,000 # 15,000 # 10,000 #

(Series 1500) (Series 1500) Open Face Studded Open Face

Weight EA. 40 50

For 4-1/16" **4" 6" **6" 4-1/16" 4-1/16"

I.D. 47034 A.P.I. Type 6B A.P.I. Type 6B A.P.I. Type 6B Std. 6 BX 6 BX

Assembly 5,000 # 5,000 # 3,000 # Open Face 10,000 #

(Series 1500) (Series 1500) (Series 900) 10,000 # W.P. W.P. Studded

Weight EA. 150 360 230 180 180

Side Outlet Flanges **2" 1-13/16"

For 2-9/16" A.P.I. Type 6B A.P.I.

I.D. 50460 5,000 # 6 Bx

Assembly (Series 1500) 15,000 #

Flanges

Weight EA. 30 30

2-1/16" **2" 2" **2-1/2" **2-1/2" **3" 3"

For 4-1/16" A.P.I. A.P.I. Type 6B A.P.I. A.P.I. Type 6B A.P.I. A.P.I. Type 6B A.P.I. Type 6B

I.D. 47034 10,000 # 5,000. # 10,000 # 5,000 # 10,000 # 3,000 # 5,000 #

Assembly 6 BX (Series 1500) (Series 2900) (Series 1500) (Series 2900) (Series 900) (Series 1500)

Weight EA. 63 55 70 80 95 65 95

* NOTE: Flanges listed apply for H2S Service also.** NOTE: Working pressure of Blowout Preventer must be reduced to that of the Flanges when supplied with Optional Flanges

of lesser working pressure than the rated working pressure of the Blowout Preventer.

Optional Accessories ExtraPiston Nut Spanner Wrench Part No . 50532 ≡ ≡ ≡ ≡

Weight 6-1/2 ≡ ≡ ≡ ≡Hand Pump Part No. 35090 35090 35090 49800 49800

Weight 35 35 35 35 35Packing Set Part No. 72559 80250 80251 66264 66264

Weight 5/8 5/8 5/8 5/8 5/8How To Order: Recommended Spares: Special Notes:

Specify: (1) 2 Sets Inner and Outer Seals for each Pipe Working Pressure of Blowout Preventer must be(1) Name and Number of Assembly or Part. or Wire Line Size. reduced to that of the Flanges when supplied(2) Connections, if other than Standard. (2) 6 Complete Sets “O” Ring Seals. with Optional Flanges of lesser Working Pressure(3) Pipe or Wire Line Size. (3) 1 Ram Assembly for each size Line or Pipe than the rated Working Pressure of the Blowout(4) Any Desired Spares or Optionals, by to be sealed off. Preventer.

Name and Number.

20

21

41/16" Internal Diameter Conversion Kit (Optional)

Conversion Kit No. 65924 for Lip Seal at Stem

Consists of:Item No. Description No. Req’d65914 Lip Seal 265915 Back-Up Ring 265916 Retainer Ring 280980 Snap Ring 2

Note: Standard actuator body must be modified per drawing above to accept Kit.

4-1/16" Universal Blowout PreventerType B Actuator Body SK-603

1.875"+.002"/–.000"

1.980"+.002"/–.000"

.068".205"

.875"

.752" x 45°

22

Conversion Kit No. 70226 for Plastic Packing (2 required)

Consists of:Item No. Description No. Req’d51118 Plastic Packing Screw 161940 Plastic Packing Check Valve 161942 Socket Head Pipe Plug 162025 Plastic Sealant 170227* Actuator Body 170228 Plastic Packing Housing 170229 Plastic Packing Seal Ring 1

*This part can not be made from old Body. New part must be purchased with Kit.

Weep Hole

Plastic Packing Seal RingNo. 70229

Actuator Bodyfor Plastic Packing AssemblyNo. 70227

Plastic Packing HousingNo. 70228

Plastic Packing Check Valve No. 61940

Plastic Sealant No. 62025

Plastic Packing Screw No. 51118

Pipe Plug No. 61942

Conversion Kit for Plastic Packing

41/16" Internal Diameter Conversion Kit (Optional)

w w w . n a t o i l . c o m© Copyright 2003 National Oilwell

PDF/0827

MANUAL NO. 8520 R1

w w w. c u s t o m e r. s e r v i c e @ n a t o i l . c o m

United StatesCorporate Office10000 Richmond AvenueHouston, TX 77042 USATel: 713-346-7500Fax: 713-346-7959

AlaskaP.O. Box 92962Anchorage, AK 99509 USA4111 IngraAnchorage, AK 99503-6117 USATel: 907-563-5253Fax: 907-561-0071

California4117 Atlas CourtBakersfield, CA 93308 USATel: 661-395-0165Fax: 661-328-1827

2875 Junipero AvnueSignal Hill, CA 90755 USATel: 562-988-0200Fax: 562-988-0350

Louisiana108 Nova DriveBroussard, LA 70518-4120 USAP.O. Box 446Broussard, LA 70518-0446 USATel: 337-839-2400Fax: 337-839-2211

190 Thompson RoadHouma, LA 70363 USATel: 504-851-1111Fax: 504-851-1117

Mississippi5349 Highway 11 North EllisvilleEllisville, MS 39437 USATel: 601-428-0646Fax: 601-428-0617

New MexicoBox 383Farmington, NM 87499 USA#14 CR 5860Farmington, NM 87401USATel: 505-326-4303Fax: 505-326-4304

North DakotaBox 731Williston, ND 58801 USA3202 1st Avenue WestWilliston, ND 58801 USATel: 701-774-0091Fax: 701-774-0092

Oklahoma3800 Thomas RoadOklahoma City, OK 73179 USAToll Free: 877-760-1711Tel: 405-677-2484Fax: 405-677-2457

Texas

Box 801Alice, TX 78333 USA1249 Commerce RoadAlice, TX 78332 USATel: 361-664-8013Fax: 361-664-0462

Manufacturing & EngineeringTexas8411 Irvington BoulevardHouston, TX 77022 USATel: 713-691-7800Fax: 713-691-7807

Box 18882810 Highway 135 NorthKilgore, TX 75662 USATel: 903-984-2553Fax: 903-984-7170

10720 West I-20 EastOdessa, TX 79765 USATel: 915-563-1173Fax: 915-563-1182

Box 159530444 Southwest FreewayRosenberg, TX 77471 USATel: 281-341-5365Fax: 281-344-1986

UtahBox 4821553 East Highway 40Vernal, UT 84078 USATel: 435-789-0670Fax: 435-789-6568

West VirginiaBox 927Route 2, Murphy Run RoadClarksburg, WV 26301 USATel: 304-622-4303Fax: 304-623-2174

Wyoming1283 N. Derrick DriveUnit 1, Box 2Casper, WY 82604-1887 USATel: 307-237-3100Fax: 307-237-2546

Canada9118 - 34A AvenueEdmonton, Alberta T6E 5P4CanadaTel: 780-702-5209Fax: 780-463-2348

DubaiP.O. Box 61490Round About No. 8Bldg. No. TA-06Jebel Ali, DubaiUnited Arab EmiratesTel: 971-4-833-8776Fax: 971-4-883-8795

GermanyEddesser Straße 131234 Edemissen BerkhöpenPostfach 31232GermanyTel: 49-5176-90326Fax: 49-5176-90532

IndonesiaCilandak Commercial EstateUnit 105Jl. Raya Cilandak KKOP.O. Box 7541Jakarta 12560, IndonesiaTel: 62-21-782-6088Fax: 62-21-782-6086

ScotlandKirkton AvenuePitmedden Road Industrial EstateDyce, Aberdeen AB21 0BFScotlandTel: 441-224-334800Fax: 441-224-723034

SingaporeUnit 1 Block 323Terrace WarehouseUntil Jan. 2003Loyang Offshore Supply BaseBox 5014Loyang Crescent,Singapore 508988Tel: 65-6542-5211Fax: 65-6542-8127

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