15
Soft Shift Directional Control Valve DG4S4-01-60-S*** Design 615 Revised 3/95 VICKERS ® Directional Controls

Catalogo Valvula Direccional

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Page 1: Catalogo Valvula Direccional

Soft Shift Directional Control ValveDG4S4-01-60-S*** Design

615Revised 3/95

VICKERS®

Directional Controls

Page 2: Catalogo Valvula Direccional

2

Table of Contents

Basic Characteristics 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting Interface 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seals & Fluid Cleanliness 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model Code 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Solenoids 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Data 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Response Time 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Orifice Changing Procedure 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Data 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Dimensions – Spring Offset 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Dimensions – Spring Centered 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Dimensions – Din43650 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Data 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DGVM*-5 Subplate 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 3: Catalogo Valvula Direccional

3

Introduction

The DG4S4-01-60-S*** directionalcontrol is a solenoid operated, 4-way,soft-shift valve having a uniquefive-chamber design.

The spool end land configurationisolates the core tube volume from thevalve’s tank cavity. This volume is

displaced through an orifice in eachsolenoid armature to increase the shiftand dropout periods.

System shock is greatly reduced bymetering the flow across the specialspool land as well as spool modulationproduced by the armature orifice.

The valve terminal box contains a bridgerectifier, allowing alternating current tobe applied directly to the valve.Therefore, the solenoid winding sensesonly direct current, eliminating the“in-rush” characteristic of a standard ACsolenoid.

Features & Benefits� Low cost alternative to pilot-operated

and proportional valves.

� Mounts interchangeable with anyNFPA D05, CETOP 5, ISO 05 valve.

� Conventional direct-solenoid operatedvalve design with contoured spool andcontrolled solenoid shift speed.

� Available in single or double solenoidconfigurations.

� Wet armature solenoids for quieteroperation and long life with nodynamic seals to leak.

� Rectifier is housed in the terminaljunction box and is protected frommoisture and dirt.

� Coil has plug-in construction and isheld on by a nut enabling quick coilvoltage interchange or service, withoutbreaking into the hydraulic envelope.

� DC solenoid prevents coil burnoutduring controlled rate of solenoid shift.Conventional alternating input currentis converted to direct current through arectifier located in the terminal box.For example: 110-120 50/60V AC and220-240 50/60V AC are converted to105V DC and 214V DC, respectively.

� A larger diameter spool combined withfive-chamber body core passagesresults in lower pressure drop.

� Milled metering notches on the spoolenable precise control of flow ratechange as the spool is shifted.

� Four-land spool permits manufacturingof a consistently rounder spool forbetter balance in the bore and lowerspool wear and less leakage.

� Five-chamber body design isolates thetank passages from the core tube sothat pressure spikes or surges are nottransmitted to the solenoid core tube.

� NFPA fatique pressure rated at 250bar (3600 psi)

� Easily interchangeable orifice plugsallow for fine tuning of valve shift timeto each application.

� Solenoid indicator lights are available.

Page 4: Catalogo Valvula Direccional

4

General Information

Basic CharacteristicsMax. pressure ports P, A & B:

Up to 250 bar (3600 psi) dependingon fluid

Max. pressure port T: 70 bar (1000 psi)

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Operating temp. 20° to 82° C(70° to 180° F)

Fluid viscosity 14-54 cSt . . (75-250 SUS)

Mounting InterfaceISO 4401-05CETOP 5NFPA D05

Seals & FluidCleanlinessFluorocarbon seals are standard andare suitable for use with phosphateester type fluids or its blends, waterglycol, water–in–oil emulsion fluids andpetroleum oil. Refer to 694 for hydraulicfluid and temperature recommendations.

Proper fluid condition is essential forlong and satisfactory life of hydrauliccomponents and systems. Hydraulicfluid must have the correct balance ofcleanliness, materials and additives forprotection against wear of components,elevated viscosity and inclusion of air.

Essential information on the correctmethods for treating hydraulic fluid isincluded in Vickers publication 561;“Vickers Guide to SystemicContamination Control,” available fromyour local Vickers distributor or bycontacting Vickers, Incorporated.

Recommended filtration and theselection of products to control fluidcondition are included in 561.

Recommended cleanliness levels usingpetroleum oil under common conditionsis based on the highest fluid pressurelevels in the system.

Directional controls, regardless ofmanufacturer, will operate with fluidsshowing a higher cleanliness code. Theoperating life of the control, and othercomponents in the system, will be lesshowever. For maximum life and bestsystem performance, cleanliness codesas defined below should be achieved.

Fluids other than petroleum, severeservice cycles or temperature extremesare cause for adjustment of thesecleanliness codes. See VickersPublication 561 for exact details.

Valves

System Pressure1000 psi 2000 psi 3000+ psi20/18/15 20/18/15 19/17/14

Spool notches

Metering orifice

D.C. solenoid

A.C. input

Rectifier

Spools with contoured or notched landsare used to provide maximum control of flowrate change as the spool is shifted.

Spool shift speed is controlled by a meteringorifice in the solenoid. Three orifice sizesare available to meet your application.

D.C. solenoids prevent coil burnout duringcontrolled rate of solenoid shift.

Conventional alternating current (120/60 or110/50) input is converted to D.C. through arectifier located in the terminal box.

Operating Principles

Page 5: Catalogo Valvula Direccional

5

Model Code

3 4 5 876 9 101 2 11 12

1

2

Seals

Blank – Standard sealsF3 – Special seals

Valve Type

D – Directional control valveG – Manifold or subplate mounted4 – Solenoid operatedS – Sliding spool4 – 4-way flow direction

Electrical Accessories

Blank - For “U” type connectorsW – Terminal boxLW – Terminal box with lights

Interface

01 – ISO-4401-AC-05-4-A,NFPA D05, CETOP 5

3

4

5

6

7

11

8

10

12

Spool Types

A models – 0, 2, 9B models – 0, 2, 6, 8C models – 0, 2, 6, 8

Spool/Spring Arrangement

A – Spring offset, P to AB – Spring centered, solenoid “a”

removedC – Spring centered, three position

Wet Armature Solenoid(s)(non-serviceable core tubes)

Blank – Plug-in coilsU – DIN 43650 coil(s)* without

electrical plug (non-rectified)U1 – Connector fitted (DC only)U6 – Connector fitted w/lights

(DC only)U11 – Connector fitted w/ rectifier

& lights (AC only)U12 – Connector fitted w/rectifier

Coil Identification Letter(s)(See “Solenoids” below)

Soft Shift Orifice

Blank – Standard (.047) **.062 – .062 inch.078 – .078 inch(see response times, page 7)

Design Number

Subject to change.Installation dimensions remain as shownfor designs 60 through 69.

Left-hand Assembly

Omit for right-hand assembly withsolenoid “a” removed.

Special Soft Shift Solenoids

S491 – Standard valveS528 – Canadian Standards Assoc. CSA

certification

* Note that the U type coils are non-rectified and require a connector with rectifierwhen using AC current. A non-rectified connector must be used when supplying DC current.

9

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** Not recommended for type 8 spool whenoperating at maximum flow and pressure.

Page 6: Catalogo Valvula Direccional

6

Operating Data

���������������������������Note When solenoid “a” is energized, flow is“P” to “A”. When solenoid “b” isenergized, flow is “P” to ”B”. This is inaccordance with the ANSI–B93.9 �������

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Functional Symbols

Solenoid EnergizingSpring centered and spring offset valveswill be spring positioned unless thesolenoid is energized continuously.

� NOTEAny sliding spool valve, if heldshifted under pressure for longperiods, may stick and not springreturn, due to silting. Therefore, it isrecommended that the valve becycled periodically to prevent thisfrom occurring.

Bleeding ProcedureApply a minimum of 3.4 bar (50 psi) tankpressure. Shift either solenoid “a” or“b”. Loosen manual actuators insolenoid ends until air is evacuated.Tighten manual actuators. No furtherbleeding should be required.

To fully utilize the features of the softshift solenoid, the core tubes mustremain full of oil. The tank line must beplumbed so that the tank port is alwaysflooded with oil. Addition of a backpressure check valve may be requiredto prevent bleed down.

Response TimeResponse times are increased over thatof a standard solenoid. These times areinfluenced by flow, pressure, appliedsolenoid voltage, oil and ambienttemperatures. Response times can befine tuned to the application by orificesthat are changeable via the manualactuator in the solenoid end.

The DG4S4-01**-60-S*** valve comeswith a .047 inch diameter orifice asstandard. A .062 and a .078 inch orificesare also available.

Response times shown below wereestablished with a system pressure of250 bar (3600 psi), flow of 38 l/min (10 USgpm), solenoid voltage at 100%of rating and 38° C (110° F) oiltemperature.

The given response times weremeasured from the point of energization/de-energization to the point of firstindication of inlet pressure change.

Response up to full system pressure isdependent on the system’s compressedvolume and can vary with eachapplication.

Orifice & Tool KitFor fine tuning shift performance,orifices must be ordered separately.The following kit comes with:

Two (2) .047, .062 and .078 inchdiameter orifices.One (1) Installation tool.One (1) 5/32” hex key.One (1) 3/32” hex key.

Order #02–119131

Page 7: Catalogo Valvula Direccional

7

Response Time / Orifice Changing Procedure

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Orifice ChangingProcedure

WARNING

Before breaking a circuitconnection make certain that poweris OFF and system pressure hasbeen released. Lower all verticalcylinders, discharge accumulatorsand block any load whosemovement could generate pressure.Plug all removed units and cap alllines to prevent the entry of dirt intothe system.

1. Using a 5/32” hex key, remove manualactuator plug and spring from the endof solenoid (Tightening torque 6.2-7.3Nm 55–65 lbf. in.)

2. Insert extraction tool (878495) intosolenoid via the manual actuatoropening. Rotate tool until aligned andpush into slot in armature.

3. Using 1/2” wrench and tool to preventthe armature from rotating, insert 3/32”hex key down the center of tool andremove orifice plug.

4. Replace by the same method, tightening orifice snug to ensurebottoming of threads. Smaller orificesincrease response times. Largerorifices decrease response times. The.047 in. dia. orifice is standard in the valve.

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Page 8: Catalogo Valvula Direccional

8

Performance Data

Pressure DropsThe pressure drop curves giveapproximate pressure drop (�P) whenpassing 21 cSt (100 SUS) fluid (having.865 specific gravity) through theindicated flow path.

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Page 9: Catalogo Valvula Direccional

9

Performance Data

Maximum Flow DataMaximum recommended flow data is for90% nominal voltage in a 4-way circuitwith cylinder ports either looped orblocked and containing 2,5 liter (.66USgpm) compressed volume.Performance may vary when certainspools are used in 3-way circuits.

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Page 10: Catalogo Valvula Direccional

10

Installation Dimensions

Spring offset Spring centeredMillimeters (inches)

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4 valve mounting holes for socket head cap screws -1/4 - 20 x 1 1/2 or M6x40 metric (torque 12-15 N.m., 110-130 in. lb.)

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Page 11: Catalogo Valvula Direccional

11

Installation Dimensions

Spring centeredMillimeters (inches)

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4 valve mounting holes for socket head capscrews - 1/4 - 20 x 1 1/2 or M6x40 metric (torque 12-15 N.m., 110-130 in. lb.)

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Page 12: Catalogo Valvula Direccional

12

Installation Dimensions

DIN 43650 Connector

Millimeters (inches)

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27(1.06)

22,5(0.88)∅

M3thread 5,5

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(Coils not rectified)12 and 24V DC only

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Page 13: Catalogo Valvula Direccional

13

Electrical Data

The DG4S4-01-60-S*** series valve is asolenoid operated directional controlvalve using special solenoids, a uniquespool configuration and a rectifierpackage.

Rated supply voltage is 120V AC/60 Hz.The rectifier package is enclosed withinthe terminal box and is protectedagainst electrical surges with a M.O.V.

Terminals 1 and 2 to solenoid “A” Terminals 3 and 4 to solenoid “B”

Remove screws to replace rectifier circuit board

Rectifier to convert A.C. supply voltageto D.C voltage

Page 14: Catalogo Valvula Direccional

14

DGVM*-5 Subplate

3 4 5 876 9 101 2

Model Code

1

2

Valve Type

DG - Directional control valve

Pressure Rating

V - 345 bar (5000 psi)

Subplate

M - Subplate

Ports

Blank - Back portsE - Side ports

3

4

5

6

7

10

Valve Size

5 - CETOP 5

Pipe Thread Size

Blank - 1/4 NPTF/BSPX - 3/8 NPTF/BSPY - 1/2 NPTF/BSPZ - 3/4 NPTF/BSP

Subplate Options

None provided

Modification

Design Number

10 - Design

Connection/Mounting

Blank - NPTF Thread connectionT** - SAE straight thread connection

with .250-20 UNC-2B inchthread mounting.

T10 - .8750-14 UNF-2B conn.T12 - 1.0625-12 UN-2B conn.C** - SAE straight thread connection

with M6 x 1.8 metric threadC10 - .8750-14 UNF-2B conn.C12 - 1.0625-12 UN-2B conn.

9

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Ordering InformationValves, subplates, connectors, and boltkits must be ordered as separate items.Example:

One (1)DG4S4-012C-BB-60-S491 valve

One (1)DGVME-5-10-SP-T10 subplate

One (1)BKDG01633 bolt kit

Torque SpecificationsMaximum recommended mounting bolttorque is 13 N.m. (115 lb. in.).

Page 15: Catalogo Valvula Direccional

15

Mounting Surface & Subplate Dimensions

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