DOUBLE BLOCK & BLEED VALVE CONTENTS INTRODUCTION 2 ... · Instrument Valve DOUBLE BLOCK & BLEED VALVE CONTENTS INTRODUCTION 2 APPLICATION & INSTALLATION 3 SPECIFICATION 4-7 Ball Valve

Instrument Valve

DOUBLE BLOCK & BLEED VALVE CONTENTS

INTRODUCTION 2

APPLICATION & INSTALLATION 3

SPECIFICATION 4-7Ball ValveOS & Y type Globe ValveNeedle type Globe ValvePressure & Temperature Ratings

PRODUCT INDEX 8-9

DBB VALVES 10-23Dimensions Details

ROOT VALVES 25-30Dimensions Details

ORDERING INFORMATION 31

DOUBLE BLOCK & BLEED VALVE INTRODUCTION

Why use a Double Block and Bleed valve?

Double Block and Bleed valves have evolved to replace theprocess of bolting together individual valves to provide dualisolation.This new assembly provides great savings in weight, spaceand installation times especially in instrument or instrumentcage isolation. These savings can be as much as 60% in weightand studies have shown that a 70% installation time saving isalso possible. However the greatest savings are to be seen inthe reduction of leak paths to atmosphere, thereforereducing the risk of the potential hazards this entails.Dual isolation is a necessary requirement whenmaintenance is taking place down stream of the rstisolation valve. Cavity venting is provided by eithera ball or globe OS&Y vent valve so that trappedpressure between the two isolation valves is safelyvented.These valves have also evolved to encompass thefunction of chemical injection (using a suitable quill)and sample points. In-built check valves are often integrated inthese valves.

Manufactured in accordance with all recognised standards including EEMUA 182 latest revision, API6D,API607,BS6755PT2, API up to 10000 and 15000 PSI

Trunnion mounted, oating ball, and variants of gate, globe check and ball Special designs including injection quills, sample probes, double block and single block, in-built check valves

and seat wipers Tested to TUV low emission standards, including cyclical testing at -46 deg C to +200 deg C Supplied to all major oil companies including over 2000 trunnion mounted valves to PDO Oman.

Double Block and Bleed valve

2

ConventionalAssembly

DBB ValveAssembly

Root ValveAssembly

Wall Thickness - ASME B 16.34 Flange Dimensions - ASME B 16.5 Flange Face Raised face & Ring type joint Threads - ASME B 1.20.1 Fire tested - API 607 (ISO 10497) Fugitive Emission - ISO 15842 (MESC 77/312) Antiblowout Valve Stems Nonerotating Needle Optional locking / Anti temper arrangement for

Needle valve

Design Construction Direct Flange Mounting Reduced Height & Weight Reduced No. of Joints & Potential Leak Path Single Piece, Compact Design Reduced Effect of System Vibration

Stresses In Built Swivel Connector Reduced Installation Cost & Time Flange Connection size 1/2” to 3” NB Optional Material on Request Bore size 3/8” to 2”

Feature

Purpose

Astec Double block & bleed valve is designed to replace conventional multiple-valve installations currently inuse for interface with pressure measuring systems. By combining customer specied valves into a single DBB,the number of leak path is considerably reduced and the mass of the system is lowered reducing the stressesfrom loading and vibration. The result of which substantially improves instillation and operational safetyfactors. Reduction in leakage path connections together with a one-piece solution also provides positiveinstillation cost savings & time.

APPLICATION & INSTALLATION

3

Instrument Valve

Block & Bleed Valves

Two piece body design - minimize leakagepaths.

Designed to comply with requirements ofANSI/ASME B16.34.

Bi-directional. Ball seats choice of seat materials :

PTFE(virgin or lled)PVDF , NYLON orPEEK.

Floating ball principal with dynamicresponse seats featuring inherent self relief.

Integral compression ends availableeliminating taper threads and threadsealants.

Firesafe designed to meet BS 6755 Part2 /API 607,(optional).

4

1

4

6

7

8

9

11

10

13

2

5

12

3

14

Sr. No. PART DESCRIPTION

1

2

3

4

5

6

7

8

9

BALL SEAT

BALL

BODY

LOWER STEAM PACKING

STEM

BODY SEAL

OUTLET CONNECTOR

STOPPER

HANDLE

11

12 PACKING GLAND

STOPPER PIN

10

UPPER STEM PACKING

13

14

SEAT RETAINER

STEM NUT

Features

Blow proof One piece stem spindle.

Fully supported ball seats minimize seat extrusion andallow high working pressures.

Super nish ball for low operating torque and long life.

End adaptor threads are fully isolated from process byprimary and secondary static seals.

Spindle locknut is vibration resistance to avoid workingloose.

10mm bore fully roddable.

Anti-static design as standard.

Pressure rating up to 10,000 psig [680 barg].

Temperature rating -71°F to 482°F [-57°C to +230°C].

Pressure and Temperature Ratings


12

3

4

5

6

7

8

9

BONNET

SPINDLE TIP

BODY

GLAND PACKING

GLAND WASHER

HAND WHEEL

DOME NUT

GLAND

DUST CAP

11

12

BODY SEAL

SPINDLE

10

GLAND NUT & BOLT

13 BONNET BOLT

Instrument Valve

Outside Screw & Yoke (OS&Y) Needle Valve

1

2

3

4

5

6

7

8

9

10

12

11

13

Externally adjustable gland. PTFE or Graphite packing for bubble tight

sealing. Stem tip construction : Non rotating, Self-

centering, Anti-galling tip positive bubble-tight and eld interchangeable tip.

All components stainless steel. Flange gasket seal ensures a bubble-tight

between body and yoke. Back seat design provides secondary stem

sealing and prevents stem blow out. Rolled stem operating threads. Independent stem thread bush with

maximum female thread interface. Colour coded close contact dust cup and

function label for easy identication.

Features

5

Non rotating Tip for repetitive bubbel-tight shutoff.

Bolted bonnet for strength and reliability.

Stem packing with Graphite or PTFE rings for bubble-tightseal.

Adjustable gland ange/follower allows easy access tothe packing gland, which can be replaced while the valve is

under pressure. This design provides consistent packing adjustment for an effective stem seal.

Weather-resistant plastic cap prevents stem lubricantcontamination.

Handle assembly utilizes locking bolt and will not vibrateor work loose.

Flange gasket ring ensures a bubbletight seal betweenbody and bonnet.

Rolled stem threads prevent galling. Stem threads arecompletely isolated from the process.

Back seat design provides secondary stem sealing andprevents stem blowout.

Pressure rating up to 6000 psig [414 barg].


Instrument Valve

Needle Valve Type Globe Valve

1

2

3

5

6

7

8

9

11

10

12

Rolled stem threads prevent galling. Stemthreads are completely isolated from theProcess.

Stem tip construction : Non rotating, Self-centering, Anti-galling tip positive bubble-tight and eld interchangeable tip.

Gland packing in PTFE or Graphite forbubble tight sealing.

Colour coded close contact dust cup andfunction label for easy identication.

Bonnet pusher with easy access. Lock nut for vibration protection. Orice size 4 to 5mm. Temperature rating -70.6° F to 1022° F (-57°

C to 550° C). Anti-Temper bonnets are available with a

removable T-bar key to preventunauthorized operation of vent valves.

6

4

13

14


12

3

4

5

6

7

8

9

BONNET

SPINDLE TIP

BODY

PACKING

PACKING WASHER

HANDLE

BODY SEAL

BONNET PUSHER

DUST CAP

11

12

SPACER

ALLEN BOLT

10

LOCK NUT

13 LOCKING PLATE

14 SPINDLE

Features

Non rotating Tip for repetitive bubble-tight shutoff.

Rolled stem threads for low operating torque and longcycle life. Stem threads are locked above the spindlepacking and are completely isolated from the process.

Stem packing with Graphite or PTFE rings for bubble-tightseal.

Body -to-Boonet metal pressure seal below threadsprevents process from corroding bonnet retention threadsand ensure the bonnet threads are in loaded compressionfor additional strength.

Weather-resistant plastic cap prevents stem lubricantcontamination.

Handle assembly utilizes locking bolt and will not vibrateor work loose.

Flange gasket ring ensures a bubbletight seal betweenbody and bonnet.

Back seat design provides secondary stem sealing andprevents stem blowout.

Adjustable gland follower allows easy access to adjustthe packing gland.

4 to 5mm bore.

Pressure rating up to 10,000 psig [680 barg].


Pressure and Temprature Ratings

Outside Screw & Yoke (OS&Y) Needle Valve

Needle Valve Type Globe Valve

Instrument Valve 7

Instrument Valve 8

Single Block and Bleed ValveModel No. :- SBB-FBNT

Flange x Thread1st Isolate :- Ball

Drain :- Needle

Double Block and Bleed ValveModel No. :- DBB-FBNBT


2nd Isolate :- BallDrain :- Needle

Double Block ValveModel No. :- DB-FBBT


2nd Isolate :- Ball

Double Block ValveModel No. :- DB-FBNT


2nd Isolate :- Needle

Double Block and Bleed ValveModel No. :- DBB-FBNNT


2nd Isolate :- NeedleDrain :- Needle

Single Block and Bleed ValveModel No. :- SBB-FBNF

Flange x Flange1st Isolate :- Ball

Drain :- Needle

Double Block ValveModel No. :- DB-FBBF


2nd Isolate :- Ball

Double Block and Bleed ValveModel No. :- DBB-FBNBF


2nd Isolate :- BallDrain :- Needle

Double Block and Bleed ValveModel No. :- DBB-FBNNF



Double Block ValveModel No. :- DB-FBNF


2nd Isolate :- Needle

DOUBLE BLOCK & BLEED VALVE PRODUCT INDEX

Instrument Valve 9

OS&Y Type Double Block and Bleed ValveModel No. :- DBB-FPPNT

Flange x Thread1st Isolate :- OS&Y

2nd Isolate :- OS&YDrain :- Needle

OS&Y Type Double Block and Bleed ValveModel No. :- DBB-FPPNF

Flange x Flange1st Isolate :- OS&Y

2nd Isolate :- OS&YDrain :- Needle

Needle Type Double Block and Bleed ValveModel No. :- DBB-FNNNT

Flange x Thread1st Isolate :- Needle


Needle Type Double Block and Bleed ValveModel No. :- DBB-FNNNF

Flange x Flange1st Isolate :- Needle


DOUBLE BLOCK & BLEED VALVE PRODUCT INDEX

Instrument Valve 10

Note : - 1) End Connection of different size can be provided on request. 2) Dimension in millimeter are for reference only and are subject to change

L

150 90 60.3 4 15.9 1/2 106300 95 66.7 4 15.9 1/2 109600 95 66.7 4 15.9 1/2 116

900/1500 120 82.6 4 22.2 3/4 1242500 135 88.9 4 22.2 3/4 132150 100 69.9 4 15.9 1/2 108300 115 82.6 4 19.1 5/8 111600 115 82.6 4 19.1 5/8 117

900/1500 130.0 88.9 4 22.2 3/4 1272500 140 95 4 22.2 3/4 133150 110.0 79.4 4 15.9 1/2 109300 125.0 88.9 4 19.1 5/8 113600 125.0 88.9 4 19.1 5/8 119

900/1500 150.0 101.6 4 25.4 7/8 1302500 160 107.4 4 25.4 7/8 136150 125.0 98.4 4 15.9 1/2 113300 155 114.3 4 22.2 3/4 116600 155 114.3 4 22.2 3/4 124

900/1500 180 123.8 4 28.6 1 1332500 205 146 4 31.8 1 1/8 146150 150 120.7 4 19.1 5/8 114300 165 127 8 19.1 5/8 117600 165 127 8 19.1 5/8 127

900/1500 215 165.1 8 25.4 7/8 1402500 235.0 171.4 8 28.6 1 152

Flange Size(Inch) Flange Class

Out SideDiameter of

FlangeØ D (mm)

Diameterof BoltCircleØ W

No. of BoltsDiameter ofBolt Holes(mm)

Diameterof Bolts(Inch)

TOTAL LENGTH(L)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)

1/2(DN 15)

Single Block and Bleed ValveModel No:- SBB-FBNTFlange x Thread1st Isolate :- BallDrain :- Needle

SBB VALVE

Instrument Valve 11


L

150 90 60.3 4 15.9 1/2 116300 95 66.7 4 15.9 1/2 119600 95 66.7 4 15.9 1/2 126

900/1500 120 82.6 4 22.2 3/4 1342500 135 88.9 4 22.2 3/4 142150 100 69.9 4 15.9 1/2 118300 115 82.6 4 19.1 5/8 121600 115 82.6 4 19.1 5/8 127

900/1500 130.0 88.9 4 22.2 3/4 1372500 140 95 4 22.2 3/4 143150 110.0 79.4 4 15.9 1/2 119300 125.0 88.9 4 19.1 5/8 123600 125.0 88.9 4 19.1 5/8 129

900/1500 150.0 101.6 4 25.4 7/8 1402500 160 107.4 4 25.4 7/8 146150 125.0 98.4 4 15.9 1/2 123300 155 114.3 4 22.2 3/4 126600 155 114.3 4 22.2 3/4 134

900/1500 180 123.8 4 28.6 1 1432500 205 146 4 31.8 1 1/8 156150 150 120.7 4 19.1 5/8 124300 165 127 8 19.1 5/8 127600 165 127 8 19.1 5/8 137

900/1500 215 165.1 8 25.4 7/8 1502500 235.0 171.4 8 28.6 1 162

1/2(DN 15)

1 1/2(DN 40)

1(DN 25)

3/4(DN 20)

2(DN 50)

Flange Size(Inch)

Flange Class

Out SideDiameter of

FlangeØ D (mm)

Diameter ofBolt CircleØ W

No. ofBolts

Diameter ofBolt Holes(mm)

Diameter ofBolts(Inch)

TOTAL LENGTH(L)

Double Block ValveModel No:- DB-FBNTFlange x Thread1st Isolate :- Ball2nd Isolate :- Needle

DB VALVE

Instrument Valve 12

150 90 60.3 4 15.9 1/2 141300 95 66.7 4 15.9 1/2 144600 95 66.7 4 15.9 1/2 151

900/1500 120 82.6 4 22.2 3/4 1592500 135 88.9 4 22.2 3/4 167150 100 69.9 4 15.9 1/2 143300 115 82.6 4 19.1 5/8 146600 115 82.6 4 19.1 5/8 152

900/1500 130.0 88.9 4 22.2 3/4 1622500 140 95 4 22.2 3/4 168150 110.0 79.4 4 15.9 1/2 144300 125.0 88.9 4 19.1 5/8 148600 125.0 88.9 4 19.1 5/8 154

900/1500 150.0 101.6 4 25.4 7/8 1652500 160 107.4 4 25.4 7/8 171150 125.0 98.4 4 15.9 1/2 148300 155 114.3 4 22.2 3/4 151600 155 114.3 4 22.2 3/4 159

900/1500 180 123.8 4 28.6 1 1682500 205 146 4 31.8 1 1/8 181150 150 120.7 4 19.1 5/8 149300 165 127 8 19.1 5/8 152600 165 127 8 19.1 5/8 168

900/1500 215 165.1 8 25.4 7/8 1752500 235.0 171.4 8 28.6 1 187

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)

1/2(DN 15)



TOTAL LENGTH(L)

Flange Size(Inch)

Flange Class

Out SideDiameter of

FlangeØ D (mm)


No. of Bolts


L

Double Block ValveModel No:- DB-FBBTFlange x Thread1st Isolate :- Ball2nd Isolate :- Ball

DB VALVE

Instrument Valve 13

150 90 60.3 4 15.9 1/2 154300 95 66.7 4 15.9 1/2 157600 95 66.7 4 15.9 1/2 163

900/1500 120 82.6 4 22.2 3/4 1712500 135 88.9 4 22.2 3/4 179150 100 69.9 4 15.9 1/2 155300 115 82.6 4 19.1 5/8 158600 115 82.6 4 19.1 5/8 165

900/1500 130.0 88.9 4 22.2 3/4 1742500 140 95 4 22.2 3/4 181150 110.0 79.4 4 15.9 1/2 157300 125.0 88.9 4 19.1 5/8 160600 125.0 88.9 4 19.1 5/8 167

900/1500 150.0 101.6 4 25.4 7/8 1782500 160 107.4 4 25.4 7/8 184150 125.0 98.4 4 15.9 1/2 160300 155 114.3 4 22.2 3/4 163600 155 114.3 4 22.2 3/4 171

900/1500 180 123.8 4 28.6 1 1812500 205 146 4 31.8 1 1/8 194150 150 120.7 4 19.1 5/8 162300 165 127 8 19.1 5/8 165600 165 127 8 19.1 5/8 174

900/1500 215 165.1 8 25.4 7/8 1872500 235.0 171.4 8 28.6 1 200


TOTAL LENGTH(L)


Flange Size(Inch)

Flange Class

Out SideDiameter of

FlangeØ D (mm)

Diameter ofBolt CircleW

No. of Bolts

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)

L


Double Block & Bleed ValveModel No:- DBB-FBNBTFlange x Thread1st Isolate :- BallDrain :- Needle2nd Isolate :- Ball

DBB VALVE

Instrument Valve 14

150 90 60.3 4 15.9 1/2 151300 95 66.7 4 15.9 1/2 154600 95 66.7 4 15.9 1/2 161

900/1500 120 82.6 4 22.2 3/4 1692500 135 88.9 4 22.2 3/4 177150 100 69.9 4 15.9 1/2 153300 115 82.6 4 19.1 5/8 156600 115 82.6 4 19.1 5/8 162

900/1500 130.0 88.9 4 22.2 3/4 1722500 140 95 4 22.2 3/4 178150 110.0 79.4 4 15.9 1/2 154300 125.0 88.9 4 19.1 5/8 158600 125.0 88.9 4 19.1 5/8 164

900/1500 150.0 101.6 4 25.4 7/8 1752500 160 107.4 4 25.4 7/8 181150 125.0 98.4 4 15.9 1/2 158300 155 114.3 4 22.2 3/4 161600 155 114.3 4 22.2 3/4 169

900/1500 180 123.8 4 28.6 1 1782500 205 146 4 31.8 1 1/8 191150 150 120.7 4 19.1 5/8 159300 165 127 8 19.1 5/8 162600 165 127 8 19.1 5/8 172

900/1500 215 165.1 8 25.4 7/8 1852500 235.0 171.4 8 28.6 1 197

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)


Out SideDiameter of

FlangeØ D (mm)




TOTAL LENGTH(L)


Double Block & Bleed ValveModel No:- DBB-FBNNTFlange x Thread1st Isolate :- BallDrain :- Needle2nd Isolate :- Needle

L

DBB VALVE

Instrument Valve 15

150 90 60.3 4 15.9 1/2 131300 95 66.7 4 15.9 1/2 134600 95 66.7 4 15.9 1/2 141

900/1500 120 82.6 4 22.2 3/4 1492500 135 88.9 4 22.2 3/4 157150 100 69.9 4 15.9 1/2 133300 115 82.6 4 19.1 5/8 136600 115 82.6 4 19.1 5/8 142

900/1500 130.0 88.9 4 22.2 3/4 1522500 140 95 4 22.2 3/4 158150 110.0 79.4 4 15.9 1/2 134300 125.0 88.9 4 19.1 5/8 138600 125.0 88.9 4 19.1 5/8 144

900/1500 150.0 101.6 4 25.4 7/8 1552500 160 107.4 4 25.4 7/8 161150 125.0 98.4 4 15.9 1/2 138300 155 114.3 4 22.2 3/4 141600 155 114.3 4 22.2 3/4 149

900/1500 180 123.8 4 28.6 1 1582500 205 146 4 31.8 1 1/8 171150 150 120.7 4 19.1 5/8 139300 165 127 8 19.1 5/8 142600 165 127 8 19.1 5/8 152

900/1500 215 165.1 8 25.4 7/8 1652500 235.0 171.4 8 28.6 1 177


Out SideDiameter of

FlangeØ D (mm)




TOTAL LENGTH(L)

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)


Double Block & Bleed ValveModel No:- DBB-FNNNTFlange x Thread1st Isolate :- NeedleDrain :- Needle2nd Isolate :- Needle

L

DBB VALVE

Instrument Valve 16

150 90 60.3 4 15.9 1/2 151300 95 66.7 4 15.9 1/2 154600 95 66.7 4 15.9 1/2 161

900/1500 120 82.6 4 22.2 3/4 1692500 135 88.9 4 22.2 3/4 177150 100 69.9 4 15.9 1/2 153300 115 82.6 4 19.1 5/8 156600 115 82.6 4 19.1 5/8 162

900/1500 130.0 88.9 4 22.2 3/4 1722500 140 95 4 22.2 3/4 178150 110.0 79.4 4 15.9 1/2 154300 125.0 88.9 4 19.1 5/8 158600 125.0 88.9 4 19.1 5/8 164

900/1500 150.0 101.6 4 25.4 7/8 1752500 160 107.4 4 25.4 7/8 181150 125.0 98.4 4 15.9 1/2 158300 155 114.3 4 22.2 3/4 161600 155 114.3 4 22.2 3/4 169

900/1500 180 123.8 4 28.6 1 1782500 205 146 4 31.8 1 1/8 191150 150 120.7 4 19.1 5/8 159300 165 127 8 19.1 5/8 162600 165 127 8 19.1 5/8 172

900/1500 215 165.1 8 25.4 7/8 1852500 235.0 171.4 8 28.6 1 197

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)


Out SideDiameter of

FlangeØ D (mm)




TOTAL LENGTH(L)


Double Block & Bleed ValveModel No:- DBB-FPPNTFlange x Thread1st Isolate :- OS&YDrain :- Needle2nd Isolate :- OS&Y

L

DBB VALVE

Instrument Valve 17


L

150 90 60.3 4 15.9 1/2 117300 95 66.7 4 15.9 1/2 124600 95 66.7 4 15.9 1/2 136

900/1500 120 82.6 4 22.2 3/4 1522500 135 88.9 4 22.2 3/4 168150 100 69.9 4 15.9 1/2 121300 115 82.6 4 19.1 5/8 127600 115 82.6 4 19.1 5/8 140

900/1500 130.0 88.9 4 22.2 3/4 1592500 140 95 4 22.2 3/4 171150 110.0 79.4 4 15.9 1/2 124300 125.0 88.9 4 19.1 5/8 130600 125.0 88.9 4 19.1 5/8 143

900/1500 150.0 101.6 4 25.4 7/8 1652500 160 107.4 4 25.4 7/8 178150 125.0 98.4 4 15.9 1/2 130300 155 114.3 4 22.2 3/4 136600 155 114.3 4 22.2 3/4 152

900/1500 180 123.8 4 28.6 1 1712500 205 146 4 31.8 1 1/8 197150 150 120.7 4 19.1 5/8 133300 165 127 8 19.1 5/8 140600 165 127 8 19.1 5/8 159

900/1500 215 165.1 8 25.4 7/8 1842500 235.0 171.4 8 28.6 1 210


Out SideDiameter of

FlangeØ D (mm)


No. ofBolts



TOTAL LENGTH(L)

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)

Single Block and Bleed ValveModel No:- SBB-FBNFFlange x Flange1st Isolate :- BallDrain :- Needle

SBB VALVE

Instrument Valve 18


L

150 90 60.3 4 15.9 1/2 127300 95 66.7 4 15.9 1/2 134600 95 66.7 4 15.9 1/2 146

900/1500 120 82.6 4 22.2 3/4 1622500 135 88.9 4 22.2 3/4 178150 100 69.9 4 15.9 1/2 131300 115 82.6 4 19.1 5/8 137600 115 82.6 4 19.1 5/8 150

900/1500 130.0 88.9 4 22.2 3/4 1692500 140 95 4 22.2 3/4 181150 110.0 79.4 4 15.9 1/2 134300 125.0 88.9 4 19.1 5/8 140600 125.0 88.9 4 19.1 5/8 153

900/1500 150.0 101.6 4 25.4 7/8 1752500 160 107.4 4 25.4 7/8 188150 125.0 98.4 4 15.9 1/2 140300 155 114.3 4 22.2 3/4 146600 155 114.3 4 22.2 3/4 162

900/1500 180 123.8 4 28.6 1 1812500 205 146 4 31.8 1 1/8 207150 150 120.7 4 19.1 5/8 143300 165 127 8 19.1 5/8 150600 165 127 8 19.1 5/8 169

900/1500 215 165.1 8 25.4 7/8 1942500 235.0 171.4 8 28.6 1 220

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)


Out SideDiameter of

FlangeØ D (mm)




TOTAL LENGTH(L)

Double Block ValveModel No:- DB-FBNFFlange x Flange1st Isolate :- Ball2nd Isolate :- Needle

DB VALVE

Instrument Valve 19


L

150 90 60.3 4 15.9 1/2 152300 95 66.7 4 15.9 1/2 159600 95 66.7 4 15.9 1/2 171

900/1500 120 82.6 4 22.2 3/4 1872500 135 88.9 4 22.2 3/4 203150 100 69.9 4 15.9 1/2 156300 115 82.6 4 19.1 5/8 162600 115 82.6 4 19.1 5/8 175

900/1500 130.0 88.9 4 22.2 3/4 1942500 140 95 4 22.2 3/4 206150 110.0 79.4 4 15.9 1/2 159300 125.0 88.9 4 19.1 5/8 165600 125.0 88.9 4 19.1 5/8 178

900/1500 150.0 101.6 4 25 .4 7/8 2002500 160 107.4 4 25.4 7/8 213150 125.0 98.4 4 15.9 1/2 165300 155 114.3 4 22.2 3/4 171600 155 114.3 4 22.2 3/4 187

900/1500 180 123.8 4 28.6 1 2062500 205 146 4 31.8 1 1/8 232150 150 120.7 4 19.1 5/8 168300 165 127 8 19.1 5/8 175600 165 127 8 19.1 5/8 194

900/1500 215 165.1 8 25.4 7/8 2192500 235.0 171.4 8 28.6 1 245

Flan ge S ize(In ch ) Flan ge Class

Ou t S id eD iam eter o f

F lan g eØ D (m m )

Diametero f Bo ltCirc leW

No . o fBo lts

D iameter o fBo lt Ho les(mm )

D iametero f Bo lts(In ch )

TOTA LLENGTH(L)

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)

Double Block ValveModel No:- DB-FBBTFlange x Flange1st Isolate :- Ball2nd Isolate :- Ball

DB VALVE

Instrument Valve 20

L


150 90 60.3 4 15.9 1/2 165300 95 66.7 4 15.9 1/2 171600 95 66.7 4 15.9 1/2 184

900/1500 120 82.6 4 22.2 3/4 2002500 135 88.9 4 22.2 3/4 216150 100 69.9 4 15.9 1/2 168300 115 82.6 4 19.1 5/8 174600 115 82.6 4 19.1 5/8 187

900/1500 130.0 88.9 4 22.2 3/4 2062500 140 95 4 22.2 3/4 219150 110.0 79.4 4 15.9 1/2 171300 125.0 88.9 4 19.1 5/8 178600 125.0 88.9 4 19.1 5/8 190

900/1500 150.0 101.6 4 25.4 7/8 2132500 160 107.4 4 25.4 7/8 225150 125.0 98.4 4 15.9 1/2 178300 155 114.3 4 22.2 3/4 184600 155 114.3 4 22.2 3/4 200

900/1500 180 123.8 4 28.6 1 2192500 205 146 4 31.8 1 1/8 244150 150 120.7 4 19.1 5/8 181300 165 127 8 19.1 5/8 187600 165 127 8 19.1 5/8 206

900/1500 215 165.1 8 25.4 7/8 2322500 235.0 171.4 8 28.6 1 257

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)


TOTALLENGTH(L)


Flange Size(Inch)

Flange Class

Out SideDiameter of

FlangeØ D (mm)


No. ofBolts

Double Block & Bleed ValveModel No:- DBB-FBNBFFlange x Flange1st Isolate :- BallDrain :- Needle2nd Isolate :- Ball

DBB VALVE

Instrument Valve 21


L

150 90 60.3 4 15.9 1/2 162300 95 66.7 4 15.9 1/2 169600 95 66.7 4 15.9 1/2 181

900/1500 120 82.6 4 22.2 3/4 1972500 135 88.9 4 22.2 3/4 213150 100 69.9 4 15.9 1/2 166300 115 82.6 4 19.1 5/8 172600 115 82.6 4 19.1 5/8 185

900/1500 130.0 88.9 4 22.2 3/4 2042500 140 95 4 22.2 3/4 216150 110.0 79.4 4 15.9 1/2 169300 125.0 88.9 4 19.1 5/8 175600 125.0 88.9 4 19.1 5/8 188

900/1500 150.0 101.6 4 25.4 7/8 2102500 160 107.4 4 25.4 7/8 223150 125.0 98.4 4 15.9 1/2 175300 155 114.3 4 22.2 3/4 181600 155 114.3 4 22.2 3/4 197

900/1500 180 123.8 4 28.6 1 2162500 205 146 4 31.8 1 1/8 242150 150 120.7 4 19.1 5/8 178300 165 127 8 19.1 5/8 185600 165 127 8 19.1 5/8 204

900/1500 215 165.1 8 25.4 7/8 2292500 235.0 171.4 8 28.6 1 255

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)

Flange Size(Inch)

Flange Class

Out S ideDiameter of

FlangeØ D (mm)


No. ofBolts



TOTALLENGTH(L)

Double Block & Bleed ValveModel No:- DBB-FBNNFFlange x Flange1st Isolate :- BallDrain :- Needle2nd Isolate :- Needle

DBB VALVE

Instrument Valve 22

L


150 90 60.3 4 15.9 1/2 142300 95 66.7 4 15.9 1/2 149600 95 66.7 4 15.9 1/2 161

900/1500 120 82.6 4 22.2 3/4 1772500 135 88.9 4 22.2 3/4 193150 100 69.9 4 15.9 1/2 146300 115 82.6 4 19.1 5/8 152600 115 82.6 4 19.1 5/8 165

900/1500 130.0 88.9 4 22.2 3/4 1842500 140 95 4 22.2 3/4 196150 110.0 79.4 4 15.9 1/2 149300 125.0 88.9 4 19.1 5/8 155600 125.0 88.9 4 19.1 5/8 168

900/1500 150.0 101.6 4 25.4 7/8 1902500 160 107.4 4 25.4 7/8 203150 125.0 98.4 4 15.9 1/2 155300 155 114.3 4 22.2 3/4 161600 155 114.3 4 22.2 3/4 177

900/1500 180 123.8 4 28.6 1 1962500 205 146 4 31.8 1 1/8 222150 150 120.7 4 19.1 5/8 158300 165 127 8 19.1 5/8 165600 165 127 8 19.1 5/8 184

900/1500 215 165.1 8 25.4 7/8 2092500 235.0 171.4 8 28.6 1 235

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)

Flange Size(Inch)

Flange Class

Out SideDiameter of

FlangeØ D (mm)


No. ofBolts



TOTAL LENGTH(L)

Double Block & Bleed ValveModel No:- DBB-FNNNFFlange x Thread1st Isolate :- NeedleDrain :- Needle2nd Isolate :- Needle

DBB VALVE

Instrument Valve 23


L

150 90 60.3 4 15.9 1/2 162300 95 66.7 4 15.9 1/2 169600 95 66.7 4 15.9 1/2 181

900/1500 120 82.6 4 22.2 3/4 1972500 135 88.9 4 22.2 3/4 213150 100 69.9 4 15.9 1/2 166300 115 82.6 4 19.1 5/8 172600 115 82.6 4 19.1 5/8 185

900/1500 130.0 88.9 4 22.2 3/4 2042500 140 95 4 22.2 3/4 216150 110.0 79.4 4 15.9 1/2 169300 125.0 88.9 4 19.1 5/8 175600 125.0 88.9 4 19.1 5/8 188

900/1500 150.0 101.6 4 25 .4 7/8 2102500 160 107.4 4 25.4 7/8 223150 125.0 98.4 4 15.9 1/2 175300 155 114.3 4 22.2 3/4 181600 155 114.3 4 22.2 3/4 197

900/1500 180 123.8 4 28.6 1 2162500 205 146 4 31.8 1 1/8 242150 150 120.7 4 19.1 5/8 178300 165 127 8 19.1 5/8 185600 165 127 8 19.1 5/8 204

900/1500 215 165.1 8 25.4 7/8 2292500 235.0 171.4 8 28.6 1 255


Out SideD iameter of

FlangeØ D (mm)

Diameterof BoltCircleW

No. ofBolts



TOTALLENGTH(L)

1/2(DN 15)

3/4(DN 20)

1(DN 25)

1 1/2(DN 40)

2(DN 50)

Double Block & Bleed ValveModel No:- DBB-FPPNFFlange x Thread1st Isolate :- OS&YDrain :- Needle2nd Isolate :- OS&Y

DBB VALVE

Documents

DOUBLE BLOCK & BLEED VALVE CONTENTS INTRODUCTION 2 ... · Instrument Valve DOUBLE BLOCK & BLEED VALVE CONTENTS INTRODUCTION 2 APPLICATION & INSTALLATION 3 SPECIFICATION 4-7 Ball Valve