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Double Block and Bleed Valves

Double Block and Bleed Valves
Double Block and Bleed Valves
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Product Code : 02
Brand Name : YDB VALVES LLP
Price And Quantity
  • Minimum Order Quantity
  • 10 Piece/Pieces
  • Price
  • 20000 INR
Product Specifications
  • Application
  • Industrial
  • Size
  • 1/2 - 2 Inches
  • Type
  • Double Block Bleed Valve
Product Description

Double Block & Bleed Valves

At YDB Valves, we engineer high quality double block and bleed valves customized to match process requirements. All double block and bleed valves at YDB valves are manufactured under control of ISO 9001 to ensure process integrity.

Why YDB Double Block and Bleed Valves Are Preferred by Customers?

Double block and bleed (DBB) valves provide a single valve that can simultaneously cut off/isolate the downstream and upstream systems. In the block and bleed configuration, needle valves or ball valves are used as drain valves or bleed valves while ball valves are used as isolation or block valves.

Double block and bleed valves provide positive shut-off and zero leakage which makes them ideal for product metering, product isolation, aviation fueling, blending, tagout/lockout, tank storage, product manifolds and other applications.

Double block and bleed valves are designed and manufactured according to API 6D/6A, ASME B16.34, NACE MR0175, API 598, API 607 and API 6FA. Each double block and bleed valve is 100% factory tested and approved for use in industrial and commercial applications.

In order to specify a double block and bleed valve, you must have an understanding of your outcome. Selecting the valves for your project can be challenging. YDB valves can help you choose the right valve for your application.

Advantages of Double Block and Bleed Valves

Double block and bleed valves are ideal for critical processes and widely used for hazardous fluids and high pressure systems. Applications where double block and bleed valves and double block and bleed ball valves are used include gauge isolation, chemical seal isolation, chemical injection connection, chemical instrument isolation, direct mounting of instruments, sample connection, gauge isolation remote mounting of instruments and instrumentation drain.

Double block and bleed valves reduce costs of installation and allow fewer potential paths for leakage compared to traditional valve installations. Double block and bleed valves complete the work that would normally require three separate valves - one drain and two isolation - which means that less space is required for them. Some other advantages of installing double block and bleed valves are:

  • Reduced bolting and gasket
  • Reduced system vibrations
  • Supporting brackets aren't required
  • Design becomes more compact
  • Increased system reliability
  • Improved personnel and plant safety

Design Range

Pressure Class :

  • YDB double block and bleed valves can handle pressure up to 10000 psi.
  • Class 150 to 2500

Double Block and Bleed Valves Catalogue

We offer several configurations in our double block and bleed valves. Some of our double block and bleed valves are:

  • Double Block and Bleed Ball Valves
  • Double Block and Bleed Needle Valves
  • Integral Block and Bleed Valves

Double-Block-and-Bleed-Valves

Features :

  • Compact ball valve/needle valve and OS&Y assembly in one DBB.
  • Working pressure up to 10,000 Psig (690 Bar).
  • Every valve is subject to a pressure test in accordance with the standard API 598 or BS 6755 part 1.
  • NPT Threaded connection to ANSI/ASME B1.20.1.
  • Pressure rating as per ASME B16.34 Class 150 thru 2500.
  • Anti-Static device is set between the stem and ball.
  • Fire tested as per BS6755 part 2/API 607.
  • Wetted components of sour gas service valve are selected as per requirements of NACE MR01-75/ISO 15156.
  • Flange construction as per the requirement of ASME B16.5. Flange connections comply with EN 1092-1 are also available upon request.
  • Reduced potential leak paths with primary & secondary isolation in one valve.

Ordering Information :

BV05 - Ball Valve Series 05

A. Valve Series

  • 05 - Single Piece Forged Body
  • 10FB - Three Piece Bolted Body Full Bore
  • 10RB - Three Piece Bolted Body Reduce Bore

B. Bore Size

Designator

Size

1

9.5 mm (3/8")

2

14 mm (1/2")

3

19 mm (3/4")

4

25 mm (1")

5

38 mm (1 ½")

6

42 mm (1- 11/16")

7

50 mm (2")

C. Seats, Body Seals, Stem seal

  • D - PEEK, Graphite, PTFE
  • E - PEEK, PTFE, PTFE
  • F - PEEK, VITON, PTFE

D. Process Connection Flange Size

Designator

Size

8

1/2

12

3/4

16

1

24

1-1/2

32

2

48

3

E. ASME Class Rating

Flange Class

Designator

Class Rating

150

150

300

300

600

600

900

900

1500

1500

2500

2500

F. Process Inlet Connection Type

  • A - Flange, RF Smooth
  • B - Flange, Concentric Serrated
  • C - Flange, RTJ

G. Outlet Connection

  • 8N - 1/2 Female NPT (9.5mm & 14mm Bore Only)
  • 12N - 3/4 Female NPT (9.5mm & 14mm Bore Only)
  • F - Flange (Same as Process)

H. Material

  • S - SS316
  • C - Carbon Steel
  • D - Duplex
  • M - Monel
  • I - Inconel

I. Bleed Connection

  • 4 - 1/4" Female NPT
  • 8 - 1/2" Female NPT

Ball Valve

  • Needle Valve
  • DBB-05 Series
  • DBB-10 Series

Ball Valve - Specification

FEATURES :

  • Quarter turn positive stop handle with protective sleeve.
  • Micro-Finished ball for long service life.
  • Anti-static design.
  • Bottom loaded stem prevents stem blowout and enhances system safety.
  • High strength stem bearing provides smooth actuation and eliminates galling between valve stem and body.
  • Pressure rating upto 10,000 psig (690 Bar).
  • Temperature rating upto -65oF to 450oF (-54oC to 232oC)

Material of construction:

No.

Component

Material of Constructions

SS316 SS316L

Carbon steel A105

Duplex

Inconel 625

1.

Body

SS316 SS316L

Carbon steel A105

Duplex

Inconel 625

2.

End connector

SS316 SS316L

Carbon steel A105

Duplex

Inconel 625

3.

Ball

SS316 SS316L

SS316 SS316L

Duplex

Inconel 625

4.

Stem

SS316 SS316L

SS316 SS316L

Duplex

Inconel 625

5.

Seat retainer

SS316 SS316L

SS316 SS316L

Duplex

Inconel 625

6.

Handle & stop pin


SS304


7.

Lock nut


SS316


8.

Disc spring


Inconel X750


9.

Stem packing


PTFE Graphite


10.

Stem bearing


PTFE


11.

Seat


PTFE Peek


12.

Retainer O'ring


Viton


13.

Gasket


PTFE


Needle Valve - Specification

Needle-Valve-Model

FEATURES :

  • Standard non-rotating free swivel stem tip.
  • Upper stem thread lubricant is isolated from system fluid.
  • Non-rotating lower stem avoid galling damage to the seat and tip, as well as reduces the total friction area between the packing and lower stem.
  • Back seating design provides secondary stem sealing and prevents stem blowout.
  • Adjustable gland flange allows packing adjustment.
  • Stem packing below thread design prevent media contamination and thread lubrication washout.
  • Pressure rating upto 10,000 psig (690 Bar)
  • Temperature rating are as follows:
    • PTFE: -65oF to 450oF (-54oC to 232oC)
    • Graphite: -65oF to 1200oF (-54oC to 649oC)

Material of construction :

No.

Component

Material of Constructions

SS316 SS316L

Carbon steel A105

Duplex

Inconel 625



1.

Body

SS316 SS316L

Carbon steel A105

Duplex

Inconel 625

2.

Lower Bonnet

SS316 SS316L

Carbon steel A105

Duplex

Inconel 625

3.

Packing Bolt

SS316 SS316L

Carbon steel A105

Duplex

Inconel 625

4.

Stem Tip

SS316 SS316L

SS316 SS316L

Duplex

Inconel 625

5.

Stem

SS316 SS316L

SS316 SS316L

Duplex

Inconel 625

6.

Washer

SS316 SS316L

SS316 SS316L

Duplex

Inconel 625

7.

Handle


SS316



8.

Lock Nut


SS316



9.

Locking pin


SS316



10.

Cap


PVC



11.

Screw


SS 316



12.

Packing


PTFE Graphite



DBB-05 SERIES

  • 14mm BORE
  • Single Piece Forged
  • Raised Face (RF) Flange Process Connections.
  • To 1/2in. Female NPT Outlet Connections.
  • For 9.5 And 14mm Bore Sizes
  • Raised Face (RF) Flange Process
  • And Outlet Connections All Bore Sizes.
  • DBB-05-Series-9-5mm-bore

SIZE

CLASS

DIMENSION

FLANGE

FLANGE/NPT

A(RF)

A(RTJ)

A(FLANGE/NPT)

B

C

1

150

231

231

197

108

79.2

7.7

3.9

300

241

241

197

124

88.9

8.8

4.3


600

241

241

203

124

88.9

8.8

4.5


900/1500

261

261

203

149.3

101.6

12.7

6.8


2500

273

273

203

158.8

108

16.5

8.1


1-1/2

150

241

241

207

127

98.6

9.1

4.9

300

251

251

207

155.4

114.3

12.3

6.4


600

251

251

215

155.4

114.3

12.3

6.9


900/1500

291

291

215

177.8

123.9

17.7

9.8


2500

316

316

220

203.2

146.1

27

14


2

150

241

213

210

152.4

120.7

10.9

5.9

300

261

241

210

165.1

127

14.1

7.5


600

261

261

220

165.1

127

14.1

8.4


900/1500

306

306

220

215.9

165.1

26.6

14


2500

346

346

230

235

171.5

37.8

22.1


DIMENSIONS ARE FOR REFERENCE ONLY AND ARE SUBJECT TO CHANGE

DBB-05 SERIES

9.5mm Bore

14mm Bore

19mm Bore


DBB-10 SERIES
FULL BORE (FB)

THREE PIECE, BOLTED BODY.

RAISED FACE (RF) OR RTJ FLANGE PROCESS AND OUTLET CONNECTIONS.

DBB-10-Series-Full-Bore

SIZE

BORE (MM)

CLASS

DIMENSION

WEIGHT(KG)

A(RF)

A(RTJ)

B

C

1/2


150

235

248

88.9

60.5

8.5


300

241

254

95.2

66.5

9.5


14

600

254

254

95.2

66.5

10



900/1500

287

287

120.6

82.5

13



2500

303

303

133.4

88.5

16


3/4


150

264

277

98.6

69.9

9.5


300

277

290

117.3

82.5

10.5


19

600

290

290

117.3

82.5

11



900/1500

320

320

130

88.9

16



2500

333

333

139.7

95.3

19


1


150

272

285

108

79.2

15


300

279

292

124

88.9

16.7


25

600

292

292

124

88.9

17.5



900/1500

364

364

149.3

101.6

21.2



2500

377

377

158.8

108

24.2


1-1/2


150

361

374

127

98.6

24.7


300

367

384

155.4

114.3

27.1


38

600

384

384

155.4

114.3

27.9



900/1500

402

402

177.8

123.9

35.1



2500

463

466

203.2

146.1

45.5


2


150

390

403

152.4

120.7

48.2


300

398

411

165.1

127

50.3


50

600

416

419

165.1

127

51.1



900/1500

481

484

215.9

165.1

66.8


42

2500

652

655

235

171.5

150


DBB-10 SERIES:

  • Full Bore (FB)
  • Reduce Bore (RB)
Trade Information
  • Payment Terms
  • Cash in Advance (CID), Cash Advance (CA)
  • Supply Ability
  • 10 Pieces Per Day
  • Delivery Time
  • 1 Week
  • Packaging Details
  • Carton Box
  • Main Export Market(s)
  • Africa, Middle East, Western Europe, Eastern Europe, South America, North America, Central America, Australia, Asia
  • Main Domestic Market
  • All India

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