Double Block & Bleed Ball Valve, DBB, 2-36 Inch, 150-1500 LB

Key Specifications / Features

Model No.: JSC-231124-SBV-44

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Explore our range of Double Block & Bleed Ball Valves – expertly manufactured in compliance with industry standards such as ASME B16.34, API 6D, and EEMUA 182. These valves, available in Forged and Cast Steel, feature a 3-Piece, Split Body design and come in sizes ranging from 2 to 36 inches. With Class ratings of 150 to 1500 LB and a Side Entry configuration, our valves provide reliable and efficient solutions for various applications.
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Detail Information

Double Block & Bleed Valve
 
Double Block & Bleed Valve can be made with full bore and reduced bore, as per option, can be made of forged steel and cast steel.
When the pipeline medium needs to be cut off, it is only necessary to rotate one of the balls to cut off the pipeline medium, and the other sphere can only act after the valve seat sealing component of the sphere fails.
The two ball bodies can also be operated alternately to achieve double insurance and double cut-off effects on pipelines. The two ball valves are integrally formed, so there is no need to adjust the flow center line of the two ball valves when installing,
It also reduces one connection point and one leakage point in the direct series installation of two ball valves, which is safe and reliable.
 
We also manufactures the following ball valves
Double Block & Bleed Ball Valve
Twin Ball Valve, Twin Balls Ball Valve
TWIN BALL DB&B VALVES
Double Block & Bleed Piping Ball Valves
DB&B VALVE Twin Ball design
DBB double ball valve


SIZE RANGE AND PRESSURE CLASS
 
Size from 2 Inch to 36 Inch (DN50-DN900)
Pressure from 150 LBS to 1500 LBS (PN16-PN240)


DESIGN STANDARDS
 
Design / Manufacture as per the standards: API 6D, ASME B16.34, DIN 3357, EN 13709, GB/T1 2237, BS 5351
Face to Face Length (Dimension) as per the standards: API 6D, ASME B16.10, EN 558-1, DIN3202, JIS B2002, MFG
Flanged Dimension according to the standards: ASME B16.5, EN 1092-1, BS 4504, DIN 2501,
Flanged to ASME B16.5 (2 - 24 Inch) and ASME B16.47 Series A / B (26 Inch and above) Clamp / Hub ends on request.
Testing according to the standards: API 598, API 6D, EN 12266-1, EN 1074-1, ISO 5208


TECHNICAL FEATURES
 
Three-piece,
split body, side entry design.
cavity pressure Self-relief
Reduced Port or Full Bore
Forged Steel or Cast Steel
Space and weight savings
Easy maintenance and handling
Available in Floating ball and trunnion mounted ball
Anti-Static Device
Anti-Blowout Stem Design
Executions available


CONSTRUCTION MATERIALS

General Cast Carbon Steel:
ASTM A216 WCB, WCC, WCA, GP240GH 1.0619 / GS-C25
ASTM A105, C22.8/ P250GH (1.0460/1.0432)
 
Low Temperature Carbon Steel (LTCS):
ASTM A352 LCB, LCC, LCA, GS-CK25
ASTM A350 LF2, TStE 355 / P355QH1 (EN 1.0571/1.0566)
 
Alloy Steel:
ASTM A352 LC1, LC2, LC2-1, LC3, LC4, LC9, ASTM A743 CA6NM
GS-CK16, GS-CK24, GS-10Ni6, GS-10ni14
ASTM A350 LF1, LF3, LF5, LF6, LF9, LF787
 
High Temperature Steel (Chrome Moly) / Alloy Steel:
ASTM A217 WC1, WC6, WC9, C5, C12, C12A
GS-22Mo4 / G20Mo5 (EN 1.5419), GS-17CrMo55 / G17CrMo5-5 (EN 1.7357)
ASTM A182 F1, 15Mo3 16Mo3 (EN 1.5415)
ASTM A182 F11, 13 CrMo 4 4 / 13CrMo4-5 (EN 1.7335)
ASTM A182 F22, 10CrMo 9 10 / 11CrMo9-10 (EN 1.7383/1.7380)
ASTM A182 F91, X10CrMoVNb9-1 (EN 1.4903)
 
Austenitic Stainless Steel / Alloy Steel:
UNS S30400, S30403, S30409, ASTM A351 CF8, CF3, CF10
G-X6CrNi189 / GX5CrNi19-10 (EN 1.4308)
UNS S31600, S31603, S31609, ASTM A351 CF8M, CF3M. CF10M
GX5CrNiMo19-11-2 / G-X6CrNiMo18.10 (EN 1.4408)
UNS S34700, S34709, ASTM A351 CF8C
G-X5CrNiNb189 / GX5CrNiNb19-11 (EN 1.4552)
AISI 316Ti, X6CrNiNo17122 / X6CrNiMoTi17-12-2 (EN 1.4571)
ALLOY 20 / UNS N08020, ASTM A351 CN7M
ASTM A182 F304 X5CrNi1810 / X5CrNi18-10 (EN 1.4301)
ASTM A182 F304L X2 CrNi 19 11 (EN 1.4306)
ASTM A182 F316 X5CrNiMo 17 12 2 / X5CrNiMo17-12-2 (EN 1.4401)
ASTM A182 F316L X2 CrNiMo 17 13 2 / X2CrNiMo17-12-2 (EN 1.4404)
ASTM A182 F316 Ti X6 CrNiMoTi 17 12 2 / X6CrNiMoTi17-12-2 (EN 1.4571)
ASTM A182 F321 X6 CrNiTi 18 10 / X6CrNiTi18-10 (EN 1.4541)
ASTM A182 F347 X6CrNiNb1810 / X6CrNiTi18-10C (EN 1.4550)
ASTM A182 F44 (6MO) (EN 1.4547)
ASTM A182 F20 * (ALLOY 20)
 
Ferritic-Austenitic / Duplex / Super Duplex Stainless Steel:
UNS S31803 / S32205 (Duplex 2205), ASTM A890/A995 GR.4A (UNS J92205) / A351 CD3MN
UNS S32750 (Super Duplex 2507), ASTM A890 / A995 GR.5A / A351 CE8MN (CD4MCu)
UNS S32760, ASTM A890 / A995 GR.6A (CD3MWCuN)
ASTM A182 F51, X2 CrNiMoN 22 5 3 / X2CrNiMoN22-5-3 (EN 1.4462)
ASTM A182 F52 (EN 1.4460)
ASTM A182 F53, X2CrNiMoCuN 25.6.3 (EN 1.4410)
ASTM A182 F55, X2CrNiMoCuWN 25.7.4 (EN 1.4501)
ASTM A182 F60 (EN 1.4462)
 
Other Materials:
Alloy 20 ASTM B462 / UNS N08020
Monel 400 / UNS N04400 ASTM B564-N04400 / A494 M35-1 NiCu30Fe (EN 2.4360)
Nickel Alloy 904L / UNS N08904 X1NiCrMoCu25.20.5 (EN 1.4539)
Inconel 625 / UNS N06625 / ASTM B564-N06625 / ASTM A494-CW6MC
NiCr22Mo9Nb (EN 2.4856)
Inconel 825 / UNS N08825 / ASTM B564-N08825 / ASTM A494 CU5MCuC (EN 2.4858)
NiCr21Mo (EN 2.4858)

 

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