Double Block and Bleed Ball Valve
23 products found
A double block and bleed (DBB) ball valve is a high-integrity isolation assembly that integrates two independent inline seals and a central venting mechanism into a single, compact body. Designed to replace bulky multi-valve hooks, this configuration utilizes dual inline balls or specialized double-sealing trunnion seats to isolate upstream and downstream fluid pressures simultaneously. By facilitating secure, verifiable isolation, DBB assemblies protect personnel during line maintenance and prevent fluid cross-contamination. Engineered to standards like API 6D and ASME B16.34, they are critically specified across high-pressure gas distribution networks, offshore manifolds, and refinery storage systems. Sourcing managers and piping engineers can maximize pipeline safety and reduce installation weights by importing API 6D certified double block and bleed ball valves directly from elite manufacturers in China via our B2B commercial platform.
medvalve
DBB Trunnion Ball Valve, API 6D, ASME B16.34, BS 5351
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ASTM A182 F316L DBB Ball Valve, 1-1/2 IN, CL150, ASME B16.34
medvalve
API 6D DBB Ball Valve, ASTM A105, 2 Inch, 900 LB, RF
medvalve
Forged Steel Top Entry Ball Valve, 1/2-6 Inch, 150-2500 LB
medvalve
DBB Floating Ball Valve, 1/2-2 Inch, 150-2500 LB
medvalve
Top Entry Trunnion Ball Valve, DBB, 1/2-2 Inch, 150-2500 LB
medvalve
API 6D Fully Welded Ball Valve, 1/2-16 Inch, 150-900 LB
medvalve
Top Entry Trunnion Ball Valve, API 6D, 20IN, CL600, RF
medvalve
One-piece Flanged Ball Valve, 1/2-6 Inch, 150-2500 LB
medvalve
High Temperature Trunnion Ball Valve, 1/2-40 IN, CL150-2500
medvalve
Cryogenic Cast Steel Ball Valve, 1/2-40 Inch, 150-2500 LB
Bosseal Valves (Suzhou) Co., Ltd.
Modular Double Block & Bleed Ball Valve, 6 IN, 1500 LB, RTJ
Model Number: 6DBB15JLF2
Bosseal Valves (Suzhou) Co., Ltd.
ASTM A350 LF2 DBB Ball Valve, 2 Inch, 1500 LB, API 6D, RTJ
Model Number: 2DBB15JLF2
Bosseal Valves (Suzhou) Co., Ltd.
DBB Trunnion Ball Valve, API 6D, A105N, 2 Inch, CL150 LB, RF
Model Number: 181302001
Bosseal Valves (Suzhou) Co., Ltd.
Double Block Trunnion Ball Valve, API 6D, A182 F316, 12 Inch
Model Number: 181302008
Bosseal Valves (Suzhou) Co., Ltd.
Inconel 625 Trunnion-Mounted Ball Valves, DBB, 20 IN, 150 LB
Model Number: 181302012
Bosseal Valves (Suzhou) Co., Ltd.
Double Block and Bleed Ball Valve, A350 LF2, 2-1/2 IN, CL300
Model Number: 181302023
Bosseal Valves (Suzhou) Co., Ltd.
Double Block and Bleed Ball Valve, Inconel 625, 30 Inch, DBB
Model Number: 181302037
topper
API 6D Top Entry Trunnion Ball Valve, 20 Inch, 600 LB, RF
Model Number: MFRS-230823-BV-01
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Double Block & Bleed Ball Valve, ASTM A351 CF8M, 24IN, CL600
Model Number: MFRS-230907-TMBV-06
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Double Block & Bleed Ball Valve, 18 Inch, 300 LB, WCB, API 6D
Model Number: MFRS-240125-TMBV-03
Zhejiang Kosen Valve Co., Ltd.
Double Block and Bleed Ball Valve, API 6D, A105N, Customized
Model Number: KV-20250123-SDBV-01
topper
Double Block and Bleed Ball Valve, F316L, 3/4 X 1/2IN, CL600 X 800
Model Number: S FS BV 08
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