The ASME Trunnion Type Ball Valve (BS5351/API 6D) is engineered for high-pressure and large-diameter applications. Unlike floating ball valves, the ball is fixed by a trunnion (lower support), allowing the seats to move against the ball. This reduces operating torque and minimizes seat wear. Built to ASME Class 150-300, it features a double block and bleed (DBB) design, making it the industry standard for safe isolation in oil, gas, and petrochemical pipelines.
Technical Attribute Table: ASME Trunnion Ball Valve (Class 150-300)
1,Design Standard,API 6D / ASME B16.34 / BS 5351
2,Face-to-Face,ASME B16.10
3,Pressure Class,Class 150 / Class 300
4,Body Material,ASTM A216 WCB / A105 / LCB / CF8M
5,Ball Type,Trunnion Mounted (Fixed Ball)
6,Nominal Size,2" to 24" (Larger sizes available)
7,Seat Type,Spring-Loaded / Self-Relieving Seats
8,Sealing Feature,Double Block and Bleed (DBB)
9,Bore Type,Full Port (Standard) or Reduced Port
10,Fire Safe Design,API 607 / API 6FA Certified
11,Stem Design,Blow-out Proof Stem
12,Anti-Static,Built-in Anti-static Device
13,Emergency Seal,Sealant Injection Fittings (Stem & Seats)
14,Operation,Gearbox / Pneumatic / Electric Actuator
15,Mounting Pad,ISO 5211
16,Working Temp.,−46℃ to +200℃ (Soft) / +450℃ (Metal)
17,Shell Test,1.5× Design Pressure
18,Seat Test,1.1× Design Pressure (High/Low)
19,Flange End,ASME B16.5 (RF / RTJ)
20,Vent & Drain,Standard NPT Drain/Vent Valves
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
