Trunnion Mounted Ball Valves

 

Trunnion mounted ball valves are an excellent choice for on/off service in large high pressure applications because the ball is secured at the top and bottom of the design. Ball valves are designed in accordance with ASME B16.34 and API 608, API 6D or BS EN ISO 17292 where applicable.

The trunnion ball valve is a form of quarter-turn valve that uses a hollow, perforated, and fixed/supported ball to control the flow through it.

Trunnion mounted valves mean that the ball is bearing constrained and only allowed to rotate, with most of the hydraulic load being supported by the system constraints, resulting in low bearing stresses and no shaft fatigue. Line pressure drives the upstream valve seat against the retaining ball so that line pressure pushes the upstream valve seat against the ball to seal it.

 

» Size Ranges: 1/2" through 40"

» Pressure Ratings: ANSI #150 to 2500

» Standards compliance: API 6D, BS 5351, ASME B16.34, DIN 3202 or equivalents

» Materials: Forged Carbon Steel, Stainless Steel, Duplex or Other Specials

» Ends Connections: Flanged R.F, RTJ, Welded or Victaulic

» Optional Locking Device or Stem Extension

» Optional Direct Mounting to ISO 5211

» Full Port or Regular Bore

» Double Block and Bleed

 

 

Design	API 6D - ASME B16.34 - ISO 17292 - API 608
Inspection & testing	API 598
Marking	MSS SP-25
Rating	ASME B16.34 With possible derating for high temperature based on seat material.
Fugitive emission	ISO 15848

 

 

 

Face to face	ASME B16.10
End to end	Manufacturer standard or ASME B16.10
Socket weld	ASME B16.11
Screwed ends (NPT)	ASME B1.20.1
Flanged ends	ASME B16.5
Butt welding ends	ASME B16.25

 

 

 

GNEE Group was established in 2008, with 15 years of production experience and 10 years of export experience. As a well-known steel supplier in China, GNEE Group provides customers with more convenient one-stop services. We provide various types of valve products, such as stainless steel ball valves, butterfly valves, check valves, etc., all produced in accordance with national standards and American standards. GNEE supports customers in conducting third-party inspections. You are welcome to consult at any time.

 

 

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