Trunnion Mounted Ball Valve

Trunnion Mounted Ball Valve

SQ trunnion mounted ball valves are offered in 2 PC side entry, 3 PC side entry design , top entry , fully welded type in a wide range of carbon and stainless steel ，alloy steel, duplex stainless steel , Monel material.  SQ trunnion ball valves are manufactured according to DIN, JIS and API standards.

PRODUCT RANGE

· 2” to 56” ANSI 150-600

· 2” to 24” ANSI 900-1500

· 2” to 12” ANSI 2500

AVAILABLE MATERIALS

BODY Materials: Stainless Steel (CF8M), Carbon Steel (WCB) & Special Alloys, Low Temperature Carbon Steel(LCC, LCB), Duplex Stainless Steel, Super Duplex Stainless Steel, Monel, A105, LF2, F316, F304, F51, F55

· Seat Materials: PTFE, NYLON, DEVLON, 316, 304, Stellited 6

· DESIGN FEATURES

· Full or Reduced Bore

· RF, RTJ, BW 

·  Side entry, top entry, or welded body design

· Double Block & Bleed (DBB)，Double Isolation & Bleed (DIB)

· Emergency seat and stem injection

· Anti-Static Device

· Cryogenic or High Temperature Extended Stem

DESIGN STANDARD

· Design & manufacture according to API 6D,

·  Face-to-face according to API 6D, ASME B16.10

· End Connection according to ASME B16.5, ASME B16.25

· Test & inspection according to API 6D, API 598

· Fire safe design according to API 6FA, API 607

· Also available per NACE MR-0175, NACE MR-0103, ISO 15848

Trunnion Mounted Valve Features

1. The ball is fixed it does not float. The ball is centered by the stem at the top and trunnion at the bottom.

2. Automatic pressure relief function: the valve body cavity remain medium temperature caused when abnormal pressure, without going through the safety valve, and can function alone automatic pressure relief valve, which valve to ensure safety in the transportation of liquid medium very important.

3. Fire safety design: valves are equipped with fire safety features, its design and manufacture are to follow API 607 and API 6FA specifications. advantage 1, the sealing grease Emergency Ambulance: Due to foreign matter or medium fire accidents caused by failure of the valve seat seal, greasing valve provides a fast connection to the grease gun, pump quickly and easily import sealant is injected into the seating area, alleviate leakage. 2, reliable stem sealing and low operating torque: In addition to setting the standard outer sealing ring, packing gland also set O-ring seal to ensure a double stem seal reliability; addition of graphite filler and sealant stem leakage after injection so that the fire to a minimum. Stem sliding bearings and thrust bearings so that the valve is easy to operate. 

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