3pc Forged Steel Trunnion Mounted Ball Valve

3pc Forged Steel Trunnion Mounted Ball Valve
Design Feature   
Full port or reduce port
Fire safe certified
Double block & bleed
Emergency sealant injection
Cavity pressure self relief
Blowout-proof stem
Antic-static
Optional double piston design

3 PC Side Entry
Size ：1-1/2~60”(DN40~DN1500)
Rating ：150~2500LB（PN16~PN420）
Body Materials ：Forge Carbon Steel, Stainless Steel, Duplex Steel
Trim ：Carbon Steel, Stainless Steel, Duplex Steel

Applications: 
Gas Production, Gasoline, Offshore, Oil Production, Oil Transportation, Drilling and Production, 
Petrochemical Processing, Petroleum Distribution, Petroleum Production and Refining
Industries: 
Gas Treatment, Oil and Gas
Standards: 
ASME (ANSI), ISO, ISO 9001:2000
Misc: 
Tops valve designed the Side-Entry Trunnion-Mounted Ball Valves to assure bi-directional 
sealing of the valve with two independent floating seats. The design of these seats minimizes 
the torque required to operate the valve without losing the sealing power. This power is assured 
by zero differential pressure to the valve's maximum rated pressure. In addition, these repairable 
valves are manufactured to seal off both seats at the same time and to allow bleeding of the entrapped 
cavity pressure (DBB) with the ball in the closed position. The DBB feature allows for verifying that 
the seats are properly sealing.   
Features
Trunnion-mounted ball: Features a fixed ball and floating seat rings. Bearings absorb the side load generated 
by the pressure acting on the ball. 
Independent ball and stem: The ball and stem are independent to minimize the effect of side thrust from 
pressure acting on the ball.
Double block and bleed (DBB): Both seats hold their respective pressure independently of the body cavity 
pressure, which is ideal to verify that the seats are sealing. 
Soft-seated valves: In valves designed for standard service, a resilient material is inserted into the metal seat 
holder to provide a soft-seating action in addition to the metal-to-metal seating between the ball and seat rings.
Self-relieving seat rings- two seat rings assure bi-directional sealing of the valves.
Anti-blowout stem maintained because the stem is retained by the stem cover. 
Optional features
Emergency sealant injection stem seals and seat face
Metal seated valves
Double piston effect seats 
Extended stem and fittings for below ground service
Numerous types of body, trim, seal area overlay and seal materials available  

Tops Valve Manufacturing Co., Ltd , established in 1999 , covers an area of 13,186 square meters, & sales in China. TOPS is specialized in Gate valve, Globe valve, Check valve, Ball valve, Butterfly valve and strainers etc. which range over different materials of CS, LTCS, SS, DSS, ALLOY S etc. and standards of ANSI, DIN, BS, JIS, and GB etc.,Surely, we are API6D,API600,API607,ISO9001,CE,etc.certified and especially got national patent for the special butterfly valve which is triple-eccentric with 0 sealing leakage for both sealing sides.Our products are largely exported all over the world such as ASEAN, Europe, North and South America, Middle East, Africa and so on.Due to our unity and coordination?s work team, TOPS effectively guarantees the product?s performance, quality and delivery, and has widely won the favor of customers.Today TOPS valve has been widely used in domestic and international large-scale petroleum, chemical, electric power, iron and steel, shipbuilding, water treatment and oil fields. We expect to control costs, provide better customer service and create a bright future![ Buying Categories ] - Hardware >> Valves