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Floating seat ball valve

ball valve can be designed into a soft or hard seal structure as required by working conditions or users. With its unique hard surface treatment technology, hard seal V-type ball valve is more applicable for media containing impurities. Its reasonable flow channel design prevents materials from accumulation. According to practical working conditions, can provide the floating seat V-type ball valve and the eccentric V-type ball valve.

Floating seat ball valve

QYI metal hard seal ball valve

QYI integrated forged valve adopts a one-piece body structure without leakage points in the middle. With its advanced forging process, its packing design is more reasonable, thus ensuring its zero leakage. This valve series is especially applicable for harsh working conditions, like high temperature, high pressure and severe erosion, in the power industry. Its unique structural design and hardening treatment technology of sealing surface ensure its safety,

QYI metal hard seal ball valve

Floating Ball Valve

Floating Ball ValvesA floating ball valve is a valve with its ball floating (not fixed by a trunnion) inside the valve body, it drifts toward to the downstream side and tightly pushes against the seat under the medium pressure to ensure sealing reliability. The floating ball valve has simple structure, good sealing performance but the seat material is required to withstand the workload since the sealing pressure is bared by the seat ring. Due to unavailability of high performance seat material,

Floating Ball Valve

Trunnion Mounted Ball Valves

Ball of trunnion ball valve is fixed, it does not move with medium pressure. Trunnion ball valve has floating seats. The seats move with the medium pressure to tight the ball and seal ring to ensure sealing reliability. Bearings could be mounted in top shaft and bottom shaft, which reduces operation torque. This is widely used in valves with high pressure and big sizes. To decrease the operation torque and increase sealing reliability, lubricated ball valves are adopted in recent years.

Trunnion Mounted Ball Valves

WCB 2PC Flanged Ball Valve

Name: WCB 2PC Flanged Ball Valve Detailed Product Description:CLASS 150~300 FLOATING BALL VALVETwo-piece Body,Floating Ball,Buint-in ISO5211 direct mounting padFull silicasol technologyFull or Reduced bore,Blowout Proof StemFire safe and Anti staticAnti-static devices for ball-stem bodyDouble stem sealing to comply with TA-LUFT requirementsPre-Load 2 belleville washer to self-adjust packingCarton Steel Material WCB Stainless steelCF8(304) CF3(304L) CF8M(316) CF3M(316L)

WCB 2PC Flanged Ball Valve

Full welded ball valve

Full welded ball valve For the purpose of preventing the stem from flying off  resulting in abnormal rising of the inner pressure of valve,shoulder is fixed at the lower part of the stem.In addition,in order to prevent leakage resulting from burnout of packing set of the stem in a fire,thrust bearing is set at the contact position of the shoulder at lower part of the stem and valve body.Thus an inverse seal seat is formed which will prevent leakage and avoid accident.
Full welded ball valve
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