Large caliber worm gear eccentric hemispherical valve

Overview：

A large-diameter worm gear eccentric hemispherical valve refers to an eccentric hemispherical valve with a nominal diameter ≥ DN300 (12 inches) and driven by a worm gear transmission mechanism. Its essence is to solve the problem of large opening and closing torque of large-diameter valves through the deceleration and torque increasing characteristics of worm gears, while retaining the sealing and wear resistance advantages of eccentric hemispherical valves. This type of valve is commonly used in working conditions that require high flow cutoff, low automation, or manual emergency operation, such as municipal water supply and drainage main pipelines, oil and gas long-distance pipelines, metallurgical blast furnace gas pipelines, etc.

Nominal diameter：10mm～2000mm and 1/2"～80".

Working pressure：0.25MPa～76.0MPa/150Lb～4500Lb/10K～320K.

Adopting standards：GB, DIN, API, ANSI, JIS, BS, etc.

Drive mode：Manual, worm gear transmission, pneumatic, electric, hydraulic, etc.

Product materials：WCB、A105、CF8、F304、CF8M、F316、CF3、F304L、CF3M、F316L、CF8C、F347、F304H、F316H、F321H、4A、F51、5A、 Copper alloy, titanium alloy, Hastelloy alloy, nickel alloy, etc.