Cut-off Valve Working Principle
- Aug 28, 2017 -

The cut-off valve only one-way flow of media, the installation of directional. The structure length of the cut-off valve is larger than the gate valve, while the fluid resistance is large and the sealing reliability is not strong in the long run.

Cut-off valve is divided into three categories: straight-through cut-off valve, right-angle-type cut-off valve and DC-type oblique cut-off valve.

The most obvious advantage is: in the opening and closing process, because the disc and valve body sealing surface between the friction than the gate valve smaller, and thus wear-resistant. The opening height is generally only 1/4 of the diameter of the seat channel, so it is much smaller than the gate valve. Usually there is only one sealing surface on the valve body and disc, so the manufacturing process is better and convenient for maintenance.

Cut-off valve nominal pressure or pressure level: PN1.0-16.0MPa, ansiclass150-900, jis10-20k, nominal path or caliber: dn10~500, nps1/2~36 ", cut-off valve connection: flange, butt welding, thread, applicable temperature: -196℃~700℃, stop valve Drive mode: manual, bevel gear transmission, pneumatic, electric, hydraulic, gas-liquid linkage, electro-hydraulic linkage, valve body material: WCB, Zg1cr18ni9ti, Zg1cr18ni12mo2ti, CF8 (304), CF3 (304L), cf8m (316), cf3m (316L), Ti. The cut-off valve chooses different material.


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