Gate valve is the most common kind of industrial valve, widely used in petroleum, petrochemical, power station, long-distance pipeline and shipbuilding and other industrial fields. As a fluid control device, the gate valve opening and closing part is the gate plate, wh…

01 Why is the two-seat valve easy to oscillate when working with small opening?For a single core, when the medium is flow open, the valve stability is good; When the medium is flow closed type, the stability of the valve is poor. The double-seat valve has two spool, t…

Valve body blank heat treatment process according to different materials are as follows:1. Heat treatment of gray cast ironIn order to achieve different purposes, gray cast iron can be subjected to different heat treatments after casting. In the production of valve, th…

Causes of ball valve internal leakage1. Reasons for internal leakage of the valve during the construction period:① Improper transportation and hoisting causes the overall damage of the valve, resulting in internal leakage of the valve;② When leaving the factory, the …

Eccentrichemispherical valve is a commonly used control valve, whose main function is to control the flow rate and pressure of the fluid. Its working principle is to control the flow rate and pressure of the fluid by rotating the hemispherical valve core, thereby achie…