Advantages and disadvantages of high pressure gate valve and classification
Classification:
Release Time：2021-05-21
The type of high-pressure gate valve according to the position of the stem thread is divided into external thread type, internal thread type, flange, welding and so on. According to the flow direction of the medium, there are straight-through, DC and angular. High pressure gate valve is mainly divided into the following categories: JB/T2203-1999 "gate valve structure length" based on the general class.
Advantages of high pressure gate valve
The high-pressure gate valve has simple structure, convenient manufacture and maintenance. The working stroke is small and the opening and closing time is short. Good sealing performance, small friction force between sealing surfaces and long service life.
Disadvantages of high pressure gate valve
The fluid resistance is large, and the force required for opening and closing is large. It is not suitable for medium with particles, high viscosity and easy coking.
The type of high-pressure gate valve according to the position of the stem thread is divided into external thread type, internal thread type, flange, welding and so on. According to the flow direction of the medium, there are straight-through, DC and angular. High pressure gate valve is mainly divided into the following categories: JB/T2203-1999 "gate valve structure length" based on the general class. According to the shell/body material classification, the gate valve can be divided:
1. Metal valves: such as carbon steel valves, alloy steel valves, stainless steel valves, cast iron valves, titanium alloy valves, copper alloy valves, aluminum alloy valves, lead alloy valves, etc.
2. Metal valve body lining valves: such as rubber-lined valves, fluorine-lined valves, lead-lined valves, plastic-lined valves, enamel-lined valves.
3. Non-metallic material valves: such as ceramic valves, glass valves, plastic valves.
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