Structural principles and classification of high-pressure valve
High-pressure valve has rotated 90 degrees action, cock body is a sphere, round holes or channels through its axis. Valve in the pipeline is mainly used for cutting, distribution and change the flow direction of the medium, and it requires an operation with rotated 90 degrees and a small torque can be closed tightly. Most suitable valve do switch off the valve, but the recent development has been designed to make it a ball and control the flow of the throttle, such as V-ball.
Classification and characteristics of high-pressure valve:
Ball points are: floating ball valve, fixed ball valve, track ball, V-ball valve, ball valve, stainless steel ball valves, forged steel ball valve, cinder valve, anti-sulfur ball valve, ball valve, pneumatic valve, electric ball, card sets ball, welded ball valve.
High-pressure valve works:
The main features of the high-pressure valve is its own compact, reliable sealing, simple structure, easy maintenance, and spherical sealing surface often in the closed state, the media can not easily be eroded, easy operation and maintenance for water, solvents, acids, and natural gas and other general working medium, but also for the poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene, in various sectors has been widely used. Ball valve can be integral, or may be modular.
It has a high-pressure valve is rotated 90 degrees action, cock body is a sphere, round holes or channels through its axis. Valve in the pipeline is mainly used for cutting, distribution and change the flow direction of the medium, and it requires an operation with rotated 90 degrees and a small torque can be closed tightly. Most suitable valve do switch off the valve, but the recent development has been designed to make it a ball and control the flow of the throttle, such as V-ball.
Pressure valve advantages:
1. Fluid resistance, full bore valve basically no flow resistance.
2. Simple structure, small size and light weight.
3. Compact and reliable. It has two sealing surface, and valve sealing surface material widely used kinds of plastic, sealing, and can be completely sealed. In the vacuum system has also been widely used.
4. Easy to operate, opening and closing rapidly, from fully open to fully closed as long as the rotation of 90 ¡ã, to facilitate remote control.
5. Easy maintenance, simple ball valve, seals are generally activities, the removal replacement is more convenient.
6. When fully open or fully closed, the sealing surface and the dielectric isolation ball and seat, through the media, will not cause erosion of the valve sealing surface.
7. Wide range of applications, from small diameter to a few millimeters to a few meters from high vacuum to high pressure can be applied.
8. Because there are wiping ball in opening and closing process, it can be used for media with suspended solid particles.
By shell / body material classification, ball can be divided into:
1. Metal Material Valve: Valve as carbon steel, alloy steel valves, stainless steel valves, cast iron valves, titanium valves, Monel valves, copper alloy valves, valve aluminum, lead alloy valves.
2. Metal valve body lining: as rubber lined valves, lined valves, lead-lined valves, lined valves, lined valves enamel.
3. The non-metallic materials valves: such as ceramic valves, glass valves, plastic valves.