First, be sure to check before installation Check carefully that the valve type and specifications meet the drawing requirements. Check the valve stem and disc opening for flexibility, jamming and skewing. Check the valve for damage and whether the threaded valve thread is positive and intact. Check that the combination of the valve seat and […]
A safety valve is a valve-type overpressure relief device consisting of three main parts: seat, disc and loading mechanism. It is an automatic valve that USES the pressure of the medium itself to discharge a nominal amount of overpressure fluid through the opening of the disc to prevent the pressure in the device from exceeding […]
In general, strength tests of industrial valves are not taken during use, but the valve body and bonnet that are corroded or repaired should take strength tests. For safety valves, the constant pressure, return pressure and other tests should comply with the specifications and relevant regulations. Valve strength and seal tests should be performed on […]
What is an angle valve? The angle valve is an angle stop valve. The angle valve is similar to a ball valve. Its structure and characteristics are corrected by the ball valve. The difference from a ball valve is that the outlet of the angle valve is at a right angle of 90 degrees to […]
With Chinese long-term high-speed economic growth demand for energy, the people’s requirements for the quality of life and the ecological environment are also increasing. Century projects such as the West-East Gas Transmission, Sichuan-to-East Gas Transmission, and the introduction of Russian natural gas show that natural gas, an important energy source with high quality, cleanness and […]
A Frac Valve is a large gate valve which works as an isolation valve operating under high pressure from the flowing hydrocarbon streams in a wellbore. These valves are installed on the top of the wellhead on an oil well which is about to be fractured hydraulically. A high-pressure isolation valve fitted to the top of […]
A Flapper valve is a check valve that contains a spring-loaded plate or flapper that allows the unidirectional fluid or gas flow and provides high performance sealing capabilities. It seals the opening when the fluid tries to flow back. The valve creates a watertight seal in storage tanks and ensures safe operations when used in […]
Types Of Special purpose valves? Answer: 1. Multi- Port valve. 2. Flush Bottom valve. 3. Float valve. 4. Foot valve. 5. Line blind valve. 6. Knife Gate valve.