Selection Principles of Gate Valves

Selection Principles of Gate Valves Advantages of gate valves 1. The medium’s flow direction will not be changed because gate valves belong to the through type valve which also makes gate valves feature in small flow resistance. 2. The sealing performance of gate valves is better than that of globe valves, and the opening and closing […]

 
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Nine Advantages of Forged Steel Ball Valves

Nine Advantages of Forged Steel Ball Valves One of the advantages of the forged steel ball valve is its small flow resistance which can be zero actually. The sealing performance of theforged steel ball valve is reliable because most valve seats of forged steel ball valves are made of PTFE elastomer so that the effect of complete […]

 
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Why Sealing Surfaces of Forged Steel Ball Valves Are Damaged?

Why Sealing Surfaces of Forged Steel Ball Valves Are Damaged? Forged steel ball valves are mainly used for gas pipelines in urban areas, long-term petroleum pipelines and natural gas pipelines. The security, the weather resistance and the long-term working capability of the forged steel ball valves, and the pressure resistance capacity of the pipelines needs to be […]

 
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What is an angle valve?

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 […]

 
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What are gate valves

How do gate valves work?

What are gate valves? Gate valves, or sluice valves, as they are sometimes known, are valves that open by lifting a round or rectangular gate/wedge out of the path of the fluid. They are so named because the part that either stops or allows flow through the valve acts somewhat like a gate. The gate […]

 
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Why use extended bonnet for cryogenic valves?

The suitable temperature of the medium for cryogenic valves is -40℃~-196℃. Usually, cryogenic valves will adopt extended bonnet. The extended bonnet is used to specify low temperature valves including low temperature emergency shut-off valves, low temperature shut-off valves, low temperature check valves, LNG-specific cryogenic valves, and NG-specific cryogenic valves, which are mainly used in chemical […]

 
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What is the valve cushion structure

What is the valve cushion structure? The valve controls and conveys the medium by the cooperation between the valve body and the valve disc. After the valve is closed, the pressure at the inlet end and the outlet end is different, and a pressure difference is generated. When the valve is opened, the existence of […]

 
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Natural gas pipeline valves VS ordinary valves

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 […]

 
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How to choosing valves for water pipeline

Principles of choosing valves for water pipeline When the diameter of a pipe is less than or equal to 50mm, choose globe valves, whereas when the diameter is more than 50mm, use gate valves or butterfly valves. When the adjustment of flow rate and pressure of media is needed, it is better to use control […]

 
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What is a Frac Valve?

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 […]

 
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