Characteristics and categorization of safety valve

Characteristics and categorization of safety valve

Safety valve is an automatic valve, it does not use any external force and use the force of the medium itself to discharge the rated amount of fluid, in order to prevent pressure exceeding the rated safety value. When the pressure returns to normal, the valve closes again and prevents the medium from flowing out. […]

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Structural Characteristics of Fully Welded Ball Valve

Fully welded ball valves are used in various applications. It has high quality and high performance stability, which can not be achieved by ordinary cast steel ball valves. Its service life is much longer than that of cast steel ball valves. Fully welded ball valves are widely used in urban gas, urban heating, petrochemical industry, […]

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Material Selection of Forged Steel Low Temperature Globe Valve

The characteristics and structure material selection of forged steel low temperature globe valves First, the design of the low temperature valves The design of the cryogenic valve has the following requirements, depending on the working conditions: (1) The valve should have a long-term working ability in low temperature medium and ambient temperature. (2) Valves should not be a significant source of heat for […]

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Common Defects and Preventive Measures of Gate Valve

What is a gate valve? A gate valve refers to a valve in which the opening and closing part (valve plate) is driven by the valve stem to move the sealing surface of the valve seat for lifting movement, and a valve that can open or cut off the passage of the fluid. When the […]

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How to choose the right butterfly valve?

Butterfly valve with disc type opening and closing a reciprocating swing around 90 ° to open and close or adjusting medium flow of a valve. Butterfly valve is not only simple in structure, small in volume, light in weight, low in material consumption, small in installation size, small in driving torque, easy to operate and […]

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Classification and structural characteristics of safety valves

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 […]

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How do gate valves work?

Do you know the pressure test methods for various valves? (with dynamic map)

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 […]

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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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