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Structural characteristics of liquefied natural gas safety valve
Liquefied natural gas safety valve refers to the low-temperature LNG liquefied natural gas system. The opening and closing parts are normally closed under the action of external force. When the pressure of the low-temperature LNG liquefied natural gas medium in the low-temperature equipment or pi...Read more -
Comparison of electric wafer ball valve and pneumatic wafer ball valve
The electric wafer ball valve is composed of DSR electric actuator and ultra-thin ball valve. Compared with ordinary electric ball valve, the electric ultra-thin ball valve (electric wafer ball valve) has compact structure, small volume, light weight, and the distance between the valve seat and t...Read more -
Features of multifunctional inclined plate valve
Application: The multifunctional inclined plate valve is installed in the fields of municipal administration, construction, steel, metallurgy, petroleum, chemical industry, food, medicine, power station, water conservancy, irrigation and other fields for water intake, water supply, pressurization...Read more -
Electric control valve installation requirements
The electric control valve is installed on the pipeline and is in direct contact with the operating medium, and is affected by harsh working conditions such as high temperature, high pressure, corrosion and friction for a long time. Therefore, choosing the quality of the regulating valve has a gr...Read more -
Structural features of stainless steel three-way ball valve
1. Top-mounted structure: The valve installed on the pipeline can be directly inspected and repaired online, which can effectively reduce device shutdown and reduce costs. This type of valve should generally be installed horizontally in the pipeline; 2. Open and close without friction: completely...Read more -
Working principle of stainless steel three-way ball valve
1. Opening process: A. In the closed position, the ball is pressed against the valve seat by the mechanical pressure of the valve stem; B. When the handwheel is turned counterclockwise, the valve stem moves in the opposite direction, and the angular plane at the bottom makes the ball free from th...Read more -
Two common factors affecting the service life of pneumatic diaphragm valves.
1. The method of working with a large opening to extend the service life allows the pneumatic control valve to work at the maximum opening as far as possible, such as 90%. In this way, damages such as cavitation and erosion occur on the head of the valve core. As the spool is destroyed and the fl...Read more -
Possible causes of water leakage in pneumatic diaphragm valve.
The pneumatic diaphragm valve has to withstand greater pressure during the opening and closing process. The sudden action changes the state of the water flow. The pneumatic diaphragm valve gradually opens from the closed state to form a gap. The shear force generated by the water flow acts on the...Read more -
Key points of cryogenic valve design!
Cryogenic valves are widely used in the fields of fertilizer, LNG and petrochemical industry. Except for liquid nitrogen and other liquid inert gases, most of the media controlled are not only flammable and explosive, but also gasification occurs when they are heated or flashed. , Resulting in ra...Read more -
Why use forged steel ball valves for natural gas pipelines?
Because the trim material of the section steel ball valve is carefully selected, the wall thickness of the valve body and the connection strength of the bolts of the valve body are in accordance with the requirements of the American standard ASMEB16.34. After rigorous calculations, the correspond...Read more -
PRECAUTIONS FOR INSTALLATION OF ANTI-SCOURING GLOBE VALVE
1. This valve can only be used as a fully open or fully closed valve, and cannot be used as a regulating valve. 2. The transmission parts should be kept clean and lubricated regularly. 3. Account opening or closing is applied to the handwheel or actuator, and try not to use levers or other tools....Read more -
STRUCTURAL CHARACTERISTICS OF ANTI-SCOURING APPLICATION VALVE
1. The valve adopts a straight-through structure. 2. In order to avoid the medium’s high-speed scouring of the sealing pair during use, the sealing degree adopts a double valve seat structure, first throttling and blocking the stolen goods, and using the throttling medium to make the sealin...Read more