What Are High Pressure Check Valves?
The disc of high pressure check valves is discoid, which rotate with a spindle inside channel of seat. Because of the channel is streamline form. Flow resistance of high pressure check valves is lower than that of butterfly check valves. High pressure check valves are suitable for large diameter pipelines where flow velocity is low or does not change frequently. They are not suitable for pulsating flow. High pressure check valves have poor sealing than lift check valves. Butterfly check valves are classified into single-disc check valves, double-disc check valves and multi-discs check valves. The classification is based on diameter of valves. Butterfly check valves are used to weaken shock caused by waterpower, when the medium stops flowing or flows backwards.
High pressure valves are a kind of valve whose disc slides along with the vertical center line of body. Internal thread check valves can be only installed at horizontal pipes. Ball is used as disc for high pressure check valves having small diameter. The body shape of butterfly check valves is the same as globe valves. They can be in common use with globe valves. For this, butterfly check valves has high coefficient of fluid resistance. The structure of high pressure check valves is similar to globe valves. Body and disc are the same as globe valves. When medium flows downstream, disc opens relying on thrust of medium. When medium stops flowing, the disc falls on the seat freely to stop medium from back flowing.
Butterfly check valves have simple structure, which can be only installed at horizontal pipelines and have excellent sealing.
Pipeline check valves are a kind of newly-developed valves, having the advantages of small volume, light weight and good manufacturability. However, compared with swing check valves, pipeline check valves have high coefficient of fluid resistance.
High pressure check valves are used as cut-off valves in feedwater and steam of boilers. High pressure check valves have comprehensive function combining swing check valves, globe valves or angle valves.
High pressure valves are a kind of valve whose disc slides along with the vertical center line of body. Internal thread check valves can be only installed at horizontal pipes. Ball is used as disc for high pressure check valves having small diameter. The body shape of butterfly check valves is the same as globe valves. They can be in common use with globe valves. For this, butterfly check valves has high coefficient of fluid resistance. The structure of high pressure check valves is similar to globe valves. Body and disc are the same as globe valves. When medium flows downstream, disc opens relying on thrust of medium. When medium stops flowing, the disc falls on the seat freely to stop medium from back flowing.
Butterfly check valves have simple structure, which can be only installed at horizontal pipelines and have excellent sealing.
Pipeline check valves are a kind of newly-developed valves, having the advantages of small volume, light weight and good manufacturability. However, compared with swing check valves, pipeline check valves have high coefficient of fluid resistance.
High pressure check valves are used as cut-off valves in feedwater and steam of boilers. High pressure check valves have comprehensive function combining swing check valves, globe valves or angle valves.
