reduced seat valves and fittings calculator

enter the value and click "calculate", the calculation result will be displayed.

`K=[K_R+K_1]/[β^4+K_E]`
k = k value of main valve
K1 =reduce the k value of the valve seat
β = dvalve / dpipeline
KR = k reducer value
KE = k amplification value

enter a value:

reduce the k value of the valve seat:
k reducer value:
k amplification value
β :

calculation result:

k value of main valve:
reduction seat valve and fitting calculator

the reduced-bore seat valve is divided into three parts: the reduced-bore (constricted) part, the segmented valve and the amplifier part.

the k value is related to the size of the valve in the pipeline and is determined for each section.

 

the full k value is the valve k value of the reducer, segmented valve, and amplifier. since the valve part k value depends on the valve seat diameter rather than the pipe diameter, it must be adjusted by a correction factor to determine the correct k value for the pipe diameter.

the valve correction factor is the ratio of the valve seat diameter divided by the fourth power of the pipe diameter (often called β).
search calculator