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Hansen Logo's Choosing the correct check valve

Hansen inline check valves Use the following flow chart and technical specifications to determine the correct Check Valve for your requirements
Check valve flow chart - 25 to 63 mm

Maximum Recommended Working Pressure: @ 20C

VALVE CV25 CV32 CV40 CV50 CV63
psi 145 145 145 145 145
Bar 10 10 10 10 10
kPa 1000 1000 1000 1000 1000

Pressure required for initial flow:

VALVE CV25 CV32 CV40 CV50 CV63
psi 0.5 0.5 0.5 0.5 0.5
kPa 3.5 3.5 3.5 3.5 3.5

Flow required to fully open diaphragm:

VALVE CV25 CV32 CV40 CV50 CV63
l/min 110 142 158 225 330

Connection: female BSPT

VALVE CV25 CV32 CV40 CV50 CV63
Thread Size 1" 1 1/4" 1 1/2" 2" 2 1/2"

Dimensions: (mm)

VALVE CV25 CV32 CV40 CV50 CV63
Width 69 87 99 123 152
length 102 122 133 164 198
Height 74 94 106 132 180
Installation: Valve will operate at any angle.
Head Loss: See chart above.
Maximum operating temperature: 60C
(Degrees Celsius)
Note: All references to gallons are in imperial gallons.