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$146.03
The Hyvair C20-20FP-7 is a C20 series steel inline check valve with 1-1/4 in female NPT ports. It allows free flow in one direction and blocks reverse flow, so fluid cannot drain back through the line when pressure drops. Maximum operating pressure is 3000 psi.
Cracking pressure is 7 psi (0.5 bar). This is the inlet pressure that unseats the check and starts forward flow. A low setting like 7 psi lets the valve open with little pressure, which keeps pressure drop low in the free flow direction while the check still closes when flow reverses.
The female NPT ports take 1-1/4 in male tapered pipe thread fittings. A flow direction arrow is marked on the steel body, so you can confirm orientation before the valve goes into the line.
Recommended fluid is petroleum based oil, ISO VG32 to 68. Maximum fluid temperature is 180 °F. At cold start, fluid viscosity should be no higher than 250 SUS. Keep filtration at 10 micron; clean oil protects the seat and helps the check seal each time it closes.
What port size does it use?
1-1/4 in (Female NPT).
What pressure and flow is it rated for?
It is rated to 3000 psi.
What fluid conditions keep it running well?
Rated operating conditions: filtration 10 micron; fluid: Petroleum based, ISO VG32-68.
What is it made of?
The body is steel.
Related categories: Valves · Check Valves
Brand: Hyvair
