The DFT® Restrictor Check Valve (RCV) is a versatile, all-purpose, spring-assisted, in-line check valve for applications that require higher cracking pressures to open the check valve than those offered by other DFT® check valves. Cracking pressures are available from 2 to 40 psi. Like the Basic-Check® valve, the Restrictor Check provides reliable, low maintenance service for a wide range of fluids and gases at various pressure/temperature combinations. The valve consists of a guard cage, spring, valve disc, retaining ring and seat. It can be combined with pipe fittings such as couplings, drain elbows, etc. (not provided by DFT®) to form a complete check valve unit ideally suited for a broad range of applications. The RCV should not be considered a substitute for a Pressure Relief Valve.
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Prod. #

Size

Line Size Inlet (FNPT) A

Outside Thread (MNPT) B

Valve Cracking Pressure

Cold Working Pressure

5639 N/A DN 8 0.25 in N/A 0.25 in N/A 1.00 in N/A 3.3 psi0.228 bar N/A 0 psig2500 psig0 barg172 barg
5640 N/A DN 8 0.25 in N/A 0.25 in N/A 1.00 in N/A 5.3 psi0.365 bar N/A 0 psig2500 psig0 barg172 barg
5641 N/A DN 8 0.25 in N/A 0.25 in N/A 1.00 in N/A 8.1 psi0.558 bar N/A 0 psig2500 psig0 barg172 barg
5642 N/A DN 8 0.25 in N/A 0.25 in N/A 1.00 in N/A 10.9 psi0.752 bar N/A 0 psig2500 psig0 barg172 barg
5650C204 N/A DN 8 0.25 in N/A 0.25 in N/A 1.00 in N/A 20.4 psi1.407 bar N/A 0 psig2500 psig0 barg172 barg
5643 N/A DN 10 0.375 in N/A 0.375 in N/A 1.00 in N/A 3.3 psi0.228 bar N/A 0 psig2500 psig0 barg172 barg
5644 N/A DN 10 0.375 in N/A 0.375 in N/A 1.00 in N/A 5.3 psi0.365 bar N/A 0 psig2500 psig0 barg172 barg
5645 N/A DN 10 0.375 in N/A 0.375 in N/A 1.00 in N/A 8.1 psi0.558 bar N/A 0 psig2500 psig0 barg172 barg
5646 N/A DN 10 0.375 in N/A 0.375 in N/A 1.00 in N/A 10.9 psi0.752 bar N/A 0 psig2500 psig0 barg172 barg
5651C204 N/A DN 10 0.375 in N/A 0.375 in N/A 1.00 in N/A 20.4 psi1.407 bar N/A 0 psig2500 psig0 barg172 barg
5616 N/A DN 15 0.5 in N/A 0.50 in N/A 1.00 in N/A 3.3 psi0.228 bar N/A 0 psig2500 psig0 barg172 barg
5617 N/A DN 15 0.5 in N/A 0.50 in N/A 1.00 in N/A 5.3 psi0.365 bar N/A 0 psig2500 psig0 barg172 barg
5618 N/A DN 15 0.5 in N/A 0.50 in N/A 1.00 in N/A 8.1 psi0.558 bar N/A 0 psig2500 psig0 barg172 barg
5619 N/A DN 15 0.5 in N/A 0.50 in N/A 1.00 in N/A 10.9 psi0.752 bar N/A 0 psig2500 psig0 barg172 barg
5652C204 N/A DN 15 0.5 in N/A 0.50 in N/A 1.00 in N/A 20.4 psi1.407 bar N/A 0 psig2500 psig0 barg172 barg
5635 N/A DN 20 0.75 in N/A 0.75 in N/A 1.50 in N/A 3.3 psi0.228 bar N/A 0 psig2000 psig0 barg138 barg
5636 N/A DN 20 0.75 in N/A 0.75 in N/A 1.50 in N/A 5.3 psi0.365 bar N/A 0 psig2000 psig0 barg138 barg
5637 N/A DN 20 0.75 in N/A 0.75 in N/A 1.50 in N/A 8.4 psi0.579 bar N/A 0 psig2000 psig0 barg138 barg
5653C155 N/A DN 20 0.75 in N/A 0.75 in N/A 1.50 in N/A 15.5 psi1.069 bar N/A 0 psig2000 psig0 barg138 barg
5620 N/A DN 25 1 in N/A 1.00 in N/A 2.00 in N/A 4.2 psi0.290 bar N/A 0 psig1500 psig0 barg103 barg
5621 N/A DN 25 1 in N/A 1.00 in N/A 2.00 in N/A 6.1 psi0.421 bar N/A 0 psig1500 psig0 barg103 barg
5622 N/A DN 25 1 in N/A 1.00 in N/A 2.00 in N/A 9.4 psi0.648 bar N/A 0 psig1500 psig0 barg103 barg
5623 N/A DN 25 1 in N/A 1.00 in N/A 2.00 in N/A 12.9 psi0.889 bar N/A 0 psig1500 psig0 barg103 barg
5654C155 N/A DN 25 1 in N/A 1.00 in N/A 2.00 in N/A 15.5 psi1.069 bar N/A 0 psig1500 psig0 barg103 barg
5654C318 N/A DN 25 1 in N/A 1.00 in N/A 2.00 in N/A 31.8 psi2.193 bar N/A 0 psig1500 psig0 barg103 barg
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