The DFT® Model SCV® is a corrosion resistant, dependable, versatile and economical spring-assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or steam, the SCV® provides tight shut-off and protects other equipment in the system from water hammer. Its stainless steel construction insures a long service life.
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Prod. #

Size

Cold Working Pressure

Dimension A

Dimension B

Cv

Cracking Pressure CP

End Connection

8317 N/A DN 15 0.5 in N/A 0 to 750 psig0 to 51.7 barg N/A 2.68 in68 mm N/A 1.62 in41 mm N/A 7 N/A 0.29 psig0.020 bar N/A NPT
8368 N/A DN 20 0.75 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.00 in76 mm N/A 2.13 in54 mm N/A 13 N/A 0.24 psig0.017 bar N/A NPT
8369 N/A DN 25 1 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.32 in84 mm N/A 2.54 in65 mm N/A 22 N/A 0.36 psig0.025 bar N/A NPT
8371 N/A DN 32 1.25 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.87 in98 mm N/A 3.06 in78 mm N/A 39 N/A 0.28 psig0.019 bar N/A NPT
8373 N/A DN 40 1.5 in N/A 0 to 750 psig0 to 51.7 barg N/A 4.75 in121 mm N/A 3.44 in87 mm N/A 54 N/A 0.24 psig0.017 bar N/A NPT
8374 N/A DN 50 2 in N/A 0 to 750 psig0 to 51.7 barg N/A 5.00 in127 mm N/A 4.4 in112 mm N/A 93 N/A 0.42 psig0.029 bar N/A NPT
8311 N/A DN 80 3 in N/A 0 to 750 psig0 to 51.7 barg N/A 6.75 in171 mm N/A 6.19 in157 mm N/A 180 N/A 0.20 psig0.014 bar N/A NPT
8317SW N/A DN 15 0.5 in N/A 0 to 750 psig0 to 51.7 barg N/A 2.68 in68 mm N/A 1.62 in41 mm N/A 7 N/A 0.29 psig0.020 bar N/A Socket Weld
8368SW N/A DN 20 0.75 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.00 in76 mm N/A 2.13 in54 mm N/A 13 N/A 0.24 psig0.017 bar N/A Socket Weld
8369SW N/A DN 25 1 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.32 in84 mm N/A 2.54 in65 mm N/A 22 N/A 0.36 psig0.025 bar N/A Socket Weld
8371SW N/A DN 32 1.25 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.87 in98 mm N/A 3.06 in78 mm N/A 39 N/A 0.28 psig0.019 bar N/A Socket Weld
8373SW N/A DN 40 1.5 in N/A 0 to 750 psig0 to 51.7 barg N/A 4.75 in121 mm N/A 3.44 in87 mm N/A 54 N/A 0.24 psig0.017 bar N/A Socket Weld
8374SW N/A DN 50 2 in N/A 0 to 750 psig0 to 51.7 barg N/A 5.00 in127 mm N/A 4.4 in112 mm N/A 93 N/A 0.42 psig0.029 bar N/A Socket Weld
8311SW N/A DN 80 3 in N/A 0 to 750 psig0 to 51.7 barg N/A 6.75 in171 mm N/A 6.19 in157 mm N/A 180 N/A 0.20 psig0.014 bar N/A Socket Weld
8317A20 N/A DN 15 0.5 in N/A 0 to 750 psig0 to 51.7 barg N/A 2.68 in68 mm N/A 1.62 in41 mm N/A 7 N/A 0.29 psig0.020 bar N/A NPT
8368A20 N/A DN 20 0.75 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.00 in76 mm N/A 2.13 in54 mm N/A 13 N/A 0.24 psig0.017 bar N/A NPT
8369A20 N/A DN 25 1 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.32 in84 mm N/A 2.54 in65 mm N/A 22 N/A 0.36 psig0.025 bar N/A NPT
8371A20 N/A DN 32 1.25 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.87 in98 mm N/A 3.06 in78 mm N/A 39 N/A 0.28 psig0.019 bar N/A NPT
8373A20 N/A DN 40 1.5 in N/A 0 to 750 psig0 to 51.7 barg N/A 4.75 in121 mm N/A 3.44 in87 mm N/A 54 N/A 0.24 psig0.017 bar N/A NPT
8374A20 N/A DN 50 2 in N/A 0 to 750 psig0 to 51.7 barg N/A 5.00 in127 mm N/A 4.4 in112 mm N/A 93 N/A 0.42 psig0.029 bar N/A NPT
8311A20 N/A DN 80 3 in N/A 0 to 750 psig0 to 51.7 barg N/A 6.75 in171 mm N/A 6.19 in157 mm N/A 180 N/A 0.20 psig0.014 bar N/A NPT
8317HC N/A DN 15 0.5 in N/A 0 to 750 psig0 to 51.7 barg N/A 2.68 in68 mm N/A 1.62 in41 mm N/A 7 N/A 0.29 psig0.020 bar N/A NPT
8368HC N/A DN 20 0.75 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.00 in76 mm N/A 2.13 in54 mm N/A 13 N/A 0.24 psig0.017 bar N/A NPT
8369HC N/A DN 25 1 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.32 in84 mm N/A 2.54 in65 mm N/A 22 N/A 0.36 psig0.025 bar N/A NPT
8371HC N/A DN 32 1.25 in N/A 0 to 750 psig0 to 51.7 barg N/A 3.87 in98 mm N/A 3.06 in78 mm N/A 39 N/A 0.28 psig0.019 bar N/A NPT
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