The DFT® Model DLC® 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 DLC® provides tight shut-off and protects other equipment in the system from water hammer. Its stainless steel construction insures a long service life.
Inconel® X-750 spring is standard
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Prod. #

Class

Size

Dimension A

Dimension B

Cv

Cracking Pressure CP

9400 N/A 150 N/A DN 15 0.5 in N/A 4.25 in108 mm N/A 3.50 in89 mm N/A 7 N/A 0.29 psig0.020 bar
9401 N/A 150 N/A DN 20 0.75 in N/A 4.62 in117 mm N/A 3.88 in99 mm N/A 13 N/A 0.24 psig0.017 bar
9402 N/A 150 N/A DN 25 1 in N/A 5.00 in127 mm N/A 4.25 in108 mm N/A 22 N/A 0.36 psig0.025 bar
9404 N/A 150 N/A DN 40 1.5 in N/A 6.50 in165 mm N/A 5.00 in127 mm N/A 54 N/A 0.24 psig0.017 bar
9405 N/A 150 N/A DN 50 2 in N/A 8.00 in203 mm N/A 6.00 in152 mm N/A 93 N/A 0.42 psig0.029 bar
9407 N/A 150 N/A DN 80 3 in N/A 9.50 in241 mm N/A 7.50 in191 mm N/A 180 N/A 0.20 psig0.014 bar
9410 N/A 300 N/A DN 15 0.5 in N/A 6.00 in152 mm N/A 3.75 in95 mm N/A 7 N/A 0.29 psig0.020 bar
9411 N/A 300 N/A DN 20 0.75 in N/A 7.00 in178 mm N/A 4.62 in117 mm N/A 13 N/A 0.24 psig0.017 bar
9412 N/A 300 N/A DN 25 1 in N/A 8.50 in216 mm N/A 4.88 in124 mm N/A 22 N/A 0.36 psig0.025 bar
9414 N/A 300 N/A DN 40 1.5 in N/A 9.50 in241 mm N/A 6.12 in155 mm N/A 54 N/A 0.24 psig0.017 bar
9415 N/A 300 N/A DN 50 2 in N/A 10.50 in267 mm N/A 6.50 in165 mm N/A 93 N/A 0.23 psig0.016 bar
9417 N/A 300 N/A DN 80 3 in N/A 12.50 in318 mm N/A 8.25 in210 mm N/A 180 N/A 0.20 psig0.014 bar
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