• Pulp & Paper

The DFT® Model PDC® Silent Check Valve is specially designed for use on the discharge side of reciprocating air or gas compressors. It includes a pulse damping chamber to maintain the disc in the open position during the momentary reductions in flow associated with each cycle of a reciprocating compressor and to protect against premature seat wear.

Click here to view the Check Valve Animation
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Prod. #

Class

Size

Dimension A

Dimension B

Cv

Cracking Pressure CP

Body

N/A 150 N/A DN 50 2 in N/A 8 in203 mm N/A 6 in152 mm N/A 62 N/A 0.41 psig0.028 bar N/A A216 Grade WCB
N/A 300 N/A DN 50 2 in N/A 10.5 in267 mm N/A 6.5 in165 mm N/A 62 N/A 0.49 psig0.034 bar N/A A216 Grade WCB
N/A 600 N/A DN 50 2 in N/A 11.5 in292 mm N/A 6.5 in165 mm N/A 62 N/A 0.41 psig0.028 bar N/A A216 Grade WCB
N/A 900 N/A DN 50 2 in N/A 14.5 in368 mm N/A 8.5 in216 mm N/A 55 N/A 0.35 psig0.024 bar N/A A216 Grade WCB
N/A 1500 N/A DN 50 2 in N/A 14.5 in368 mm N/A 8.5 in216 mm N/A 55 N/A 0.35 psig0.024 bar N/A A216 Grade WCB
N/A 150 N/A DN 50 2 in N/A 8 in203 mm N/A 6 in152 mm N/A 62 N/A 0.41 psig0.028 bar N/A A351 CF8M
N/A 600 N/A DN 50 2 in N/A 11.5 in292 mm N/A 6.5 in165 mm N/A 62 N/A 0.41 psig0.028 bar N/A A351 CF8M
N/A 900 N/A DN 50 2 in N/A 14.5 in368 mm N/A 8.5 in216 mm N/A 55 N/A 0.35 psig0.024 bar N/A A351 CF8M
N/A 150 N/A DN 50 2 in N/A 8 in203 mm N/A 6 in152 mm N/A 62 N/A 0.41 psig0.028 bar N/A A352 LCC
N/A 300 N/A DN 50 2 in N/A 10.5 in267 mm N/A 6.5 in165 mm N/A 62 N/A 0.49 psig0.034 bar N/A A352 LCC
N/A 600 N/A DN 50 2 in N/A 11.5 in292 mm N/A 6.5 in165 mm N/A 62 N/A 0.41 psig0.028 bar N/A A352 LCC
N/A 900 N/A DN 50 2 in N/A 14.5 in368 mm N/A 8.5 in216 mm N/A 55 N/A 0.35 psig0.024 bar N/A A352 LCC
N/A 1500 N/A DN 50 2 in N/A 14.5 in368 mm N/A 8.5 in216 mm N/A 55 N/A 0.35 psig0.024 bar N/A A352 LCC
N/A 150 N/A DN 80 3 in N/A 9.5 in241 mm N/A 7.5 in191 mm N/A 148 N/A 0.62 psig0.043 bar N/A A216 Grade WCB
N/A 300 N/A DN 80 3 in N/A 12.5 in318 mm N/A 8.25 in210 mm N/A 148 N/A 0.62 psig0.043 bar N/A A216 Grade WCB
N/A 600 N/A DN 80 3 in N/A 14 in356 mm N/A 8.25 in210 mm N/A 142 N/A 0.66 psig0.046 bar N/A A216 Grade WCB
N/A 900 N/A DN 80 3 in N/A 15 in381 mm N/A 9.5 in241 mm N/A 118 N/A 0.78 psig0.054 bar N/A A216 Grade WCB
N/A 1500 N/A DN 80 3 in N/A 18.5 in470 mm N/A 10.5 in267 mm N/A 118 N/A 0.78 psig0.054 bar N/A A216 Grade WCB
N/A 600 N/A DN 80 3 in N/A 14 in356 mm N/A 8.25 in210 mm N/A 142 N/A 0.66 psig0.046 bar N/A A351 CF8M
N/A 1500 N/A DN 80 3 in N/A 18.5 in470 mm N/A 10.5 in267 mm N/A 118 N/A 0.78 psig0.054 bar N/A A351 CF8M
N/A 150 N/A DN 80 3 in N/A 9.5 in241 mm N/A 7.5 in191 mm N/A 148 N/A 0.62 psig0.043 bar N/A A352 LCC
N/A 300 N/A DN 80 3 in N/A 12.5 in318 mm N/A 8.25 in210 mm N/A 148 N/A 0.62 psig0.043 bar N/A A352 LCC
N/A 600 N/A DN 80 3 in N/A 14 in356 mm N/A 8.25 in210 mm N/A 142 N/A 0.66 psig0.046 bar N/A A352 LCC
N/A 900 N/A DN 80 3 in N/A 15 in381 mm N/A 9.5 in241 mm N/A 118 N/A 0.78 psig0.054 bar N/A A352 LCC
N/A 1500 N/A DN 80 3 in N/A 18.5 in470 mm N/A 10.5 in267 mm N/A 118 N/A 0.78 psig0.054 bar N/A A352 LCC
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