Find My Check Valve
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.
Unit of Measure
Items |
![]() 315H1C4A3 A351 CF8M 2" 316 SS Class 600 RF PDC® Flanged Check Valve |
![]() 318H1C4A3 A352 LCC 2" 316 SS Class 600 RF PDC® Flanged Check Valve |
![]() 312H1C4A3 A216 WCB 2" 316 SS Class 600 RF PDC® Flanged Check Valve |
![]() 312H1B4A3 A216 WCB 2" 316 SS Class 300 RF PDC® Flanged Check Valve |
![]() 318H1B4A3 A352 LCC 2" 316 SS Class 300 RF PDC® Flanged Check Valve | |||||
Series | N/A PDC® | |||||||||
ASME CLASS | N/A 600 | N/A 600 | N/A 600 | N/A 300 | N/A 300 | |||||
Size | N/A 2.00 inDN 50 | |||||||||
Dimension A | N/A 11.5 in292 mm | N/A 11.5 in292 mm | N/A 11.5 in292 mm | N/A 10.5 in267 mm | N/A 10.5 in267 mm | |||||
Dimension B | N/A 6.5 in165 mm | |||||||||
Weight | N/A 35 lb15.9 kg | N/A 35 lb15.9 kg | N/A 35 lb15.9 kg | N/A 27 lb12.2 kg | N/A 27 lb12.2 kg | |||||
Cracking Pressure CP | N/A 0.028 bar0.41 psig | N/A 0.028 bar0.41 psig | N/A 0.028 bar0.41 psig | N/A 0.034 bar0.49 psig | N/A 0.034 bar0.49 psig | |||||
Body | N/A A351 CF8M | N/A A352 LCC | N/A A216 Grade WCB | N/A A216 Grade WCB | N/A A352 LCC | |||||
Body Material | N/A 316 Stainless Steel | N/A Low Temp. Carbon Steel | N/A Carbon Steel | N/A Carbon Steel | N/A Low Temp. Carbon Steel | |||||
Disc | N/A A351 CF8M | |||||||||
Seat1 | N/A A351 CF8M | |||||||||
Spring2 | N/A A313 316 (450°F max.) Option | |||||||||
Spring for Ball check | N/A Inconel® X-750 | |||||||||
Disc Guide | N/A A479 316 | |||||||||
Bushing | N/A Rulon® | |||||||||
Seal Ring | N/A Teflon®/Hastelloy® C276 | |||||||||
Spring Retainer - Ball Check | N/A A479 316 | |||||||||
Guide Ring | N/A Teflon | |||||||||
Ball Check | N/A 440C SS | |||||||||
Orifice Plug | N/A A479 316 | |||||||||
Body Seal3 | N/A 316 / Flexible Graphite | N/A 316 / Flexible Graphite | N/A 316 / Flexible Graphite | N/A Durlon 9000 | N/A Durlon 9000 | |||||
Available Soft Seat Materials4 | N/A Buna-N (-70 to 250°F) EPDM (-75 to 300°F) TFE®-Viton® (-40 to 400°F) Viton® (-40 to 400°F) Zelon® (37 to 400°F) | |||||||||
ENDS | N/A FLG (RF) | |||||||||
ANSI | N/A B1.1 B16.10 B16.20 B16.34 B16.5 | |||||||||
MSS | N/A SP-126 SP-25 SP-6 SP-61 | |||||||||
ASTM | N/A A216GR WCB A351GR CF8M CRN NACE | |||||||||
Other | N/A CRN NACE | |||||||||
Cv | N/A 62 | |||||||||
Applications | N/A Compressor Discharge Metering Pumps Process Lines Pump Discharge Refrigeration | |||||||||
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