The DFT® Model WLC Wafer style Silent Check Valve is a lightweight, spring-assisted, in-line check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. The joint between the seat ring and body is sealed by the flange gasket upon installation preventing any leakage through the joint when the valve is in service.

Size/Class
  • 1", 1 1/2" - 150/300
  • 2" to 8" - 150/300
  • 10" - 150
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ASME CLASS

Size (in)

Size (mm)

ENDS

Cv

Prod. #

ASME CLASS

Size

Cracking Pressure CP

Body

ENDS

Cv

N/A 150 300 N/A 1.00 inDN 25 N/A 0.025 bar0.36 psig N/A A216 Grade WCB N/A Wafer (RF) N/A 19
N/A 150 300 N/A 1.00 inDN 25 N/A 0.025 bar0.36 psig N/A A351 CF8M N/A Wafer (RF) N/A 19
N/A 600 N/A 1.00 inDN 25 N/A 0.025 bar0.36 psig N/A A105 N/A Wafer (RF) N/A 19
N/A 600 N/A 1.00 inDN 25 N/A 0.025 bar0.36 psig N/A A479-316 N/A Wafer (RF) N/A 19
N/A 900 1500 N/A 1.00 inDN 25 N/A 0.03 bar0.44 psig N/A A105 N/A Wafer (RF) N/A 19
N/A 900 1500 N/A 1.00 inDN 25 N/A 0.03 bar0.44 psig N/A A479-316 N/A Wafer (RF) N/A 19
N/A 1500 N/A 1.00 inDN 25 N/A 0.03 bar0.44 psig N/A A105 N/A Wafer (RF) N/A 19
N/A 1500 N/A 1.00 inDN 25 N/A 0.03 bar0.44 psig N/A A479-316 N/A Wafer (RF) N/A 19
N/A 150 300 N/A 1.50 inDN 40 N/A 0.012 bar0.17 psig N/A A216 Grade WCB N/A Wafer (RF) N/A 36
N/A 150 300 N/A 1.50 inDN 40 N/A 0.012 bar0.17 psig N/A A351 CF8M N/A Wafer (RF) N/A 36
N/A 600 N/A 1.50 inDN 40 N/A 0.03 bar0.44 psig N/A A105 N/A Wafer (RF) N/A 23
N/A 600 N/A 1.50 inDN 40 N/A 0.03 bar0.44 psig N/A A479-316 N/A Wafer (RF) N/A 23
N/A 900 1500 N/A 1.50 inDN 40 N/A 0.037 bar0.54 psig N/A A105 N/A Wafer (RF) N/A 23
N/A 900 1500 N/A 1.50 inDN 40 N/A 0.037 bar0.54 psig N/A A479-316 N/A Wafer (RF) N/A 23
N/A 1500 N/A 1.50 inDN 40 N/A 0.037 bar0.54 psig N/A A105 N/A Wafer (RF) N/A 23
N/A 1500 N/A 1.50 inDN 40 N/A 0.037 bar0.54 psig N/A A479-316 N/A Wafer (RF) N/A 23
N/A 150 300 N/A 2.00 inDN 50 N/A 0.017 bar0.24 psig N/A A216 WCB N/A Wafer (RF) N/A 57
N/A 150 300 N/A 2.00 inDN 50 N/A 0.017 bar0.24 psig N/A A351 CF8M N/A Wafer (RF) N/A 57
N/A 600 N/A 2.00 inDN 50 N/A 0.018 bar0.26 psig N/A A216 Grade WCB N/A Wafer (RF) N/A 53
N/A 600 N/A 2.00 inDN 50 N/A 0.018 bar0.26 psig N/A A351 CF8M N/A Wafer (RF) N/A 53
N/A 900 1500 N/A 2.00 inDN 50 N/A 0.017 bar0.24 psig N/A A216 Grade WCB N/A Wafer (RF) N/A 48
N/A 900 1500 N/A 2.00 inDN 50 N/A 0.017 bar0.24 psig N/A A351 CF8M N/A Wafer (RF) N/A 48
N/A 1500 N/A 2.00 inDN 50 N/A 0.017 bar0.24 psig N/A A216 Grade WCB N/A Wafer (RF) N/A 48
N/A 1500 N/A 2.00 inDN 50 N/A 0.017 bar0.24 psig N/A A351 CF8M N/A Wafer (RF) N/A 48
N/A 150 300 N/A 2.50 inDN 65 N/A 0.026 bar0.37 psig N/A A216 Grade WCB N/A Wafer (RF) N/A 95
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