Find My Check Valve
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
Unit of Measure
Items
DLC® Flanged Check Valves

1/2" 316 SS Class 300 RF DLC® Flanged Check Valve

DLC® Flanged Check Valves

1/2" 316 SS Class 150 RF DLC® Flanged Check Valve

DLC® Flanged Check Valves

3/4" 316 SS Class 300 RF DLC® Flanged Check Valve

DLC® Flanged Check Valves

3/4" 316 SS Class 150 RF DLC® Flanged Check Valve

DLC® Flanged Check Valves

1" 316 SS Class 300 RF DLC® Flanged Check Valve
OLD PART # N/A 9410 N/A 9400 N/A 9411 N/A 9401 N/A 9412
Series N/A DLC®
ASME CLASS N/A 300 N/A 150 N/A 300 N/A 150 N/A 300
Size N/A 0.50 inDN 15 N/A 0.50 inDN 15 N/A 0.75 inDN 20 N/A 0.75 inDN 20 N/A 1.00 inDN 25
Dimension A N/A 6.00 in152 mm N/A 4.25 in108 mm N/A 7.00 in178 mm N/A 4.62 in117 mm N/A 8.50 in216 mm
Dimension B N/A 3.75 in95 mm N/A 3.50 in89 mm N/A 4.62 in117 mm N/A 3.88 in99 mm N/A 4.88 in124 mm
Weight N/A 4.5 lb2 kg N/A 3.2 lb1.5 kg N/A 7.2 lb3.3 kg N/A 4.5 lb2 kg N/A 9.9 lb4.5 kg
Cracking Pressure CP N/A 0.02 bar0.29 psig N/A 0.02 bar0.29 psig N/A 0.017 bar0.24 psig N/A 0.017 bar0.24 psig N/A 0.025 bar0.36 psig
Temperature Rating
N/A -460 to 700 ºF-273 to 371 ºC
Pressure Rating1 N/A 0 psig720 psig0 barg49.6 barg N/A 0 psig275 psig0 barg19 barg N/A 0 psig720 psig0 barg49.6 barg N/A 0 psig275 psig0 barg19 barg N/A 0 psig720 psig0 barg49.6 barg
Trim N/A A351 CF8M/316 SS
Body N/A A351 CF8M
Seat N/A A351 CF8M
Spring N/A Inconel® X-750
Disc N/A 316 SS
ENDS N/A FLG (RF)
ANSI N/A B16.10 B16.34 B16.5
MSS N/A SP-126 SP-25 SP-61
Other Standards2 N/A CRN NACE
Cv N/A 7 N/A 7 N/A 13 N/A 13 N/A 22
Applications N/A Autoclaves Boiler Feed & Discharge Chemical Lines Compressor Discharge Condensate Lines Cookers Cooling Towers Crude & Refined Product Lines Cryogenics Digester Evaporators Fly Ash System Generator Inlet & Discharge Hydraulic Lines Metering Pumps Mine Dewatering Nitrogen Purge Process Lines Pump Discharge Refrigeration Steam Lines Vacuum Breaker Water Lines Water Treatment
Body Material N/A Alloy 20
  • 1 ASME B16.34-2004
  • 2 Contact DFT for NACE.