Find My Check Valve
The DFT® Model GLC® Silent Check Valve is a spring-assisted, center guided, in-line, flanged check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. The valve consists of a body, seat, spring, disc with stem and guide bushing. Some valves have body or gasket seals. The DFT® GLC® check valve has the advantage of minimum pressure loss with silent, non-slam operation.
Unit of Measure
Items
GLC® Flanged Check Valves

A216 WCB 1" 316 SS Trim Class 600 RF GLC® Flanged Check Valve

GLC® Flanged Check Valves

A216 WCB 1" 316 SS Trim Class 300 RF GLC® Flanged Check Valve

GLC® Flanged Check Valves

A351 CF8M 1" 316 SS Trim Class 300 RF GLC® Flanged Check Valve

GLC® Flanged Check Valves

A351 CF8M 1" 316 SS Trim Class 150 RF GLC® Flanged Check Valve

GLC® Flanged Check Valves

A351 CF8M 1" 316 SS Trim Class 600 RF GLC® Flanged Check Valve
OLD PART # N/A 9513 N/A 9509 N/A 9511 N/A 9505 N/A 9515
Series N/A GLC®
ASME CLASS N/A 600 N/A 300 N/A 300 N/A 150 N/A 600
Size N/A 1.00 inDN 25
Dimension A N/A 5.25 in133 mm N/A 4.75 in121 mm N/A 4.75 in121 mm N/A 4.50 in114 mm N/A 5.25 in133 mm
Dimension B N/A 4.88 in124 mm N/A 4.88 in124 mm N/A 4.88 in124 mm N/A 4.25 in108 mm N/A 4.88 in124 mm
Weight N/A 11 lb5 kg N/A 9 lb4.1 kg N/A 9 lb4.1 kg N/A 7.00 lb3.2 kg N/A 11 lb5 kg
Cracking Pressure CP N/A 0.059 bar0.85 psig
Body N/A A216 Grade WCB N/A A216 Grade WCB N/A A351 CF8M N/A A351 CF8M N/A A351 CF8M
Body Material N/A Carbon Steel N/A Carbon Steel N/A 316 Stainless Steel N/A 316 Stainless Steel N/A 316 Stainless Steel
Disc/Stem Assembly N/A A351 CF8M/A479 316
Seat1 N/A A351 CF8M
Spring2 N/A A313 316
Bushing N/A A479 316
Gasketing3 N/A Spiral Wound Graphite N/A Corrugated Flexible Graphite N/A Corrugated Flexible Graphite N/A Corrugated Flexible Graphite N/A Spiral Wound Graphite
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 B16.20 B16.34 B16.5
MSS5 N/A SP-125 SP-126 SP-25 SP-6 SP-61
ASTM6 N/A 6FD A126 CLASS B A216GR WCB A351GR CF8M CRN NACE
Cv N/A 17 N/A 19 N/A 19 N/A 17 N/A 17
Applications N/A Autoclaves Boiler Feed & Discharge Chemical Lines Condensate Lines Cookers Cooling Towers Crude & Refined Product Lines Cryogenics Digester Evaporators Fly Ash System Generator Inlet & Discharge Hydraulic Lines Metering Pumps Mine Dewatering Process Lines Pump Discharge Refrigeration Steam Lines Vacuum Breaker Water Lines Water Treatment
  • 1 Soft seats are available for bubble-tight shutoff.
  • 2 Inconel® X-750 spring is available.
  • 3 Corrugated flexible graphite (316 graphite material) unless noted elsewhere.
  • 4 TFE-Viton: Teflon Encapsulated Viton
  • 5
    1. SP-61: Class 125 and 250 Cast Iron valves are leak tested in accordance with AWWA.
    2. SP-125,SP-250: Cast Iron Valves only.
    3. SP-126: Except Cast Iron Valves.
  • 6
    1. 6FD: ASME 150 & 300, 2" to 24" only.
    2. Contact DFT for NACE.