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DFT’s Cast Iron GLC® Check Valve offers minimum pressure loss performance along with silent operation. This non-slam valve is center-guided, spring-assisted, and is capable of handling a wide range of temperature/pressure combinations along with a variety of system fluids. Each valve is constructed with a body, seat, spring, disc with stem and guide bushing, and specific models are available with O-ring or gasket body seals.

As its name implies, cast iron is the material used to create the body of the GLC® Silent Check Valve, and either bronze or 316 stainless steel is available for the trim. The valve is made with a one-piece body and “short” face-to-face dimensions. Depending on the application, both horizontal and vertical installation is possible. Not recommended for gas or steam service.
Unit of Measure

Inventory

Inventory

 N/A {0}

Specifications

Series

 N/A GLC®

Size

 N/A 20.0 inDN 500

ASME CLASS

 N/A 125

Dimension A

 N/A 20.63 in524 mm

Dimension B

 N/A 27.50 in699 mm

Weight

 N/A 890 lb403.6 kg

Temperature Rating

 N/A 0 to 180 ºF-18 to 82 ºC

Pressure Rating

 N/A 150 psig10.3 barg

ENDS

 N/A Flanged (FF)

Cv

 N/A 6900

Materials of Construction

Body1 N/A A126 Class B
Trim2 N/A Bronze
Seat3 N/A B584 836 - Bronze

Spring

 N/A A313 T302 Stainless Steel

Bushing

 N/A B584 836 - Bronze

Body Material

 N/A Cast Iron

Available Soft Seat Materials

Available Soft Seat Materials

 N/A Buna-N (-70 to 250ºF)

Features

N/A

  • "Short" Face-to-Face dimensions
  • One piece body
  • Spring-assisted silent closing
  • Center guided
  • Dual guided stem
  • Horizontal or vertical installation
  • Easy maintenance
  • Versatile
  • Axial flow
  • Nozzle style
  • ASME 125 & 250
    - 2 1/2" to 24" Line size (CI.125)
    - 2 1/2" to 8" Line size (CI.250)
    - Cast Iron Body
    - Bronze or 316 SS trim
    - Ends:
      - FF Flanged
    - AWWA seat leakage

Options

N/A Buna-N Soft Seat

Application

N/A Chemical Lines Cooling Towers Crude & Refined Product Lines Evaporators Generator Inlet & Discharge Hydraulic Lines Metering Pumps Mine Dewatering Process Lines Pump Discharge Vacuum Breaker Water Lines Water Treatment

  • 1 Not recommended for gas or steam service.
  • 2 316 stainless steel trim recommended for temperatures from 180°F to 200°F.
  • 3 Buna-N soft seat available for bubble-tight shutoff.