Brand : Gruvlok
End Connection : Grooved
Manufacturer Name : Gruvlok
Material : Ductile Iron
Valve Size : 4"
- Check Valve
- Type Horizontal/Vertical Swing
- Applicable Standard MSS SP-71
- Nominal Size 4"
- Cap Style Bolted
- End Connection Grooved x Grooved
- End to End Distance 9.63"
- Body Material ASTM A536 Black Ductile Iron
- Disc Material Stainless Steel
- Cap Material Ductile Iron
- Spring Material Stainless Steel
- Seat Material Nickel Plated
- Seal Material EPDM
- Pressure Rating 300 PSI
- Inclusions/Features Spring Loaded Clapper
- Application Water
- Lead-Free
- Outside Diameter 4.5"
- Cover Bolt Torque 50 Lb-Ft
- Weight 25 Lb
- Warranty 10 Year Limited
- Specification Sheet
- The Gruvlok Series 7800 Check Valve is a compact, cost effective valve offering low pressure-drop, non-slam performance. The Series 7800 Check Valve assembly is lighter and faster to install, and costs less than flanged and wafer valve assemblies. In the fully open position the Series 7800 swing clapper is held tightly against the valve body, out of the flow stream, to provide maximum flow area and prevention of clapper flutter. The clapper design produces quick, non-slam closure before flow reversal can occur, while meeting FM requirements for an anti-water hammer valve rating. Each valve is hydrostatically tested for leak tightness to 500 PSI. The clapper-seat design permits leak free sealing of back pressures in service conditions ranging from 300 PSI (20.7 bar) to as low as 1 PSI (0.07 bar) (head pressure 28").
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