Flange Insert Check Valves (FIV)

Flange Insert Check Valves are the ultimate check valve in flanged systems. Designed for insertion between two mating ANSI flanges, these check valves provide the easiest and most economical way to install a check valve into a piping system. The valve body automatically positions the valve and holds it in place while bolts are being installed and tightened. All that is required are two gaskets in place of the one normally used in a flanged joint. Consult the factory for additional installation guidelines.

Material of Construction

Standard Body Materials: 316 Stainless Steel, Brass and Carbon Steel
Other Available Materials: Alloy 20, Hastelloy B, Hastelloy C, Monel, PVC, PTFE

Various seat materials are available. Standard is FDA EPDM. Please contact Valutech with further questions.

Pressure-Temperature Ratings

PTFE – ½” to 1-1/2″: Maximum Working pressure of 55 psig @ 100F. Temperature ranges from -320F to 400F
PTFE – 2″ to 6″: Maximum Working pressure of 20 psig @ 100F. Temperature ranges from -320F to 400F
PVC – 1/2″ to 6″: Maximum Working pressure of 200 psig @ 100F. Temperature ranges from 32F to 150F
Brass – 1/2″ to 4″: ANSI Class 150 & 300. Temperature ranges from -320F to 400F
Brass – 5″ to 20″: ANSI Class 150. Temperature ranges from -320F to 400F
Metal Valves – 1/2″ to 4″: ANSI Class 150, 300 & 600. Temperature ranges from -320F to 700F
Metal Valves – 5″ to 20″: ANSI Class 150. Temperature ranges from -320F to 700F .

Size Range
1/2″ to 20″