Purge Air Check Valve

purge air check valve for dual fuel gas turbine engine reliability

JASC has manufactured and shipped over 12,000 Purge Air Check Valves for use on heavy-duty gas turbine engines used in power generation.

The JASC Purge Air Check Valve is designed for continuous through-air operation with air temperature in excess of 400° F and operating pressure up to 1200 PSIG. JASC’s Purge Air Check Valve is designed to operate on water, Stoddard solvent, naphtha, jet fuel, diesel fuel, synthetic oil and hydraulic oil.

The JASC Purge Air Check Valve is contamination tolerant, chatter resistant and provides an ANSI Class 6 zero-leak seal in the check direction. JASC’s Purge Air Check Valve provides toggle action when opening and closing to prevent the check valve from experiencing high frequency oscillation and premature wear of the valve internals.

To ensure the JASC’s Purge Air Check Valves meet the customer’s unique performance specifications, JASC rigorously tests each valve.

JASC’s Purge Air Check Valves can be refurbished indefinitely, returning the valve to its original operating condition. This lowers total cost of ownership significantly over purge air check valves that can’t be refurbished.

Specifications
Operating Pressure 1200 PSIG
Operating Temperature -65 to + 600 °F
Check Pressure 0-1225 PSID
Maximum Ambient Temperature 400 °F
Soak Temperature 700 °F
Maximum Pressure Drop 5 to 8 PSID (various available)
Flow Rate Various available
Inlet Temperature 0 °F to 300 °F
Inlet Pressure Various (inquire)
Fuel Type Stoddard Solvent, Jet Fuels,
Hydraulic oil, synthetic oil, Air
Construction Material Stainless Steel, Vespel
Weight .5 lbs
Part # Flow (lbs/sec) Crack Pressure (psid) Frame
101284-1 0-0.05 1.0 MAX 5P, 6B, 6B-DLN
101265-1 0-0.06 1.0 MAX 7EA, 9E, 7FA, 9FA
101258-1 0-0.127 1.0 MAX 7FA-MW, 9FA, 6B-DLNP, 9E-MW
101232-2 0-0.06 1.0 MAX 7EA, 9E, 7FA, 9FA
101316-1 0-0.125 5.0 +/- 0.5 Standard Combustor
101336-1 0-0.125 5.0 +/- 0.5 Standard Combustor

purge air check valve cutaway
purge air check valve drawing