The water-cooled version of the standard three-way purge valve was specifically designed to provide gas turbine owners currently utilizing three-way purge valves with a means of eliminating coke formation so that refurbishments occur during hot gas path inspections.

Design Features & Benefits                                           

Upgrading existing three-way purge valves to water cooled during refurbishment  
Improve liquid fuel system operational capability and realiability to 95% or better              
Benefit from maintenance intervals which coincide with hot gas path inspections   
Utilizes existing water system                                         
Operating pressure to 1500 PSIG                                    
ANSI Class Six internal seal leakage of air or fuel            
Thermally compatible Vespel seal and crushed gasket     

Primary Materials                                                         

Stainless Steel                                                               
Cold Rolled Steel                                                           
Vespel Dynamic Seals                                                   
Copper Crush Gaskets                                                   

Product Specifications
Water Specs
Temperature: +40 to +150 °F
Flow Rate: 2.0 GPM minimum
Pressure Drop: 20 PSID (typ)

Pilot Air Specs
Pressure: 0-95 PSIG
Temperature: -30 to +300 °F

Purge Air Specs
Pressure: 0-300 PSIG
Temperature: -30 to +400 °F
Flow Rate: 0-0.05 lbs/sec @ 0.5 PSID

Fuel Specs
Fuel Type: Diesel, Jet Fuel
Operating Pressure: 0-1225 PSIG
Operating Temperature: 0 to +250 °F
Flow Rate: 0-20 GPM @ 50 PSID max.

Environmental Specs
Temperature: 0 to +250 °F