Engine Valves for American Diesel Engines
Empower engine valves – the trusted name widely in use on Caterpillar, Cummins, Detroit, Mack, Case, IHC & J Deere diesel and gas engines.
A precision part with a long stem requiring care when handling. In operation, at temperatures in excess of 600°C valves open and close 17 times per second (@ 2000 RPM) to allow the air charge/exhaust gas to pass through. The heat must then transfer to the seat and cyl head in the millisecond the valve is closed. For this reason only premium products will endure this environment. Valve life also depends on correct installation and sealing, correct valve lash and engine assembly, scheduled maintenance, correct fuel grade and proper engine function.
Empower valves utilize enduring materials such as austenitic and martensitic steels, nickel base super alloys which include cobalt, iron & nickel base facing alloys. They are manufactured to blue prints which include special alloys like silchrome, pyromet, inconel, tribaloy and others to meet the demand of the application – this includes heavy duty gas engines. Some have two or more different materials in the one valve while others use induction hardened heads or stellite faced seats and/or tips. Valve stems in most late model engines have an electro-deposition of chrome to reduce wear and afford a good running surface for the stem seal.