ENGINE VALVE

Engine valves are special mechanical component designed to use in two-stroke and four-stroke internal combustion engines, which controls flow of fluids or gases into and from combustion chambers during operation. By function, there are only two types of valves, inlet valve and exhaust valve. Inlet valves allow proper mixture of air and fuel to enter in combustion chamber, while exhaust valve opens to escape gases produced after combustion of air and fuel in camber. Inlet valve is exposed to low thermal stress, but exhaust valve had to undergo high thermal and mechanical stress due to its operation under high temperate and pressure.

Generally, inlet valves are made of martensitic steels and exhaust valve are made of austenitic steels or high alloy steels. Based on its design, material and application, valves can be monometallic, entirely fabricated from a single metal, or bimetallic, fabricated using friction welding process to have property austenitic head and martensitic stem.

The highest point of thermal impact is on valve face seat, which are sometimes induction hardened or welded by cobalt alloy for long lasting. To improve its mechanical properties, valves are coated with chromium coating, phosphate coating and nitride coating. For better surface finishing, they are also swirl polished.

SSV understand that engine valve is a vital component in every single engine, which bear heavy load to offer great performance using different fuels such us gasoline, diesel, kerosene, heavy fuel oil (HFO), dual fuel, marine diesel oil (MDO), compress natural gas (CNG), natural gas and land fill gas. We serve purpose of every client whether its engine rebuilder, engine maker, original equipment manufacturer, overhauling companies, refurbishes or traders. We ensure that every valve produced are quality checked thoroughly.

Monometallic Valve

Chromium Plated Valve

Nimonic Valves

Bimetallic Valve

Phosphate Plated Valve

Inconel Valve

Hard Seat Face Stellite Valve

Black Nitride Plated Valve

Tribaloy Valve

Hard Tip Stellite Valve

Swirl Finish Valve

Titanium Valves