Exhaust valves

Valves adapted for handling engine exhausts are increasingly demanded on the market. This suits us just fine, since we have a broad product line of exhaust valves.

Waste gate valves

The most common application for exhaust valves is pressure regulation in the engine intake. The pressure regulation occurs when exhaust are wasted beside the turbine.

In some instances a bypass valve is also used. This valve is not directly involved in regulating pressure. Instead it maintains optimum turbine rev's by regulating a gas flow bypass channel as needed.

Exhaust valves for Thermo Efficiency Systems

Increasing fuel prices have led to new designs aimed at achieving increased fuel efficiency. "Thermo Efficiency System" means that exhaust gases are channeled through an exhaust turbine connected to a generator. SOMAS valves are primarily used in connection to the exhaust turbine. An important advantage of our valves is their ability to rapidly close the exhaust gas flow if the generator load decreases. The turbine can be seriously damaged if the valve is not closed fast enough.

Thermo Efficiency Systems are most commonly found on large ships powered by low rev two-stroke diesel engines.

Submarine exhaust valves

Non-nuclear submarines are powered by combustion engines while surfaced. When the sub prepares to dive, the engine is shut off and the exhaust valves are closed by SOMAS exhaust valves.
SOMAS butterfly valves have turned out to be well suited for this task. Our valves can be supplied in a variety of special materials solving the problem of corrosion of traditional stainless materials caused by the high temperature of the exhaust gasses in combination with the chloride content of sea water.

Test benches for engine testing

During development of small diesel engines for cars, trucks and boats, test running in test benches is required both as part of development and for testing purposes. Our exhaust valves allows for adjusting the exhaust counterpressure to the desired level.