Compressor bleed valves are essential components in the high pressure diesel and aviation industries. A bleed valve that is blown open can have catastrophic consequences for engines which are not designed to handle this kind of an environment. The main purpose of a compressor bleed valve is to prevent excessive pressure build up within the engine at the expense of life and safety. Some common types of engines include condensate storage tanks, turbo diesel, and low pressure diesel.
There are different types of compressor bleed valves which you can choose from depending on the type of engine you use. One of the most commonly used is the simple blow off valve, which only contains a P-groove in the blade opening. A typical variation is the Compressor Bleed valve which has a P-grooved in the shut line. The difference between these two types of valves is the groove that is used to force the air down through the cylinder. A P-grooved P-groove works similarly to a simple switch, only that it has a little bit more control and power than a simple switch. As the pressure builds up in the system, the engine will automatically come on. This will cause the engine to generate much more power than usual, which is why these types of valves are so important.
Compressors in your engine may leak air out of the cylinders due to temperature, pressure, or simply because the engine is working under normal conditions. When you feel the pressure build up and the engine does not start, this could be one of the first signs that a compressor bleed valve is working properly. The best way to test whether the valves are working properly is to make sure the bleed from both the P-groove and the Shut Line is equal, and to run both valves at the same time.