A liquid bypass could be caused by a stuck- open expansion valve, leaky check valve, or an oversized or poorly seated fixed orifice. Recently a participant at one of my compressor diagnostic classes ...

The science pros at TKOR explain how to make a cheap and simple one-way check valve.

Check valves are installed in many piping systems. Their purpose is to allow flow in only one direction, which can be critical for plant safety and to protect equipment from damage. There are a ...

The easiest way to do this is to warm the engine up (getting the oil temp up to around 200 degrees Fahrenheit should do it), lash one intake and exhaust valve properly, allow it to cool and check ...

The most basic form of protection is the presence of an air gap in between the possible source of contamination and access to the plumbing system The atmospheric vacuum breaker consists of a check ...