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 few ...

A new program from UGI aims to convince owners of older homes to install an inexpensive safety valve to prevent fires or explosions. It's called the excess flow valve. "It's a safety device that is ...

Directional-control valves are common in pneumatic systems. They control compressed-air flow to cylinders, rotary actuators, grippers, and other mechanisms in packaging, handling, assembly, and ...