Guides pratiques et tutoriels

A vacuum ball valve is a quarter-turn ball valve built to hold a seal when the pressure inside the line is far below atmospheric. One 90° turn isolates a pump, a foreline or a gauge, and in the open position the full bore leaves the gas path almost untouched. It is a sound choice for

A pneumatic actuator ball valve (often listed as a pneumatic actuated ball valve) is specified by seven decisions: the valve series and size, the end connection, double acting or spring return, the fail position, the solenoid valve and its coil voltage, the temperature, and the air supply. The two charts below cover our own valve

A 3 piece ball valve manufacturer is easy to find and hard to check. Most quotes arrive with a photo, a size, a grade and a price, and nothing on that page tells you whether the factory behind it makes the valve, tests it, or can show you what is inside. This guide is the