|What is a solenoid valve?||
A solenoid valve is an electromechanical valve for use with liquid or gas. The valve is controlled by an electric current through a solenoid coil.
|What is a solenoid valve constitued of?||A solenoid valve is made up of three parts, the solenoid, the pilot and, the valve body.
The body is the main part of the solenoid valve with the ports, seats and orifice passages. In almost all Parker products the bodies are made of brass stampings, while other materials such as below are used in some special versions.
The coil can be different:
|What is a pole piece?||
This acts as a stop for the moveable plunger (=MP) and it is used to shield the magnetic flow. (Usually made of magnetic stainless steel).
|What types of seal materials are offered on Parker's solendoid valves?||
NBR (nitrile butadene rubber)
EPDM (ethylene propylene)
|What is water / fluid hammer?||
Water hammer (or, more generally, fluid hammer) is a pressure surge or wave resulting when a fluid in motion is forced to stop. This commonly occurs when a valve is closed suddenly at an end of a pipeline system, and a pressure wave propagates in the pipe. It may also be known as hydraulic shock. This pressure wave can cause major problems, from noise and vibration to pipe collapse