2018年9月20日星期四

single coil solenoid valve electric current through the coil creates a magnetic field

solenoid valve is an electromechanical controlled valve. single coil solenoid valve features a solenoid, which is an electric coil with a movable ferromagnetic core in its centre. This core is called the plunger. In rest position, the plunger closes off a small orifice. An electric current through the coil creates a magnetic field. The magnetic field exerts a force on the plunger. As a result, the plunger is pulled toward the centre of the coil so that the orifice opens. This is the basic principle that is used to open and close solenoid valves.

2018年9月6日星期四

Toggle valve has an automatic thermal protector

toggle valve has an automatic thermal protector and operates in the black range for maximum life. toggle valve is a compact design for normally closed and quick on/off service. Moving the handle 90 degrees upwards opens the valve to full flow and stops it firmly in the open position. Shifting the handle position downwards shuts off the valve by spring return. The PTFE soft seat at the tip of the stem provides a positive repetitive seal. solenoid directional valve on and off settings determines whether or not fluid flows past the valve. Well-designed toggle valve should possess the quality that it hinders flow completely when closed while allowing nearly unaffected flow when open. Main goal of a toddle valve is to minimize the effect of pressure when in open position.