Solenoid Valve structure characteristics
Heat resistance: electromagnetic parts, sealing parts use special high temperature electrical materials and sealing materials, and adopt various heat preservation measures.
Wear resistance: The material is selected reasonably, and the valve cup and guide sleeve cleverly use the fluid to reduce wear.
Anti-condensation ability: The condensate in the steam pipeline is an important factor affecting the action of the steam solenoid valve. The valve is not affected by the condensate.
The valve is a pilot secondary opening solenoid valve consisting of two parts: the secondary valve and the main valve. The on-off of the main valve is controlled by the opening and closing of the secondary valve. According to the different switch states, when the power is off can be divided into normally closed solenoid valve and normally open solenoid valve. Normally closed solenoid valve, when the segment point is in the normal position, the auxiliary valve port is closed, and the main valve is open. When the electrical signal enters the pilot valve coil, the movable iron core is affected by electromagnetic force, and the auxiliary valve port opens, the pressure conduction velocity in the main valve cup disappears, and the medium pressure on the main valve cup holder, the main valve opens, and the working medium can circulate. However, when the signal number disappears, the movable iron core is reset, the auxiliary valve port is closed, and the working medium enters the valve from the balance hole. When the pressure tends to be balanced, the three-position five-way solenoid valve relies on the main valve spring, the weight of the valve Cup and the medium pressure make the valve cup move down, closing the main valve port, the valve is closed. Normally open solenoid valve, when the power is off, there is a spring, the auxiliary valve port is opened, and the main valve circulates. When the electrical signal enters the auxiliary valve coil, the movable iron core is driven by electromagnetic action. When the pressure tends to be balanced, the main valve spring, Valve cup weight and medium pressure make the valve cup move downward, close the valve port, the valve is closed. After the main valve is de-energized, the electromagnetic force disappears, The auxiliary valve to open, the pressure in the main valve Cup quickly disappeared, the medium pressure makes the main valve valve valve on the cup holder, the main valve opening, the medium circulation, the valve is open.