The Introduction of Three Solenoid Valves

1. Direct-acting solenoid valve: Principle: power, the electromagneticPneumatic and electric diaphragm pumpscoil of electromagnetic force to close the cases filed from the seat on the valve to open; power, the electromagnetic force disappears, the spring pressure to close cases in the seat, the valve closed. Features: in a vacuum, negative pressure, zero pressure when working properly, but the path is generally not more than 25mm. 2. Distribution of direct-acting solenoid valve: Principle: It is a direct-acting and pilot-style combination of theory, there is no pressure when the inlet and outlet, the power, the electromagnetic force directly to the pilot valve andSlurry pumps main valve closure of small pieces turn upward, the valve opens. When the entrance and exit to start the pressure difference, the power, the electromagnetic force small pilot valve, main valve chamber under increased pressure, the chamber pressure drops, which use pressure to push up the main valve; power, the pilot valve with a spring or to medium pressure to promote the closure of parts, moving down to the valve closed. Features: zero pressure or vacuum, hypertension can also be action, but the power is larger, the level required to be installed. 3. Pilot solenoid valve: Principle: power, the electromagnetic force to open the pilot hole, the chamber pressure to drop rapidlyOther pumps formed around the closure on the lower parts of high pressure, fluid pressure to promote the closure of parts moving up, the valve opens; power, the spring force to pilot hole closed, the inlet pressure chamber through the bypass hole quickly formed around the valve off under the high pressure low on fluid pressure to promote the closure of parts moving down, close the valve. Features: limit the scope of a high fluid pressure can be any installation (required custom), but must meet the conditions of fluid pressure. Source: Valvehardware