Introduction to the working principle and usage method of electric switching valve

The video shows the electric switching valveapplicationPrinciple.

Six port electric switching valveapplicationprinciple

Position 1, the sample passes through and fills the external quantitative tube to complete the sampling state,At this moment, another pathwayThe carrier gas purging chromatography column plays a role in cleaning the gas path.

Switch position 2,The carrier gas sends the sample from the quantitative tube into the chromatographic column, completing the injection processAt this point, the sample gas path is vented.

Usage of electric switching valve：

aConnect the power cord.The voltage value must be consistent with the required driving voltage of the connected motor-Don't connect it incorrectly. There should be a reset action when the power is turned on(The action of the valve can be observed through the observation hole)

bControl methodThere are two types: voltage control. When the voltage is low, the driver rotates forward; When high, the driver reverses. Switch control, the driver reverses when short circuited, and rotates forward when two control wires are disconnected.

C should ensureInput gas sourceThe gas is pure and dry. Prevent oil stains, dust, and mechanical impurities from entering the valve body.