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Question:

What are the several points of the electromagnetic valve?

What are the several points of the electromagnetic valve?

Answer:

Therefore, the two bit three pass refers to the spool has two positions, 3 ports of the solenoid valve
Tong means the passage of gas, usually the valve with several mouths
Position refers to the spool position: two is the spool has two positions, the three is that there are three positions, more than one in the middle position
Three position four pass means that the valve core has three positions, four ports (and possibly five mouths). The difference between the five and the four is that the four ports take the two exhaust ports into one

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