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Question:

A pneumatic valve is running, if the spool and stem off, what will happen?

A pneumatic valve is running, if the spool and stem off, what will happen?

Answer:

For the following reasons:A, spool, seat sealing surface wear seriously;B, valve, valve seat, see a foreign body stuck;
Jul 19, 2017
C, the valve head leaks;The D and the zero spring are too large;E, the stem is too short;F, the pressure difference between the valve is too large;
Jul 19, 2017
G, with valve positioner, you need to check whether the locator output can reach maximum value.
Jul 19, 2017

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