According to the environmental asked to select the auxiliary function

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Explosion-proof, non-return manually, water fog, water washout, diving, explosive environment: You must choose the appropriate explosion-proof level of the solenoid valve (my company

Existing: d II BT4, d II CT5, Ex m I / II T4)

       2, when the fluid inside bac k, you can choose my company OK71-N, OK72-N series with non-return function pneumatic auto drain.

       3, when the scene manual operation of the jiaerling pneumatic, you can choose OK71-S, OK72-S series with manual functional electrical

Magnetic valve.

       4, open-air installation or dust more occasions should be used to waterproof, dust-proof varieties (protection class IP54 or more).

       5, for the fountain must be submersible type solenoid valve (protection class IP68 and above).