1 check Industrial Valves should be stored in dry and ventilated room, moisture, rain, rust.

2 check storage or transport open-close part should be in closing device, at the same time, should do the following work:

a non-return valve disc should be fixed in the open position

b check valve size at both ends in the mouth with foam board blockage, port must use blank cap plugged, dust, rust, keep the passage clean and face smooth;

c cylinder parts proper packaging protection, shockproof and waterproof touch;

d check place should be smooth, not by each other.

3 should be regularly check the check valve is placed for a long time. Every three months for two channels, seal surface dirt and rust, welding mouth check the situation of the protection, wipe the dirt and rust, besmear again the rust-proof protection.

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