Gas emergency cut-off valve matters need attention

Gas emergency cut-off valve using note:

(1) when the valve should be keeping with various foreign pathways plug or cover closed, stored in a dry ventilated house, long-term storage should always check, eliminate dirt, and in processing surface coating, prevent oily-type rust.

(2) before installation should will this valve fire clean, will each thread connection screw.

(3) this valve USES the check valve principle, only one-way truncation, installation must pay attention to the valve symbol, as the valve inlet protection one end.

(5) must make proper use of the valve

(4) order must indicate sealing surface forms, working pressure flanges.