①If the valve body is lined with anticorrosive lining, it should be made of corrosion-resistant cushion when installed on the pipeline, and be careful not to damage the valve body flange sealing surface. ② diaphragm storage, should be installed in the bag, on the wooden shelves, to avoid direct sun exposure and contact ozone, heavy objects can not be stacked. ③ valve storage, should be fully open state, to ensure that the diaphragm is stress-free state, especially the spring-off type diaphragm valve should pay more attention to this point. The valve flange ends should be sealed with paper to prevent moisture and dirt from entering. ④ valve in use, can not be over-closed, once the diaphragm pressure valve body weir surface can be. Valve opening speed is not too fast, too fast load forces will be added to the diaphragm screw, the diaphragm will be damaged. ⑤ on the diaphragm and lining should be regularly inspected to prevent corrosion and tear damage to other parts and cause accidents. ⑥ remove and replace the valve, the fluid should be cut off on both sides, drain raffles, and good personal protection (wear protective clothing, masks, gloves, etc.) to prevent corrosive fluid on the human injury.
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