7、 Long term outdoor storage will lead to corrosion of valve body and components, which can not be used normally. The ball valve shall be rain proof, waterproof and moisture-proof when stored, and the flange cover shall be tightly covered. The valves stored for more than 12 months shall be retested during use to ensure stable performance.

What are the types of pneumatic butterfly valve joints?
The joint is a kind of high-quality flexible pipeline in modern industrial pipeline. It is mainly composed of corrugated pipe, mesh sleeve and joint. Its inner tube is a spiral or annular thin-walled stainless steel bellows, and the outer mesh sleeve of the bellows is woven by stainless steel wire or steel strip according to certain parameters.
DPJ connection, structure and characteristics: DPJ external thread end connection pneumatic butterfly valve connector is an extension product of JB/GQ 0552-83 D95-5 metal connector DKJ connector, structure and characteristics: DKJ ferrule type pneumatic butterfly valve connector can connect the unthreaded steel pipe with the hose, eliminating the threading process, just screw in the screw to get the DGJ connector, structure and characteristics: DGJ self fixed pneumatic butterfly valve connector, It can connect the unthreaded steel pipe or unthreaded equipment outlet with the hose, eliminating the threading process 90 ° connector, 90 ° elbow connector: thread specification: inch thread (G)
45 degree connector, 45 degree elbow connector: thread specification: inch thread (G)
Y-shaped connector, structure and characteristics: Y-shaped three air butterfly valve connector, one end of which is connected to thin steel wire tube, and the other end of which is connected to pneumatic butterfly valve by metal connector.
T-shaped connector, structure and characteristics: T-shaped three-way pneumatic butterfly valve connector, one end of which is connected to thin steel wire tube, and the other end of which is connected to stainless steel hose connector of pneumatic butterfly valve: the end connected stainless steel hose connector is made of standard stainless steel casting, and the end connected stainless steel hose connector is tight in structure, free of pores, high in strength, firmly connected to stainless steel hose, and beautiful in appearance.