What media will be allowed to pass the expansion? Expansion what media will be allowed to pass?Expansion is applicable to transport seawater and freshwater, hot and cold water, drinking water, sewage, oil, fuel oil, lubricating oil, expansion pipe product oil, air, gas, temperature is not higher than 250 degree steam and granular powder, etc.Gland loose tube joint compensation product structural design is reasonable, reliable sealing performance: adopt socket connection on both ends, installation, convenient disassembly.Perfect for conveying water, oil, gas and powdery particles of steel pipes, cast iron pipe, ductile iron pipes, PVC pipe, ABS, etc., at the same time of connecting pipe can compensate tube expansion pipe what media will be allowed to pass?Tao - set within the scope of the axial displacement and bending, and eccentric.