In terms of material, it can be divided into: carbon steel ball valve, stainless steel 304 ball valve, 316 ball valve and copper ball valve

For the material selection of bellows used for heat supply network, in addition to the working medium, working temperature and external environment, the possibility of stress corrosion, the impact of water treatment agent and pipeline cleaning agent on the data, etc. should also be considered, and on this basis, the welding and forming of bellows data and the performance price ratio of data should be separated, The rotary compensator selects the economic and applicable bellows manufacturing information.
Variety of bellows compensator: bellows mainly include metal bellows, corrugated contraction joints, corrugated heat exchange tubes, diaphragm bellows and pneumatic butterfly valves. Metal bellows are mainly used to compensate the thermal deformation, shock absorption and absorption of pipeline settlement deformation of cranes, and are widely used in petrochemical, instrument, aerospace, chemical, power, cement, metallurgy and other industries. Corrugated pipes made of plastic and other materials play an irreplaceable role in media escort, power threading, machine tools, household appliances and other fields. It is a cylindrical thin-walled folded shell with multiple transverse corrugations. The bellows is elastic and can produce displacement under the action of pressure, axial force, transverse force or bending moment.