The difference between rubber expansion joint and metal compensator.

Metal compensator, also known as metal expansion joint, is divided into: corrugated compensator, sleeve compensator, rotating compensator, and pipe expansion joint. Among them, the corrugated compensator is more commonly used, mainly to ensure the safe operation of the pipeline, with the following roles: 1 . Compensation to absorb pipeline axial, lateral, angular thermal deformation. 2 . Absorb equipment vibration, reduce the impact of equipment vibration on the pipeline. 3 . Absorb the deformation of pipeline by earthquake and ground subsidence.
Rubber expansion joint is a hollow rubber product used as a flexible connection between metal pipes. According to the connection method, there are three types: loose flange type, fixed flange type and threaded type; according to the structure, it can be divided into single sphere, double sphere, bent sphere, etc. It is composed of inner and outer rubber, cord fabric layer and steel wire ring as tubular rubber parts, which are vulcanized and then loosely combined with metal flange or parallel joint. It can reduce vibration and noise, and can compensate for thermal expansion and contraction caused by temperature changes, and is widely used in various pipeline systems.
Rubber expansion joint is a kind of pipeline joint with high elasticity, high airtightness, medium resistance and weather resistance. The product utilizes the advantages of rubber's elasticity, high airtightness, media resistance, weather resistance and radiation resistance, etc. It is made of high strength, cold and heat stable polyester cord fabric twill intersection and its compound, and then vulcanized by high pressure and high temperature mold.
Rubber expansion joint has good comprehensive performance, mainly plays the role of vibration damping, muffling and noise reduction. So it is widely used in chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire fighting, electric power and other basic projects.