The service life of bendable rubber expansion joint.

Bendable rubber expansion joint has the characteristics of high pressure resistance, good elasticity, large displacement, balance pipeline deviation, absorb vibration, reduce noise effect, easy installation, etc. It can be widely used in water supply and drainage, circulating water, HVAC, fire fighting, paper making, pharmaceutical, petrochemical, ship, pump, compressor, fan and other pipeline systems.
Rubber expansion joint it also has its own service life, in the process of storage and use, due to the combination of internal and external factors caused by the physical and chemical properties of rubber and mechanical properties of the gradual deterioration.
Flexible rubber expansion joint general use of about 3 years -5 years, the use of harsh environments in a year for repair and replacement, but also need to be regularly checked if found broken or cracked, the need to replace the broken flexural rubber expansion joint. Rubber joint expansion joint can achieve the compensation of pipeline axial displacement, and can greatly reduce the axial thrust of the pipeline operation, thus extending the service life of the pipeline. Installation of formal and accurate can also extend the service life: when the pipeline displacement is greater than or equal to the large compensation of the joint, the number of joints should be increased to parallel the displacement, it is strictly forbidden to make the joint at the limit of flexural displacement and deviation state in order to adjust the super-difference of the pipeline, not to mention the super-limit expansion, displacement, deflection, etc.
Special media such as: oil, acid and alkali, high temperature and other corrosive and hard texture, should choose the corresponding special resistant material rubber expansion joint, not blindly string or general, otherwise it will greatly reduce the service life.