Negative pressure resistant rubber expansion joint.

The rubber sphere of the negative pressure resistant rubber expansion joint is composed of inner rubber layer, raising layer with double scraping nitrile curtain cloth, outer rubber layer compound type of rubber. According to the material taken is different, there are natural rubber, styrene butadiene rubber, butyl rubber, butyl rubber, EPDM rubber, neoprene, silicone, fluorine rubber these. They have high temperature resistance, corrosion resistance, wear resistance, acid and alkali resistance, etc.
 
Negative pressure resistant rubber expansion joints have smooth appearance, small bending radius, the smaller pressure of various single ball negative pressure resistant rubber expansion joints is three times the working pressure, single ball negative pressure resistant rubber expansion joints function is good oil resistance, heat resistance and aging resistance, high pressure, good pulse function.
The negative pressure resistant rubber expansion joint is a shock absorber for the negative pressure pipeline of vacuum pump. Generally, the rubber joint at the entrance of centrifugal water pump is very easy to suck flat, so we have released a negative pressure rubber joint for vacuum pump, which is suitable for pipeline to reduce vibration, reduce noise, good elasticity and easy to use.
 
Negative pressure resistant rubber expansion joint in the work is to use the flexibility of the rubber sphere to compensate for the problem of ground settlement in the long distance of pipeline caused by the sinking of the pipeline resulting in poor sealing and axial concentricity deviation. Therefore, negative pressure resistant rubber joints are indispensable accessories in pipelines. The stress concentration brought by ground settlement is well absorbed by negative pressure resistant rubber joints, which avoids the fatigue of pipeline materials caused by stress concentration to the extent that the material aging pipeline causes water leakage accidents.