The use environment of high pressure resistant rubber expansion joints.

Rubber expansion joints have been used as flexible pipeline connections, which need to withstand as much pressure as metal pipelines, so the selection of materials for the joints as rubber products is very critical, and the use of different gums is different, depending on the use of different environments such as like: seawater, acid and alkali media, high temperature media, low temperature media, granular media, chemical media, etc. need to use different rubber materials to overcome. The high-pressure rubber expansion joint we are talking about today is a kind of high elasticity, high airtightness, media resistance and weather resistance pipe joints.
Natural rubber has good elasticity and expansion performance, which can provide sufficient and effective compensation for the displacement caused by multiple environmental influences during the operation of the pipeline. Polyester cord fabric as a high-strength pressure-resistant material as the main material of the rubber expansion joint can effectively improve the product's pressure resistance, to avoid excessive pressure causing the sphere to burst or pull off the phenomenon in the process of operation. High pressure rubber expansion joint has two specifications: loose-fitting flange high-pressure rubber expansion joint and one-piece flange high-pressure rubber expansion joint.
Loose set flange high pressure rubber expansion joint is composed of rubber body and two pieces of flange. The rubber body is made of inner and outer synthetic rubber, skeleton nylon cord fabric and pressurized steel ring, which is vulcanized at high temperature by advanced air-blowing mould process. The rubber joint produced in this way can increase the pressure of the joint, which is five times higher than the common rubber joint. Especially in the pipeline of corrosion resistance, acid and alkali resistance and oil resistance, it can show its special efficacy and improve the service life of rubber joints.
One-piece flange type high pressure rubber expansion joint is made of rubber body and two flanges through a special process, which is also made by air-blowing mold process and high temperature vulcanization, and has a super strong anti-pulling effect. If it is used in the place where the pump and valve outlets are connected to the pipeline and in the pipeline with foundation settlement, it can show its unique function of preventing pull-off, and effectively prolong the service life of the rubber joint, which brings unexpected benefits to the users.