The cause of the rubber soft joint being pulled off
2022-09-23 09:49:13
The rubber soft connection is mainly composed of inner and outer rubber layers, cord layers and steel rings to form tubular rubber parts, which are formed by high temperature and high pressure vulcanization and then loosely combined with metal flanges. It is widely used in pipeline systems such as fire protection, chemical industry, pump valve, etc. It plays the role of anti-seismic and noise reduction, and absorbs the displacement generated during the operation of the pipeline.
I think everyone is more concerned about the safety of rubber soft joints. Today we mainly explain why some inferior rubber joints on the market are easily pulled off.
1. The flange and the rubber soft joint are partially pulled off: the rubber soft joint is composed of the rubber joint ball and the flange, and the flange sets the ball together through the buckle groove. If the rubber joint was originally designed to match the flange In this case, it is easy to cause the pipeline to be pulled off due to the traction force of the pipeline, which is easy to cause secondary losses.
2. When the large-diameter rubber soft joint is in use, the matching flat welding flange is a large-diameter flange, which will cause the rubber soft joint to pull up. The reason is that the sealing surface of the opposite flat welding flange and the sealing surface of the rubber soft joint are If it is not completely sealed, if the inner diameter of the matching flat welding flange exceeds the inner diameter of the rubber soft joint, it will reduce the sealing performance of the rubber soft joint, and it is easy to cause the phenomenon of support. The butterfly valve special flange should be used. The inner diameter and the rubber soft joint The inner diameter is the same.
3. If the lateral tensile force of the pipeline is relatively large, an anti-pull-off device should be installed on therubber soft joint, which can effectively protect the force of the rubber joint and avoid the rubber soft joint ball caused by the tensile force exceeding the maximum limit. of damage.
Rubber joints are also called rubber tube soft joints, flexible rubber joints, rubber soft joints, flexible rubber joints, high-pressure rubber joints, rubber shock absorbers, compensators, etc. According to the connection method, it can be divided into 3 types: loose flange type, fixed flange type and threaded type; according to the structure, it can be divided into 5 types, such as single sphere, double sphere, different diameter body, curved sphere and air pressure coil. The tubular rubber parts are composed of inner and outer layers of rubber, cord layers and steel rings, and are then loosely assembled with metal flanges or parallel joints after being vulcanized and formed. This product can reduce vibration and noise, and can compensate for thermal expansion and contraction caused by temperature changes, and is widely used in various piping systems.