Single Sphere Expansion Joint Rubber Specification Installation Tutorial

Single Sphere Expansion Joint Rubber Specification Installation Tutorial

Shanghai Songjiang Group Company Website Introduce to you: Shanghai Songjiang Group with more than 30 years of industry experience to provide Single Sphere Expansion Joint Rubber  Specification Installation Tutorial to our old and new customers.

Single Sphere Expansion Joint Rubber is also called Single Arch Rubber Expansion Joint, Single Spool rubber pipe joint, Single Sphere Flexible Joint , Single Ball Joint, Single Sphere Rubber Expansion Joint etc. It is a kind of flexible joint between pipes or equipment. A hollow rubber sphere made of rubber as the main material, using the flexibility, high elasticity, air tightness and other characteristics of the rubber material to compensate for the displacement changes caused by the operation of pipeline equipment or thermal expansion and contraction, absorb equipment vibration, and reduce shock absorption. good effect of noise.

The single sphere tubular rubber parts are composed of inner and outer layers of rubber, cord layers and steel rings, which are vulcanized and formed and then combined with metal flanges. 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.
Because the single sphere expansion joint rubber has good comprehensive performance, it mainly plays the role of shock absorption, noise reduction and noise reduction. Therefore, it is widely used in chemical, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire protection, electric power and other basic projects.

Single Sphere Expansion Joint Rubber installation instructions:

1. It is strictly forbidden to install the Single Sphere Expansion Joint Rubber beyond the displacement limit during installation.
2. When the Single Sphere Expansion Joint Rubber is installed on the ground, suspended or vertically, the actual working axial displacement pressure of the rubber Joint is less than the supporting force of the pipeline, otherwise an anti-pull-off device should be installed to prevent it from being pulled off under pressure during work.
3. The pipeline must have fixed support or fixed bracket, and the force of the fixed bracket must be greater than the axial force. For vertical installation and overhead installation, corresponding fixing brackets and force-bearing brackets should be installed at both ends of the product to prevent the work from being pulled off after being under pressure.
4. The installation bolts should be tightened symmetrically and gradually to prevent local leakage.
5. When installing the Single Sphere Expansion Joint Rubber , keep away from the heat source, and it is strictly forbidden to use the medium that does not meet the requirements of this product.

 

Precautions for Single Sphere Expansion Joint Rubber installation:

1. The normal applicable medium for the flexible Single Sphere Expansion Joint Rubber is ordinary water with a temperature of 0-80°C. For special media such as oil, acid and alkali, high temperature and other corrosive and hard textures, the corresponding special resistant materials should be selected. Single Sphere Expansion Joints should not be used blindly or universally.
2. When installing the flexible Single Sphere Expansion Joint Rubber in the pipeline, it must be in a natural state, and do not artificially deform the product.
3. When the displacement of the pipeline is greater than or equal to the maximum compensation amount of the joint, the number of joints should be increased to parallel the displacement. It is strictly forbidden to adjust the deviation of the pipeline, so that the joint is in a state of extreme flexural displacement and deviation, and cannot exceed the limit ( telescopic, displacement, deflection, etc.)
4. It is strictly forbidden to exceed the displacement limit of the Single Sphere Expansion Joint Rubber during installation.
5. When installing the Single Sphere Expansion Joint Rubber , the screw rod of the bolt should extend to the outside of the joint, and the bolts on the end face of each flange should be repeatedly and evenly tightened according to the method of diagonal pressure to prevent pressure deviation. The mounting bolts should be symmetrical and gradually tightened under pressure to prevent local leakage. And it should be checked regularly to avoid loosening and water seepage.
6. Single Sphere Expansion Joints Rubber should be kept away from heat sources and ozone areas, and strong radiation exposure is strictly prohibited. Exposure to sunlight and use of media that do not meet the requirements of this product.
7. When using or storing Single Sphere Expansion Joints Rubber, avoid high temperature, ozone oil and acid-base environment. A sunshade frame should be built for pipes used outdoors or in the sun and wind, and it is strictly forbidden to be exposed to rain, rain and wind. The surface of the joint is strictly prohibited to be painted and wrapped with thermal insulation materials. Due to the aging problem of the Single Sphere Expansion Joint, it should be checked and replaced in time.

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