The single-sphere joint utilizes the advantages of rubber, such as elasticity, high airtightness, media resistance, weather resistance, and radiation resistance. It is made by compounding high-strength, cold and heat-stable polyester cord fabric with rubber in a bias pattern, followed by high-pressure, high-temperature mold vulcanization.

The single-sphere rubber joint consists of a fabric-reinforced rubber component and a flat union. It is a pipe joint with high elasticity, high airtightness, media resistance, and weather resistance. It is mainly used to reduce pipeline vibration, lower noise, has good flexibility, and is easy to use.

Due to its numerous advantages, single-sphere rubber joints are being widely used, making their installation and maintenance crucial. Let's take a closer look at how to operate them.

1. When installing flexible single-sphere rubber joints in pipelines, they must be allowed to remain in their natural state. Avoid artificially deforming the product during installation. This prevents premature damage and reduced performance.

2. If you are designing to install this product near the outlet of a water pump, at a pipe bend, or in high-pressure, high-rise building applications, the pipeline must have fixed supports or brackets (the force on the fixed supports and brackets must be greater than the axial force). Otherwise, the product should be equipped with an anti-pull-out limiting device.

3. When installing flanged rubber joints, ensure that the reinforcing rings (the protruding parts with internal steel wire ropes) at both ends of the sphere are fully engaged in the flange groove to prevent the sphere from pulling away from the flange under pressure. When tightening the bolts, first tighten the symmetrical bolts (six or four) to ensure the sphere and flange are fully in place.

4. When connecting a single-sphere rubber joint to a pipe flange, the bolt threads should extend towards the flange end to prevent damage to the arched portion of the rubber joint under pressure. Bolts at each end must be tightened symmetrically to ensure consistent tightness. In harsh environments, in addition to flat washers, spring washers should be added to prevent the nuts from loosening.

5. When using a single-sphere rubber joint near the outlet of a water (oil) pump or under conditions of frequent start-stop operation, limiting devices should be added to both ends of the flange to reduce the impact of excessive stretching and compression of the rubber joint on the pump and pipeline.

6. When installing large-diameter rubber joints, to facilitate installation and reduce labor intensity, a short pipe of appropriate length should be fabricated at one end of the flange. After the rubber joint is connected to the short pipe and the other end of the pipe, the short pipe should be welded to the corresponding long pipe.

7. To mitigate radial deviation caused by welding deformation of the short pipe, temporarily weld the flanges at both ends of the pipe using round steel or other metal of equivalent strength before welding. This creates a rigid connection between the rubber joint and the flange. After the short pipe welding is completed, remove the welded material to allow the rubber joint to rest in its natural state after installation.

8. When temporarily welding the metal connection to the flange, remember to cover the rubber joint at the weld with a covering to prevent damage to the sphere during welding.