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high quality three sphere pipe fitting rubber expansion joint

Henan Liwei Industry Co.,Ltd

high quality three sphere pipe fitting rubber expansion joint

Place of Origin : China

Brand Name : Liwei

Certification : ISO9001,14001,BV,CE,SGS

Price : 150 USD

Packaging Details : wooden case

Delivery Time : 5-30 working days

Payment Terms : T/T,L/C

Supply Ability : 3000 sets/month

MOQ : 1 set

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1.Rubber expansion joint introduction:1. This product can greatly reduce pipeline system shock and noise. And can fundamentally resolve pipe joints displacement, axial stretch and non-concentricity.
2. By using different materials, it can be made many kinds to cater for different medium and environment. Such as acid resistance, alkali resistance, corrosion resistance, oil resistance and heat resistance etc.

3. The material is pure rubber, sealing is very good. It is in light weight, very easy for installation .

This producthas long lifeperformance, but must be not contact with sharp metal instruments to

avoid piercing the sphere.

4. The product can be used for lift and transportation of raw water and sewage, transportation of water supply cooling cycle water thermal power ,condensate water of metallurgy industry and chemical industry.

2.Rubber expansion jointclassification
(1) According to appearance: concentric with diameter rubber expansion joint, concentric reducer rubber expansion joint, eccentric reducer rubber expansion joint.
(2) According to the structure: single ball flexible rubber expansion joint, double sphere rubber expansion joint, spheres rubber expansion joint, elbow sphere rubber expansion joint.
(3) According to the link the form: flange rubber expansion joint, threaded rubber expansion joint.

3.Rubber expansion jointmaterial list:





Inner rubber



Outer rubber



Framework layer

Polyester cord fabric





Reinforcing ring

Steel wire rope

4.Rubber expansion joint production progress:

(1) Raw material:we never use reclaimed raw rubber, rubber is imported from USA. Before used, raw material should be tested, including physical test and some chemical experiment to test the hardness and so on;

(2) Rubber pretreating and ingredients;

(3) Milling: first, rubber plastication, second, rubber mixing, we will add rubber compounds, like sulfurzing reagent, surfactant, softener, stabilizer, foaming agent and some special compounds, at the same time, rubber will be extruded into plates, cut, produce 45 degree angle. The plates cannot directly be used , they should be cooled about 24 hours.

(4) Molding: it will cost much time;

(5) Vulcanizing: the largest vulcanizing tank in Asia ø5000*15000, right time, temperature, pressure is very important;

(6) Test and experiment: these tests should be done, hydraulic test, resistance to vacuum, displacement of the performance, rubber physical properties, thickness and the strength and other quality test

(7) Package: out package the free of fumigation wooden case; inside package: plastic film and textile membrane.

Product Tags:

expansion joint


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