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Quick Details

  • Material: rubber
  • Technics: molding
  • Type: rubber joint
  • Place of Origin: Henan, China (Mainland)
  • Model Number: rubber pipe flexible joints ZXTQ1F
  • Brand Name: ZHW
  • Connection: Flange
  • Shape: Equal
  • Head Code: Round
  • product name: expansion joint
  • quality control: accept third party inspection
  • guarantee period: 1 year
  • certificates: ISO9001 , ISO14001
  • partner: FLSmidth Co.A/S
  • OEM produce: accept
  • color: black
  • sizes: DN25mm~DN5000mm
  • alogation (under pressure): 5mm ~70mm
  • compression(under pressure): 5mm~70mm

Packaging & Delivery

Packaging Details Standard carbon box, wooden caseor as per customers' requirements expansion joint.
Delivery Time Within 15 days after received the payment

expansion joint




expansion joint, rubber expansion joint, double sphere rubber expansion joint



1. Basic Information


expansion joint are ideal in heating and air conditioning systems, where low initial cost and maximum reliability are a must.


The flexible connectors have EPDM cover, providing excellent resistance to sunlight, ozone, oxidation and is resistant to damage from dropping oil.


The unit has EPDM tube, which is good for hot, and cold-water service & mild chemicals.

The fully molded Single Sphere design provides greater flexibility, thus protecting mating flanges, especially PVC  and fiberglass types.


The steel flanges easily rotate on the bellows,which makes it easier to line up the bolt holes during installation when mating flanges are out of line.


Separate retaining rings are never required. With a temperature rating of -20°C

 to 100° C ., the standard sizes range from 1" through 12" I.D. can be with the working pressure at 300 psi, Sizes 14" through 24" have working pressure at 150 psi.




2. Features of expansion joint


1. Absorb Pipe/Movement/Stress.   

2. Decrease Systems Noise.    

3. Isolate Vibration.

4. Compensate alignment/offset    

5. Eliminate Electrolysis

6. Protect Against Start up / Surge Forces




3. Application of expansion joint


- Air Conditioning-Heating and Ventilating System
- Chemical-Petrochemical and Industrial Process Piping System
- Power  Generating System
- Material Service
- Pulp&Paper System
- Water-Wastwater Sewage and Pollution Control System


 4. Materials of expansion joint






Inner rubber lining



Outer rubber lining



Casing ply

Polyester cord frbrica



Q235A,stainless steel


Strengthening ring




Q235A,stainless steel


Limit bar

Q235A,35#,stainless steel



Q235A,35#,stainless steel


5. Application Photo



Our Services


6. Why Us


1. Use of Products: We have specialized in pipeline equipment system for over 12 years with professional technology and competitive price. Our product is mainly used as the pipe line for city governments petrify, chemical industry, metallurgy, petroleum, chemistry, ships, light industries, environment protection and in the country slurry education from copper mine and other ore mine exploitation.


2. R&D: Our chief engineer has 20 years research experience in the Japan-Funded Rubber Products Enterprises. All of our engineers will be trained in big enterprises to develop their ability for one month per year. Most important of all is that they get many credits in the trade associations every year.


3. Achievement: We cooperate with Top5 electric power company in China. At the same time we also cooperate with the international well-known company, such as: FLSMidth, AH Industries, PLN and AQUA engineering and etc.


Our product expansion joint is of high quality and best after sales service. Please believe, we do achieve win-win

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China (Mainland) | Manufacturer, Trading Company
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Supplier's Trade Assurance Limit: US $29,000
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