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Double Spheres Rubber Expansion Joint

Double sphere rubber expansion joint supporting JIS/ANSI/DIN/150LB standard flange connections

Place of Origin:China
Brand Name:Jinhongda
Model Number:DN50-DN400
Certification:ISO & CE
Minimum Order Quantity:1
Packaging Details:The inner package is carton and the outer package is wooden case
Delivery Time:Depends on the specific quantity
Payment Terms:transfers and letters of credit
Supply Ability:4000 units a month

● 1,double ball rubber expansion joint,

● 2,Used for shock absorption at pipe joints

● 3,size:DN50-DN400

Rubber material:NR/NBR/EPDM

flange material:carbon steel/cast steel/ss304

Flange standard:ANSI/JIS10K/150LB/DIN



Material of each components

2Inner & Outer RubberNR,CR,IIR,NBR,FKM,EPDM,PTFE
3Body CarcassNylon cord fabric
4Reinforcing RingMulti-strand coppering steel wire
5FlangeCast and forged carbon steel(Q235).
Stainless steel(201,304,316,321)

Main connecting dimension

Working pressure(Mpa) if media is oil,acid or alkali
B. If special requirements for working temperature
C. If OEM orders with drawing or samples
D. Please inform us about when ordering
Burst pressure(Mpa)
Applicable temperature-20℃~+115℃
Applicable mediumWater,sea water,oil,acid,alkali,etc.


1,for special order,products can be made according to customer’s requirement,flange standard is based on GB/T9119-2000(Optional ANSI,DIN,BSEN,NF,EN,JIS,SO etc).the balls can be made for NR,EPDM,CR,ZZR,NBR,FKM.

2,The product is available for overhead water-supplying.the pipe must equipped with fixed supper or fixed bracket,if not,the produce shall be installed with Anti pull off device.



The double ball rubber flexible joint perfectly makes up for the problem that the single ball rubber flexible joint cannot be installed due to its length. At the same time, its structural material is rubber impregnated nylon cord fabric, and its internal and external surfaces are made of high-strength aging resistant polar rubber materials. Because the expansion joints of many pipes are different in design, the characteristics of KXT single ball rubber soft joint can not meet the requirements of pipe expansion joints in the use of single ball rubber soft joint. Therefore, double ball rubber soft joint is required to make up for the shortcomings of single ball acid and alkali resistant rubber soft joint in terms of installation length and expansion.

Competitive Advantage

Our company uses the most advanced automation equipment in the production of rubber joints, and has many years of production experience. Strictly control the raw materials and production process in the production process to ensure the quality of products. The products are exported to Spain, Russia, Pakistan, Egypt, Vietnam, Malaysia, Thailand and other countries.

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