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Quick Details

  • Material: Carbon Steel
  • Technics: Forged
  • Type: Coupling
  • Place of Origin: Guangdong, China (Mainland)
  • Model Number: JF rubber expansion joint
  • Brand Name: Hong chang Jufa
  • Connection: Female
  • Shape: Equal
  • Head Code: round
  • max temperature: ≤200℃
  • connection type: flanged end or threaded end
  • layer: Single sphere or double sphere
  • product name: rubber coupling joint
  • pressure: PN10 PN16 PN25
  • Fatigue frequency: ≥5000 times
  • customized: yes
  • flange material: carbon steel/stainless steel
  • body material: NR/NBR/EPDM Body
  • kind: pipe fitting

Packaging & Delivery

Packaging Details carton box, then into plywood case for your rubber coupling joint
Delivery Time 5-7-14 days after confirm payment


EPDM material double sphere union connector rubber coupling joint


Operating Data:


Nominal Diameter(mm) DN 15~DN2000
Type Single ballDouble ballFlange or thread connect
Class 125LB 150LB 300LB
Model KXT-F-1KXT-F-2KXT-F-3
Working pressure (bar) 101625
Vacuum degree KPa(mm/Hg) 40(300)53.3(400)86.7(650)
Medium Air,compressed air,water,sea water,oil,acid,alkali,ect.


Type of  materials:



Flexibility,have good tear resistance ,wear resistance and drought tolerance,good

 workability,easy to bond to other materials,excellent electrical insulation.The operating

 temperature range is about -60℃ to +80℃.


Resistance to gasoline,hydraulic oil and other oil are particularly good performance.

Good heat resistance,air tightness,wear resistance and good water resistance etc.,

EPDM Resistance to ozene,UV resistance,acid,corrosion resistance,weather  resistance  and  excellent resistance to aging.heat-resistant up to 150℃.
FLANGE Can be made of carbon steel and stainless steel; Hard wire;Nylon Fabric reinforcing layer.




Three type parameter:

single ball rubber joint


Double ball rubber joint

Thread rubber joint




Products Features:


1.Small volume, light weight, good elasticity, easy installation and maintenance. 


2.Installation can generate horizontal, axial and angular displacement, from pipe barrier heart, flange is not parallel to the limit. 


3.Work to reduce structural transmission of noise, vibration absorption ability. 


4. Good sealing performance and scalability, easy to use. Internal high density, can endure high pressure, elastic deformation effect is good.


5.Use of rubber of high elasticity, high resistance, solvent resistance, weather resistance and radiation resistance and other advantages can  reduce vibration and noise,and play  the role of  compensation for thermal expansion and contraction caused by temperature change.


6.Standard sizes range from 1.25" through 80".


EPDM material double sphere union connector rubber coupling joint




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Here are the list of Frequently-Asked Questions compiled by our Customer Service Team to help you get answers to commonly (and some uncommonly) asked questions.


  • Q1 : Can you make the product as per client's requirement? 
  •  A: Yes, customized the size or length is aviailable,just according to your request.
  • Q2:Can we choose different material and standard?
  • A:  Yes ,the material or standard can be chose according to your request.
  • Q3:Do you accepted small quantity order?
  • A: Of course.our MOQ is 1 pcs of each kind
  • Q4: How can we pay for the deal? 
  • A: You can througth T/T(30% as desposit,the rest 70% balance payment will be paid before shipment),Western union,Paypal,Escrow.
  • Q5: What's your shipment methods?
  •  A:FEDEX/DHL/UPS/TNT for samples,Door -to-Door;By Air or Sea for batch goods,Airport/Port receiving;and customers specifying freight forwarders or negotiable shipping methods!
  • Q6: If i can't find the expansion joint which i need,what should i do?
  • A: Pls contact me online or inquiry,wirte down you request and email,i will reply to you within 24 hours
  • Q7: How can you guarantee the quality of your products? 
  •  A: 100%QC inspection to check all our products strictly before packaging



Company Information



Foshan Nanhai Hongchang Jefer Electromechanical Valve Co.,Ltd is a factory set up in 2006. We are specializing in  researching, developing and manufacturing different kinds of rotary joints,  flexible metal hose,  rubber hose , bellow expansion joint and valve   equipment in China.



Our factory is covering over 10,000 square meters.  Our R&D department consists of 3 engineers. Also, we have experienced QC personnel  to check all our  products strictly before packaging .  All of our products meet the national standards  and  have pass ISO9001 certification. We obtain trust from customers by advanced technology, excellent quality and satisfactory service. Also, we specialized in customized rotary joints tailored to meet your project requirements.



Our mission is: Offer high-quality goods, excellent service, and reasonable price to customers; Use our product, you will get more benefits!



Packaging & Shipping




Packing: Standard export wooden case.




1. UPS, DHL, EMS, FEDEX,TNT and so on (door to door) 


2. For air/sea shipment, please choose your favorite shipping method according to your requirements 


3.The shipping cost varies in different location, also depends on specific weight. We will recommend the cheapest and safest way according to your detailed quantities. 


4.Shipping period varies depending upon your location. Normally, it will take around 5-30 days from China to destination country




1. Paypal (suit to order value less than 1000 USD).


2. Western Union, Bank transfer.


3. T/T, 30% deposit and the balance clear before shipping your goods.




We will do our best to assure the completeness of the rubber expansion joint when they arrive at your port.

Our Services


1.If you are interested in our products, pls kindly send us your need specification. ( Including: size, length, Material, pressure,flange standard and your quantity.)



2.If you'd like to know more about our products or have any problems, pls email me here

















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China (Mainland)
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Supplier's Trade Assurance Limit: US $36,000
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