flange rubber bellows

Flanged double spherical rubber joint pipe vibration damping compensator

1"-10"
Flange‑type double‑sphere rubber expansion joint with dual‑ball structure. Available in EPDM for acid‑alkali resistance or NBR for oil resistance. It compensates axial, lateral and angular pipeline displacement, absorbs thermal expansion and contraction, dampens vibration and noise from pumps and equipment, relieves pipeline stress to protect piping system. Easy‑to‑install flange connection ensures reliable sealing, widely applied in water supply, fire‑fighting, chemical and HVAC piping systems.
Delivery
EXW
minimum order
10 pieces
Supply Ability
100pieces / Day
Country of Origin
CHINA
Stock Time
7Day
Quantity:
US $10.00 - US $1999.00 / pieces
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Product Description

Rubber expansion joints consist of inner and outer rubber, nylon cord fabric which are vulcanized and then combined with metal flanges or loose sleeves of parallel joints. This product can reduce vibration and noise, and compensate thermal expansion and contraction caused by temperature change. It is widely used in various pipeline systems.
Detailed Photos


Multiple Models of EPDM/NBR Double Ball Rubber Expansion JointsMultiple Models of EPDM/NBR Double Ball Rubber Expansion JointsMultiple Models of EPDM/NBR Double Ball Rubber Expansion JointsMultiple Models of EPDM/NBR Double Ball Rubber Expansion JointsMultiple Models of EPDM/NBR Double Ball Rubber Expansion Joints
 

Product Parameters

DesignationSizeTotal lenghtSpring rate

(DN)
(L)		axial
extension
mm		axial
compression mm		lateral displacement  mmtorsional
(a1+a2)°
Rubber joint321655202045
Rubber joint401655202045
Rubber joint5016530502035
Rubber joint6517530502035
Rubber joint8017535502035
Rubber joint10022535502535
Rubber joint12522535502535
Rubber joint15022535502535
Rubber joint20032535503030
Rubber joint25032535603030
Rubber joint30032535603030


NOTE:For more size specifications, please contact the customer service for sales.
 

FAQ

a) How can I get more details about your products?
You can send an email to our email address. We will provide catalogue and pictures of our products for your reference.We can also supply pipe fittings, bolt and nut, gaskets etc. We aim to be your piping system solution provider. 
b) How can I get some samples?   
If you need, we will offer you samples for free, but new customers are expected to pay express charge. 
c) Do you provide customized parts? 
Yes, you can give us drawings and we will manufacture accordingly. 
d) To which country have you supplied your products?
We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru , Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.). 
e) I can't see the goods or touch the goods, how can I deal with the risk involved?  
Our quality management system conforms to the requirement of ISO 9001:2015 verified by DNV. We are absolutely worth your trust. We can accept trial order to enhance mutual trust.