rubber ball
1"-40"
Replacement rubber sphere body for rubber expansion joint. Designed to absorb pipeline vibration, offset thermal expansion and contraction, compensate axial, lateral and angular displacement for piping systems.Flexible rubber ball spare part for flange type rubber expansion joint. Effectively reduce piping noise and shock, protect pipelines and equipment from stress damage. Various rubber materials available for different mediums.widely used in water, sewage, chemical and HVAC piping. Good elasticity, convenient for on site replacement without modifying original pipeline.
Delivery
EXW
minimum order
10 pieces
Supply Ability
1000pieces / Week
Country of Origin
CHINA
Stock Time
7Day
Quantity:
US $6.99 - US $999.90 / pieces
Product Overview This rubber sphere body is the core spare part of flexible rubber expansion joint, used to replace worn‑out or damaged original rubber ball without changing flanges. It adopts multi‑layer reinforced structure with high elasticity, pressure resistance and reliable sealing performance. It can absorb pipeline vibration, noise and multi‑direction displacement, widely applied for various industrial fluid piping systems.
Available Rubber Material Selection Different rubber formulas are designed for diverse working medium and service conditions. Please choose the proper material based on your actual working environment.
| Rubber Grade | Applicable Medium | Working Condition |
|---|---|---|
| EPDM | Water, seawater, sewage, weak acid & alkali | HVAC, water supply‑drainage, sewage system |
| NBR | Oil, oily liquid | Petroleum and oil‑circulating pipeline |
| NR | Clean fresh water | General water supply piping |
| CR | Moderate corrosive medium | Weather‑resistant outdoor installation |
| FKM | Strong corrosive fluid | High‑temperature and heavy‑corrosion working site |
Main Structure The rubber ball body consists of inner rubber layer, multi‑ply nylon cord fabric reinforcement, steel wire reinforcing ring and outer rubber cover. Multi‑layer reinforcing design improves pressure resistance and structural stability during displacement compensation. Nominal diameter ranges from DN15‑DN3000, custom sizes are acceptable for special requirements, matching PN10, PN16, PN25 pressure grades.
Key Features & Benefits ‑ Compensate axial, lateral and angular displacement caused by thermal expansion and pipe installation deviation ‑ Excellent vibration damping and noise reduction, isolate pump‑generated vibration from piping network ‑ Stable sealing performance, effectively prevent medium leakage under rated working pressure ‑ Convenient on‑site replacement, no need to modify existing pipeline and flanges ‑ Good resistance against aging, weather and medium erosion for long‑term service life
Typical Application Fields This replacement rubber sphere body fits for water supply & drainage, sewage treatment, HVAC, fire protection, chemical, petroleum, marine and power plant piping. It performs well at pump inlet & outlet and equipment connecting pipelines requiring shock absorption and displacement compensation.
Operating Reminder Please select correct rubber material according to actual medium, temperature and working pressure. Avoid sharp scratch and over‑stretch during installation to extend service life. OEM & ODM customization is acceptable for special working conditions.
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.
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.
