Orignal factory from china
Rubber Expansion Joint Manufacturer & Supplier
- Cut 10% Off Trader Prices
- Our Own Compounding Line — We Mix the Rubber, Not Just Assemble the Joint
- Pressure and Leak Tested before shipping
- High quality with competitive price
Our Main Product
Explore our range of rubber expansion joints for water, HVAC, industrial piping and equipment connections, with standard and customized options available.
Single Sphere Rubber Expansion Joint
- Structure: Single Sphere
- Rubber Options: NR / EPDM / NBR / Customized
- Size Range: DN32–DN3100
- Flange Options: Carbon Steel / Stainless Steel
- Customization: According to Your Drawing
- Applications: Water, HVAC & Industrial Piping
Threaded Rubber Expansion Joint
- Connection: Threaded Connection
- Rubber Options: NR / EPDM / NBR / Customized
- Size Range: DN32–DN80
- Thread Options: Customized
- Customization: According to Your Drawing
- Applications: Water, HVAC & Equipment Connections
Single Sphere Rubber Expansion Joint
- Structure: Double Sphere
- Rubber Options: NR / EPDM / NBR / Customized
- Size Range: DN32–DN600
- Flange Options: Carbon Steel / Stainless Steel
- Customization: According to Your Drawing
- Applications: Water, HVAC & Industrial Piping
Rubber Expansion Joint with Control Units
- Structure: Single Sphere with Control Rods
- Rubber Options: NR / EPDM / NBR / Customized
- Size Range: DN32–DN3100
- Control Units: Tie Rod Type
- Customization: According to Your Drawing
- Applications: Pumps, Valves & Industrial Piping
PTFE Lined Rubber Expansion Joint
- Lining: PTFE Lined
- Rubber Options: EPDM / NBR / Customized
- Size Range: Customized
- Flange Options: Carbon Steel / Stainless Steel
- Customization: According to Your Drawing
- Applications: Chemical & Corrosive Media
Concentric Reducer Rubber Expansion Joint
- Structure: Concentric Reducer
- Centerline: Same Centerline
- Rubber Options: NR / EPDM / NBR / Customized
- Size Range: Customized
- Flange Options: Carbon Steel / Stainless Steel
- Applications: Different-Diameter Pipeline Connections
Eccentric Reducer Rubber Expansion Joint
- Structure: Eccentric Reducer
- Rubber Options: NR / EPDM / NBR / Customized
- Size Range: Customized
- Flange Options: Carbon Steel / Stainless Steel
- Customization: According to Your Drawing
- Applications: Pumps & Different-Diameter Pipelines
90° Elbow Rubber Expansion Joint
- Structure: 90° Elbow
- Rubber Options: NR / EPDM / NBR / Customized
- Size Range: Customized
- Flange Options: Carbon Steel / Stainless Steel
- Customization: According to Your Drawing
- Applications: Pipeline Direction Changes
Flanged Duckbill Check Valve
- Structure: Duckbill Type
- Rubber Options: EPDM / NBR / Customized
- Connection: Flanged
- Size Range: Customized
- Function: Backflow Prevention
- Applications: Drainage, Sewage & Water Systems
Rectangular Rubber Expansion Joint
- Structure: Rectangular Type
- Rubber Options: EPDM / Customized
- Size Range: Customized
- Connection: Flanged Frame
- Customization: According to Your Drawing
- Applications: Ducts & Large Pipeline Systems
Large Diameter Rubber Expansion Joint
- Structure: Large Diameter Type
- Rubber Options: NR / EPDM / NBR / Customized
- Size Range: Large Diameter / Customized
- Connection: Flanged
- Customization: According to Your Drawing
- Applications: Water & Industrial Pipeline Systems
Our Advantage
From competitive pricing to standardized production, customization and technical support, we provide reliable solutions for industrial piping projects.
Factory Direct Supply, Competitive Pricing
Direct production helps control cost, lead time and repeat-order consistency.
- Factory-based quotation
- Batch production capability
- Support for distributor and project orders
Standardized Production, Consistent Quality
Clear production procedures and inspection points are more convincing than decorative claims.
- Material verification
- Dimensional inspection
- Pressure testing available
Ready Stock & Custom Production
Standard models can be stocked while special dimensions can be manufactured against drawings or project data.
- Standard models
- Custom size and overall length
- Custom flange drilling
Practical After-Sales Support
Technical communication before order and installation support after delivery help reduce project risk.
- Drawing confirmation
- Installation guidance
- Order follow-up
Application Of Our Product
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HVAC & Chilled Water
Suitable for chillers, pumps, cooling systems and circulation lines where flexibility and vibration isolation are required.
Water Supply & Treatment
Applied in pump stations, reservoirs, water treatment systems and general industrial water piping.
Chemical & Process Piping
Flexible connections for process lines where vibration, pipe movement and equipment protection need to be considered.
Fire Protection & Sprinkler Syste
Used in fire pump rooms and sprinkler systems to reduce vibration, compensate for pipe movement and protect connected equipment.
Industrial Plants & Utility Piping
Used in industrial utility lines, circulating water systems and pump connections to absorb vibration and accommodate pipe movement.
Power Generation & Energy Systems
Used in cooling water, circulation and auxiliary piping systems to reduce vibration, accommodate movement and protect connected equipment.
About Our Company
We focus on manufacturing rubber expansion joints for industrial piping systems. This section should stay concise: who you are, what you make, what markets you serve, and why buyers can trust your production capability.
- Rubber expansion joint production
- Standard & non-standard sizes
- Multiple flange standards
- OEM / ODM support
- Export project experience
- Technical drawing support
Hello, I’m Yanping from Gongyi Longsheng Pipeline Equipment Co., Ltd.. Over the past 20 years, we have continuously collaborated with rubber expansiont joint，Dismantling Joint, Flexible Metal Hose, Metal Expansion Joint, and more. If you have any questions,please feel free to contact us.
Manufacturing Process
The process material is placed in its own clear section so visitors immediately understand what it represents.
Rubber Compounding & Mixing
Rubber compounds are carefully formulated and mixed to achieve the required flexibility, strength and durability.
Rubber Sheet & Reinforcement Preparation
Rubber sheets and reinforcement fabrics are prepared to ensure consistent thickness and structural strength.
Rubber Body Building
Multiple rubber and reinforcement layers are built around the forming mold to create the expansion joint body.
Vulcanization & Molding
The formed rubber body is vulcanized under controlled temperature and pressure to achieve its final mechanical properties.
Flange Assembly & Finishing
Finished rubber bodies are fitted with prepared flanges and carefully assembled according to the required specifications.
Pressure Testing & Final Inspection
Each finished expansion joint is pressure tested and inspected to verify sealing performance, dimensions and overall quality.
Our Certification
Your Reliable Water Supply Pipeline Partner
FAQ
Find answers to common questions about rubber expansion joints, materials, customization, applications and quotation requirements.
What is a rubber expansion joint used for?
It is used to absorb vibration, noise, thermal movement and minor pipe misalignment while reducing stress on connected equipment.
Can you manufacture custom rubber expansion joints?
Yes. Size, overall length, rubber material, flange standard, drilling pattern and structural design can be reviewed according to drawings and operating data.
What information is needed for quotation?
Pipe size, working pressure, medium, temperature, flange standard, quantity and any required movement or certification information.
Which rubber materials are commonly available?
EPDM and NBR are common choices. The final material should be selected according to actual service conditions.
Industrial Flexible Piping Solutions
Need A Reliable Rubber Expansion Joint Manufacturer?
Contact Us
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