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Help CenterWeather‑Resistant Round Rubber Expansion Joint for Chemical & Water Pipe Systems
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Hebei Speed Torque Transmission Technology Co., Ltd. proudly introduces our Weather-Resistant Round Rubber Expansion Joint, engineered specifically for demanding chemical and water pipe systems. Manufactured in our 3,000-5,000 sqm factory with ISO9001 quality management, each joint is designed to absorb vibration, reduce noise, and compensate for thermal expansion and misalignment. Our rubber expansion joints have been trusted by clients across North America, Europe, and Southeast Asia, delivering reliable performance in aggressive media and harsh outdoor environments.
This expansion joint features a multi-layer reinforced construction with a weather-resistant synthetic rubber cover, providing excellent resistance to ozone, UV, and extreme temperatures. The inner liner is specially formulated for compatibility with a wide range of chemicals, including acids, alkalis, and industrial solvents. Whether used in water treatment plants, chemical processing facilities, or HVAC systems, our joint ensures long service life and low maintenance.
Key Features & Technical Benefits
Weather Resistance – Outer rubber cover resists cracking from UV, ozone, and extreme temperatures, ideal for outdoor installations.
Chemical Compatibility – Inner liner made from EPDM or NBR, tailored for specific chemical media (optional PTFE lining available upon request).
Vibration & Noise Dampening – Reduces mechanical vibrations transmitted through pipes, protecting pumps and valves.
Large Movement Absorption – Compensates for axial, lateral, and angular pipe movements up to 15mm axial compression and 5° angular deflection.
Easy Installation – Available with flanged or threaded connections; lightweight design simplifies handling.
Customizable Sizes – Diameter range from DN25 to DN4000, with custom lengths and pressures available.
Technical Specifications
| Parameter | Value |
| Nominal Diameter (DN) | 25 – 4000 mm |
| Working Pressure (PN) | 0.6 – 2.5 MPa |
| Temperature Range | -30°C to +150°C |
| Axial Displacement | ±5 – ±15 mm (depending on size) |
| Lateral Displacement | ±5 – ±20 mm |
| Angular Deflection | 3° – 5° |
| Connection Type | Flanged (DIN/ANSI/BS) or Threaded |
| Material Layers | Inner liner: EPDM/NBR; Reinforcement: Nylon/Polyester cord; Outer cover: Weather-resistant rubber |
Each joint undergoes rigorous hydrostatic pressure testing before shipment to guarantee leak-free performance. Our quality control team inspects every unit for dimensional accuracy, material hardness, and adhesion strength. With a factory spanning 3,000-5,000 square meters and an annual export value of US$5–10 million, we can fulfill large-volume orders while maintaining consistent quality. Our products are shipped from Shanghai, Tianjin, or Qingdao ports, ensuring timely delivery to global markets.
Why Choose Hebei Speed Torque?
Established in 2017 with over 100 skilled employees dedicated to rubber expansion joint manufacturing.
ISO9001 certified production process ensures traceability and quality consistency.
Wide market coverage: North America, South America, Europe, Asia, Africa, and Oceania.
Flexible customization – we can adjust materials, dimensions, and flanges to meet your exact requirements.
Competitive pricing backed by direct factory supply and efficient logistics.
Trust & Reliability
With an annual export value exceeding US$5 million, Hebei Speed Torque has built strong relationships with distributors and end-users worldwide. Our rubber expansion joints have been specified in water treatment facilities in Eastern Europe, chemical plants in Southeast Asia, and HVAC projects in the Middle East. Every order is backed by our dedicated after-sales support team. Contact us today to discuss your piping system requirements and request a quote. Let our expertise help you reduce downtime and improve system efficiency.
Frequently Asked Questions
1. What types of chemicals can this expansion joint handle?
The standard EPDM liner is suitable for many acids, alkalis, and water-based chemicals. For oil-based or aggressive solvents, we recommend NBR or optional PTFE lining. Please provide your media details for material selection.
2. Can the joint withstand outdoor exposure?
Yes, the outer cover is formulated to resist UV, ozone, and weathering. It can be installed outdoors without degradation for many years.
3. What is the maximum working pressure?
Our standard models offer pressures up to 2.5 MPa. Higher pressure ratings are available upon request for specialized applications.
4. Do you offer custom flange drilling?
Absolutely. We can produce flanges according to DIN, ANSI, BS, or customer-specific drilling patterns. Custom colors are also available for the rubber body.
5. How long is the typical lead time?
Standard sizes (DN50-DN300) ship within 15-20 working days after order confirmation. Custom orders may require 25-35 days depending on complexity.
6. What certifications do you have?
Our factory is ISO9001 certified. Product testing certificates for pressure and material can be provided with shipment.
7. Can you supply large quantities for a project?
Yes, with a 3,000-5,000 sqm factory and 101-200 employees, we have the capacity to handle bulk orders. Our annual export value of US$5-10 million demonstrates our production capability.
8. Do you provide installing instructions or technical support?
Yes, each order includes installation guidelines. Our engineering team is available for remote technical support and can assist with system design if required.
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