Product Overview
As a premier manufacturer and supplier of advanced industrial piping solutions, we present the EPDM Rubber Metal Pipe Connector. Engineered for rigorous fluid transit environments, this compacted joint integrates seamlessly into your infrastructure to optimize fluid dynamics and protect critical system components from mechanical fatigue.
- Robust EPDM elastomer construction designed for harsh media
- Integrated cast steel flanges providing secure, unyielding anchoring
- Innovative self-sealing mechanism that eliminates the need for extra gaskets
- Exceptional vibration dampening and noise reduction capabilities
- Compact footprint ideal for space-restricted facility layouts
Product Description
When fluid systems operate under immense pressure, the physical strain on pipelines can lead to catastrophic structural failures. The industrial rubber metal pipe connector acts as a vital shock absorber for your entire network. Running your hands over the dense, vulcanized EPDM surface reveals a meticulously crafted elastomer designed to withstand relentless mechanical stress and harsh environmental elements. The heavy-duty cast steel flanges exude a sense of permanence, providing a rock-solid anchor point that seamlessly marries flexibility with unyielding strength. Every curve and molded insert is engineered to perfection, ensuring a flawless fit that feels as premium as it performs.
By integrating this compacted expansion joint into your fluid transit lines, you instantly neutralize the destructive forces of thermal expansion, water hammer, and aggressive pump vibrations. Instead of the jarring clatter of metal-on-metal stress, your facility will experience the smooth, quiet hum of maximum efficiency. This connector does not just bridge a gap between two pipes; it actively preserves the integrity of your valves, compressors, and regulators. It guarantees that your operations run continuously without the looming threat of unexpected downtime, thereby safeguarding your investments and streamlining your daily operational workflow.
Product Specifications
| Standard Specification |
| Max. Working Pressure | 1.0Mpa |
| Operating Temperature | -20 ºC - 100 ºC |
| Applicable Media | Sea Water, Drinking Water, etc. |
| Flange Standard | DIN PN10 PN16 |
| Component Parts |
| Item | Part | Material |
| 1 | Body | NR, EPDM, NBR |
| 2 | Flange | Cast Steel |
| NHFLEX-C TYPE Rubber Joint Size Chart |
| SIZE DN (mm) | LENGTH F/F (mm) | DIN PN10 D (mm) | D1 (mm) | n-M (mm) | L1 (mm) |
| 20 | 70 | 109 | 75 | 4 X M12 | 12 |
| 25 | 70 | 119 | 85 | 4 X M12 | 16 |
| 32 | 70 | 145 | 100 | 4 X M16 | 16 |
| 40 | 70 | 156 | 110 | 4 X M16 | 16 |
| 50 | 70 | 171 | 125 | 4 X M16 | 16 |
| 65 | 70 | 192 | 145 | 4 X M16 | 16 |
| 80 | 70 | 207 | 160 | 8 X M16 | 18 |
| 100 | 70 | 227 | 180 | 8 X M16 | 18 |
| 125 | 70 | 257 | 210 | 8 X M16 | 18 |
| 150 | 70 | 294 | 240 | 8 X M20 | 18 |
| 200 | 90 | 343 | 295 | 8 X M20 | 20 |
Key Features & Highlights
Our rubber metal pipe connectors are engineered to deliver unparalleled reliability and operational safety. By focusing on the exact pain points of complex fluid dynamics, these joints provide immediate, tangible improvements to your system's longevity and acoustic profile.
- Acoustic Isolation: Drastically cuts down the transmission of operational noise, creating a safer, quieter, and more compliant workspace for personnel.
- Stress Relief: Acts as a highly responsive buffer against mechanical fatigue, preventing premature wear and tear on expensive adjacent machinery and rigid pipes.
- Thermal Compensation: Effortlessly expands and contracts to accommodate extreme temperature fluctuations without compromising the structural seal or causing pipeline warping.
- Space-Saving Footprint: The compacted cylindrical design allows for seamless installation in tight, restrictive spaces where traditional, bulky expansion joints simply cannot fit.
Core Material & Exceptional Durability
The foundation of any reliable pipeline network lies in the uncompromising quality of its components. Our connectors are forged from premium elastomers, specifically chosen for their resilience against the most unforgiving industrial environments and aggressive media.
- Advanced Elastomer Options: Choose from EPDM, NR, or NBR rubber bodies to perfectly match your specific media requirements, ensuring zero chemical degradation over time.
- Chemical and Corrosion Resistance: The vulcanized rubber matrix easily shrugs off the corrosive effects of sea water, treated drinking water, heavy oils, and various industrial gases.
- Anti-Aging Properties: Formulated to resist oxidation and UV exposure, the rubber maintains its supple elasticity, preventing brittleness even after years of continuous service.
- Reinforced Flange Strength: The heavy cast steel flanges provide a rigid, deformation-free connection point that withstands high-pressure surges without flinching or bending.
Vibration Dampening & Movement Absorption
Mechanical vibrations are the silent destroyers of pipeline infrastructure. This connector is specifically designed to isolate these destructive forces, ensuring your system remains stable, secure, and free from catastrophic micro-fractures.
- Pump and Valve Isolation: Placed adjacent to heavy machinery, the joint absorbs the kinetic energy generated by motors and compressors, preventing it from traveling down the line.
- Multi-Directional Compensation: Masterfully absorbs axial, lateral, and angular movements caused by ground shifting, operational settling, or thermal expansion.
- Water Hammer Mitigation: The elastic deformation of the rubber body acts as a cushion against sudden pressure spikes, protecting rigid pipes from cracking or bursting under shock.
- Acoustic Dampening: Transforms harsh, high-frequency mechanical noise into low-level, unnoticeable vibrations, drastically improving the acoustic environment of your facility.
Structural Design & Advanced Sealing Craftsmanship
The architecture of the NHFLEX-C TYPE connector is a testament to intelligent engineering. Every aspect of its physical form is optimized to reduce installation friction, maximize sealing efficacy, and eliminate common points of failure.
- Compacted Cylindrical Body: The streamlined shape minimizes fluid turbulence and pressure drops, maintaining optimal flow rates throughout the entire system.
- Vulcanized Flange Inserts: The integration of 2pc flanged inserts directly into the EPDM elastomer ensures a unified structure that cannot be torn apart under high tension.
- Self-Sealing Innovation: The rubber material naturally protrudes at the sealing surface. As the flanges are tightened, the rubber compresses to form an impenetrable barrier, completely eliminating the need for additional sealing gaskets.
- Leak-Proof Guarantee: By reducing the number of components required for a secure connection, the risk of human error during installation and subsequent fluid leakage is virtually eliminated.
Specifications & International Standards Compliance
When sourcing components for large-scale infrastructure, exact specifications are non-negotiable. Our connectors are manufactured to meet strict international standards, ensuring seamless integration into your existing engineering blueprints.
- Broad Dimensional Range: Available in a comprehensive size matrix from DN20 to DN200, catering to both localized distribution lines and major fluid transit arteries.
- Optimal Pressure Ratings: Engineered to comfortably sustain a maximum working pressure of 1.0Mpa, providing a wide safety margin for standard industrial applications.
- Wide Temperature Tolerance: Capable of operating flawlessly in environments ranging from a freezing -20 ºC up to a scorching 100 ºC without losing structural integrity.
- DIN Flange Compatibility: Manufactured in strict accordance with DIN PN10 and PN16 standards, guaranteeing universal compatibility with European and global piping networks.
Installation Guidelines & Maintenance Efficiency
Time is a critical resource during facility construction and maintenance turnarounds. This product is designed to minimize labor hours and reduce the total cost of ownership through straightforward, foolproof installation protocols.
- Tension-Free Mounting: Connectors must be installed completely free of tension to maximize their lifespan. The standard mounting length of 70mm (or 90mm for DN200) must be strictly adhered to without twisting or bending.
- Anchor Point Necessity: To properly absorb axial forces, stable pipeline fixed points and proper anchoring are required adjacent to the joint to prevent over-extension.
- Heat and Welding Precautions: The joint must be kept safely away from direct heat sources, sunlight, and welding sparks to prevent premature degradation of the elastomer surface.
- Zero-Maintenance Design: Once properly installed in an easily accessible location, the self-sealing nature and robust materials require virtually zero ongoing maintenance, drastically cutting servicing costs.
Industry Applications & Scenario Coverage
Versatility is at the core of the NHFLEX-C TYPE connector. Its robust material composition and adaptable design make it the component of choice across a multitude of demanding industrial sectors and complex fluid scenarios.
- Water Treatment Facilities: Perfectly suited for handling the high throughput of drinking water and the corrosive nature of wastewater without contaminating the media.
- Marine and Shipbuilding: The exceptional resistance to sea water and compact footprint make it ideal for the cramped, vibration-heavy engine rooms of commercial vessels.
- HVAC Systems: Effectively isolates the hum and vibration of large-scale chillers and cooling towers, ensuring quiet operation in commercial and residential high-rises.
- Chemical and Petrochemical Plants: With customizable NBR options, it safely transports oils and industrial gases while compensating for the extreme thermal shifts inherent in chemical processing.
Why Choose Us
Selecting the right manufacturing partner is just as critical as selecting the right product. We bring decades of engineering excellence, deep industry knowledge, and stringent quality control to every single connector that leaves our facility.
- Uncompromising Quality Control: Every batch of rubber is rigorously tested for tensile strength, elasticity, and chemical resistance before the vulcanization process even begins.
- Advanced Manufacturing Hub: Utilizing state-of-the-art injection molding and vulcanization presses to ensure absolute dimensional accuracy and zero structural defects.
- Custom Engineering Capabilities: Our technical design team can tailor elastomer blends and flange specifications to meet the unique demands of your highly specialized projects.
- Reliable Global Supply Chain: With optimized production workflows and extensive inventory management, we guarantee on-time delivery to keep your project schedules firmly on track.
Frequently Asked Questions (FAQ)
Below are some of the most common technical inquiries we receive regarding our rubber metal pipe connectors. If you require further engineering support, our technical team is ready to assist with detailed specifications.
- What is the primary advantage of the self-sealing design?
The self-sealing design features rubber that naturally protrudes at the sealing surface. When bolted to the adjoining flange, this rubber compresses, creating a perfect, leak-proof seal without the need for additional, easily misplaced sealing gaskets. This speeds up installation and reduces potential failure points. - Can this connector handle aggressive media like oils or chemicals?
While the standard EPDM body is exceptional for sea water, drinking water, and general weather resistance, we also offer bodies manufactured from NBR (Nitrile Rubber) which is specifically formulated for excellent resistance to oils, fuels, and other petroleum-based fluids. - Why is it necessary to have stable pipeline fixed points?
Rubber expansion joints are flexible by nature. When the pipeline is pressurized, it generates significant axial thrust forces. Without proper anchors and guides, the pipeline could over-extend the joint, leading to structural failure. Fixed points ensure the joint only absorbs the intended localized vibrations and thermal movements. - What happens if the installation space is slightly longer than the connector?
The connector must be installed completely free of tension. Stretching the joint to fit a gap larger than its designated mounting length (e.g., 70mm) will place permanent stress on the vulcanized bonds, drastically reducing its operational lifespan and pressure rating. The piping must be adjusted to fit the joint, not vice versa. - Are there any specific storage requirements before installation?
Yes. To preserve the integrity of the elastomer, the connectors should be stored in a cool, dry place away from direct sunlight, ozone-generating equipment (like electric motors), and extreme heat sources. They should also not be stored in direct contact with other distinct rubber surfaces to prevent chemical cross-contamination.