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NHFLEX-D
Rubber expansion joints are critical components engineered to mitigate the adverse effects of movement, vibration, and noise in industrial piping systems. Fabricated from premium elastomers such as EPDM, NBR, or neoprene, these joints dynamically compensate for axial, lateral, and angular displacements caused by thermal expansion, mechanical vibration, or pipeline misalignment. Their robust design ensures leak-free performance across diverse applications, including HVAC, water treatment, and chemical processing. By reducing stress on adjacent equipment like pumps and valves, they enhance system longevity while minimizing maintenance costs. Compliant with ISO 9001 manufacturing standards, these joints are tested to deliver reliable performance under pressures up to 25 bar and temperatures ranging from -30°C to +120°C.
1. Multi-Directional Flexibility: Engineered to absorb axial compression/extension, lateral shear, and angular rotation up to 15 degrees, ensuring stress-free pipeline operation.
2. Reinforced Structure: High-tensile textile or spiral steel wire embedded within the elastomer matrix enhances burst resistance and dimensional stability.
3. Chemical Compatibility: Material selection guidelines align with ASTM D2000 specifications—EPDM for steam and ozone resistance, NBR for oil-based fluids, and neoprene for weatherproof outdoor use.
4. Vibration Isolation: Reduces noise transmission by up to 30 dB, ideal for installations near sensitive equipment or residential areas.
5. Custom Configurations: Available in flanged, threaded, or grooved-end connections, with optional PTFE liners for abrasive media.
· HVAC Systems: Compensates for thermal cycling in district heating networks and chilled water distribution.
· Water Infrastructure: Prevents water hammer damage in treatment plants, fire suppression systems, and potable water pipelines.
· Industrial Pumping: Installed at pump suction/discharge points to dampen vibration in chemical transfer and hydraulic systems.
· Power Generation: Accommodates pipe misalignment in cooling tower feed lines and condenser circuits.
Q: What is the maximum permissible lateral offset?
A: Standard joints allow lateral movement up to 10% of the nominal length; consult our engineering team for larger displacements.
Q: How frequently should inspections be conducted?
A: Biannual visual checks for surface cracks or bulging are recommended, with replacement every 5–7 years depending on operating conditions.
Q: Are anti-static variants available for flammable fluids?
A: Yes, conductive rubber compounds with resistance below 10^5 ohms can be supplied upon request.
| MATERIAL SPECIFICATION | ||
| Part No. | Part | Standard Specification |
| 1 | Union | Malleable iron |
| 2 | Rubber (Outer) | EPDM |
| 3 | Reinforcing Fabric | Nylon Fabric |
| 4 | Rubber (lnner) | EPDM |
Note: For special material request other than standard specification, please indicate clearly on the inquiy or order list.
Rubber expansion joints are critical components engineered to mitigate the adverse effects of movement, vibration, and noise in industrial piping systems. Fabricated from premium elastomers such as EPDM, NBR, or neoprene, these joints dynamically compensate for axial, lateral, and angular displacements caused by thermal expansion, mechanical vibration, or pipeline misalignment. Their robust design ensures leak-free performance across diverse applications, including HVAC, water treatment, and chemical processing. By reducing stress on adjacent equipment like pumps and valves, they enhance system longevity while minimizing maintenance costs. Compliant with ISO 9001 manufacturing standards, these joints are tested to deliver reliable performance under pressures up to 25 bar and temperatures ranging from -30°C to +120°C.
1. Multi-Directional Flexibility: Engineered to absorb axial compression/extension, lateral shear, and angular rotation up to 15 degrees, ensuring stress-free pipeline operation.
2. Reinforced Structure: High-tensile textile or spiral steel wire embedded within the elastomer matrix enhances burst resistance and dimensional stability.
3. Chemical Compatibility: Material selection guidelines align with ASTM D2000 specifications—EPDM for steam and ozone resistance, NBR for oil-based fluids, and neoprene for weatherproof outdoor use.
4. Vibration Isolation: Reduces noise transmission by up to 30 dB, ideal for installations near sensitive equipment or residential areas.
5. Custom Configurations: Available in flanged, threaded, or grooved-end connections, with optional PTFE liners for abrasive media.
· HVAC Systems: Compensates for thermal cycling in district heating networks and chilled water distribution.
· Water Infrastructure: Prevents water hammer damage in treatment plants, fire suppression systems, and potable water pipelines.
· Industrial Pumping: Installed at pump suction/discharge points to dampen vibration in chemical transfer and hydraulic systems.
· Power Generation: Accommodates pipe misalignment in cooling tower feed lines and condenser circuits.
Q: What is the maximum permissible lateral offset?
A: Standard joints allow lateral movement up to 10% of the nominal length; consult our engineering team for larger displacements.
Q: How frequently should inspections be conducted?
A: Biannual visual checks for surface cracks or bulging are recommended, with replacement every 5–7 years depending on operating conditions.
Q: Are anti-static variants available for flammable fluids?
A: Yes, conductive rubber compounds with resistance below 10^5 ohms can be supplied upon request.
| MATERIAL SPECIFICATION | ||
| Part No. | Part | Standard Specification |
| 1 | Union | Malleable iron |
| 2 | Rubber (Outer) | EPDM |
| 3 | Reinforcing Fabric | Nylon Fabric |
| 4 | Rubber (lnner) | EPDM |
Note: For special material request other than standard specification, please indicate clearly on the inquiy or order list.
