Super soft, inner PTFE type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Effective in piping for corrosive gases in chemical plants!
Expansion joints (rubber joints) are used for preventing vibrations and noise generated from piping systems, absorbing expansion and displacement due to temperature and pressure changes, as well as accommodating various dimensional fluctuations during installation and mitigating or preventing the effects of earthquakes and ground subsidence. They are considered essential components in piping installations. The E-P joint was launched in 1970 (Showa 45) as a low-pressure R type for elevated water tanks. Since then, it has expanded to include new products that meet customer needs, such as the high-pressure P type integrated with PTFE and the F type. Today, it is used by a wide range of customers across various industries, from household drinking water to chemical plant piping. 【Features】 1. Pressure type PTFE (polytetrafluoroethylene) inner surface coating type 2. The liquid-contacting part (inner surface) uses PTFE, which has excellent chemical resistance 3. Improved resistance to external impacts through integration with durable and strong rubber For more details, please contact us or refer to the catalog.
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basic information
【Features】 ○ Vibration-damping effect → The E-P joint with a small spring constant is effective for vibration damping measures. ○ Displacement absorption → Excellent elasticity and shape recovery. → Absorbs displacements such as eccentricity, angular displacement, and expansion, protecting the piping. ○ Easy installation → Lightweight and compact, no packing required. → Flanges are of the loose type, making installation easy. ○ Composite effect → Vibration-damping effect and displacement absorption can be achieved simultaneously. ● For more details, please contact us or refer to the catalog.
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Applications/Examples of results
Piping for corrosive gases in chemical plants, etc. ● For more details, please contact us or refer to the catalog.
Line up（14）
| Model number | overview |
|---|---|
| High Pressure SP Type | Minimal change in spacing due to internal pressure, excellent pressure resistance. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Ball Flex | Excellent vibration absorption. Due to the use of loose flanges, it excels in installation work. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Cylindrical S Flex | Can accommodate large eccentricity. Due to the use of loose flanges, it excels in installation work. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Cylindrical SL Flex | Can accommodate large eccentricity. Due to the use of loose flanges, it excels in installation work. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Low Pressure R Type | Small deformation stress, suitable for vibration isolation and expansion absorption of low-pressure resin piping. Due to the use of loose flanges, it excels in installation work. Used for protecting connection points around FRP tanks and for vibration isolation of low-pressure pumps and blowers. |
| Low Pressure RM Type | Small deformation stress, suitable for vibration isolation and expansion absorption of low-pressure resin piping. Due to the use of loose flanges, it excels in installation work. Used for protecting connection points around FRP tanks and for vibration isolation of low-pressure pumps and blowers. |
| Pressure A1 Flex | Excellent vibration isolation effect. Due to the use of loose flanges, it excels in installation work. Used for vibration isolation of pumps and blowers in factory equipment. |
| Pressure P Type | The most versatile in the lineup. Durable and stable due to the combination of strong reinforcing fibers and steel wires. EPDM is used for the inner and outer rubber, providing excellent chemical resistance and weather resistance. Due to the use of loose flanges, it excels in installation work. Used for vibration isolation of general-purpose pumps and blowers in factory equipment and for expansion absorption of heat-resistant resin piping. |
| Pressure PL Type | Has a larger allowable displacement than the P type. Durable and stable due to the combination of strong reinforcing fibers and steel wires. EPDM is used for the inner and outer rubber, providing excellent chemical resistance and weather resistance. Due to the use of loose flanges, it excels in installation work. Used for expansion and displacement absorption in factory equipment piping and water supply and drainage equipment piping. |
| Pressure PB Type | No fluid or residue accumulates inside the product. Due to the use of loose flanges, it excels in installation work. Used for vibration isolation of general-purpose pumps and blowers in factory equipment and for expansion absorption of heat-resistant resin piping. |
| Low Pressure (Inner PTFE) RF Type | Uses PTFE on the liquid contact surface, providing excellent chemical resistance. Improved durability due to integration with rubber that has excellent durability and strength. Used in piping for corrosive chemicals in chemical plants, oil, solvent, and food transfer piping, pure water piping in IC factories, vibration isolation for corrosion-resistant pumps, and piping for hot water and pool water. |
| Pressure (Inner PTFE) PF Type | Uses PTFE on the liquid contact surface, providing excellent chemical resistance. Improved durability due to integration with rubber that has excellent durability and strength. Used in piping for corrosive chemicals in chemical plants, oil, solvent, and food transfer piping, pure water piping in IC factories, vibration isolation for corrosion-resistant pumps, and piping for hot water and pool water. |
| Super Flexible (Inner PTFE) SF Type | Uses PTFE on the liquid contact surface, providing excellent chemical resistance. Improved durability due to integration with rubber that has excellent durability and strength. Used in piping for corrosive gases in chemical plants, etc. |
| Flexible Joint G Flex | Absorbs large displacements with relatively short spacing dimensions. Can absorb displacements in all directions, making it suitable for vibration-resistant applications. No fluid or residue accumulates inside the product. Used in air conditioning systems, water supply and drainage sanitary equipment, decoupling structures from piping, seismic protection for tanks and piping systems, and protection of pipelines in soft ground. |
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Company information
The high quality, ease of use, and excellent performance of our rubber products are characteristics that those who have used them can feel, and they are the result of many years of cultivation. We do not wish to become complacent with these achievements; instead, we aim to further refine and enhance our technology, experience, and high reliability to benefit society. By listening to the voices of an increasingly advanced and diverse era, we are committed to contributing to society by providing highly reliable, high-value-added products.