Pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Active in absorbing expansion and displacement in factory equipment piping and water supply and drainage piping!
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 impacts from earthquakes and ground subsidence. They are considered essential components in piping equipment. 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 in various industries, from household drinking water to chemical plant piping. 【Features】 1. Greater allowable displacement than the P type. 2. Stable durability due to the combination of strong reinforcing fibers and reinforcing steel wires. 3. EPDM is used for the inner and outer rubber, providing excellent chemical resistance and weather resistance. 4. The use of loose flanges makes installation work easier. 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 deviation, and expansion, protecting the piping. ○Easy installation → Lightweight and compact, no gaskets required. → Flanges are of the loose type, making installation easy. ○Composite effect → Vibration-damping effect and displacement absorption can be obtained simultaneously. ● For more details, please contact us or refer to the catalog.
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Applications/Examples of results
For absorbing expansion and displacement of factory equipment piping For absorbing expansion and displacement of water supply and drainage equipment piping Protection of piping connections around water tanks, 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. Features loose flange for easy installation. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Cylindrical S Flex | Can accommodate large eccentricity. Features loose flange for easy installation. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Cylindrical SL Flex | Can accommodate large eccentricity. Features loose flange for easy installation. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Low Pressure R Type | Low deformation stress, suitable for vibration isolation and expansion absorption of low-pressure plastic piping. Features loose flange for easy installation. Used for protecting connection points around FRP tanks and for vibration isolation of low-pressure pumps and blowers. |
| Low Pressure RM Type | Low deformation stress, suitable for vibration isolation and expansion absorption of low-pressure plastic piping. Features loose flange for easy installation. 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. Features loose flange for easy installation. Used for vibration isolation of pumps and blowers in factory equipment. |
| Pressure P Type | Most versatile in the lineup. Durable and stable with a combination of strong reinforcing fibers and steel wire. EPDM is used for inner and outer rubber, providing excellent chemical resistance and weather resistance. Features loose flange for easy installation. Used for vibration isolation of general-purpose pumps and blowers in factory equipment and for expansion absorption of heat-resistant plastic piping. |
| Pressure PL Type | Has a larger allowable displacement than P Type. Durable and stable with a combination of strong reinforcing fibers and steel wire. EPDM is used for inner and outer rubber, providing excellent chemical resistance and weather resistance. Features loose flange for easy installation. Used for expansion and displacement absorption in factory equipment piping and water supply and drainage piping. |
| Pressure PB Type | No fluid or residue remains inside the product. Features loose flange for easy installation. Used for vibration isolation of general-purpose pumps and blowers in factory equipment and for expansion absorption of heat-resistant plastic piping. |
| Low Pressure (Inner PTFE) RF Type | Uses PTFE on the liquid contact surface, providing excellent chemical resistance. Improved durability due to integration with durable and strong rubber. Used for corrosive chemical piping in chemical plants, oil, solvent, and food transfer piping, pure water piping in IC factories, vibration isolation of 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 durable and strong rubber. Used for corrosive chemical piping in chemical plants, oil, solvent, and food transfer piping, pure water piping in IC factories, vibration isolation of 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 durable and strong rubber. Used for corrosive gas piping 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 resistance applications. No fluid or residue remains 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.