Spherical type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Active in air conditioning equipment, water supply and drainage sanitary equipment, and various plant facilities! [Ministry of Land, Infrastructure, Transport and Tourism specifications]
Expansion joints (flexible joints/rubber joints) are used to prevent vibrations and noise generated from piping systems, absorb expansion and displacement due to temperature and pressure changes, and mitigate or prevent the effects of various dimensional changes during installation, as well as impacts from earthquakes and ground subsidence. They are considered essential components in piping systems. The E-P joint was launched in 1970 (Showa 45) as a low-pressure R type for elevated water tanks, and since then, we have added new products to meet customer needs, including the high-pressure P type integrated with PTFE and the F type. Today, our products are used by a wide range of customers across various industries, from household drinking water to chemical plant piping. 【Features】 1. Excellent vibration absorption 2. Superior installation work due to the use of loose flanges 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 gasket 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
Air conditioning equipment Water supply and drainage sanitary equipment Factory equipment Various plant equipment, 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 damping 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 damping of low-pressure pumps and blowers. |
| Low Pressure RM Type | Low deformation stress, suitable for vibration damping 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 damping of low-pressure pumps and blowers. |
| Pressure A1 Flex | Excellent vibration damping effect. Features loose flange for easy installation. Used for vibration damping of pumps and blowers in factory equipment. |
| Pressure P Type | Most versatile in the lineup. Durable and stable due to 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 damping 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 due to 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 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 damping 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 rubber that has excellent durability and strength. Used for corrosive chemical piping in chemical plants, oil, solvent, and food transfer piping, pure water piping in IC factories, vibration damping 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 rubber that has excellent durability and strength. Used for corrosive chemical piping in chemical plants, oil, solvent, and food transfer piping, pure water piping in IC factories, vibration damping 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 rubber that has excellent durability and strength. 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-resistant 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 protecting 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 years of cultivation. We do not intend to rest on our laurels; 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.