Cylinder type! Absorbs vibration, noise, expansion, and displacement in piping systems! Active in air conditioning equipment, water supply and drainage sanitary equipment, and various plants! [Meets 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, as well as to accommodate various dimensional fluctuations during construction and mitigate or prevent 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, we have added new products to meet customer needs, including the high-pressure P type integrated with PTFE, known as the F type. Today, our products are used across a wide range of fields and various industries, from household drinking water to chemical plant piping for liquids. 【Features】 1. Capable of accommodating large eccentricities 2. Excellent 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 control. ○ 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 packing required. → The loose type flange makes installation easy. ○ Composite effect → Vibration damping 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
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. Adopts loose flange for superior installation work. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Cylindrical S Flex | Can accommodate large eccentricity. Adopts loose flange for superior installation work. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Cylindrical SL Flex | Can accommodate large eccentricity. Adopts loose flange for superior installation work. 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 resin piping. Adopts loose flange for superior installation work. Used for protecting connection parts 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 resin piping. Adopts loose flange for superior installation work. Used for protecting connection parts around FRP tanks and for vibration isolation of low-pressure pumps and blowers. |
| Pressure A1 Flex | Excellent vibration isolation effect. Adopts loose flange for superior installation work. 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. Uses EPDM for inner and outer rubber, excellent in chemical resistance and weather resistance. Adopts loose flange for superior 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 P Type. Durable and stable with a combination of strong reinforcing fibers and steel wire. Uses EPDM for inner and outer rubber, excellent in chemical resistance and weather resistance. Adopts loose flange for superior 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 remains inside the product. Adopts loose flange for superior 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, excellent in chemical resistance. Improved durability due to integration with rubber that has excellent durability and strength. Used for piping of corrosive chemicals in chemical plants, oil, solvent, 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, excellent in chemical resistance. Improved durability due to integration with rubber that has excellent durability and strength. Used for piping of corrosive chemicals in chemical plants, oil, solvent, 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, excellent in chemical resistance. Improved durability due to integration with rubber that has excellent durability and strength. Used for piping of corrosive gases in chemical plants, etc. |
| Flexible Joint G Flex | Absorbs large displacements with relatively short spacing dimensions. Can absorb displacements in all directions, suitable for vibration resistance applications. No fluid or residue remains inside the product. Used in air conditioning systems, water supply and drainage sanitary equipment, for decoupling structures from piping, seismic resistance for tanks and piping systems, and for protecting pipelines in soft ground. |
catalog（1）
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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.