Cylindrical 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!
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 installations. The E-P joint was launched in 1970 (Showa 45) as a low-pressure R type for elevated water tanks, and since then, new products have been added to meet customer needs, including the high-pressure P type integrated with PTFE and the F type. Today, they are used by a wide range of customers across various industries, from household drinking water to chemical plant piping. 【Features】 1. Capable of accommodating large eccentricities 2. Excellent for installation work due to the use of loose flanges *Nominal diameters 20A to 40A are compliant with Ministry of Land, Infrastructure, Transport and Tourism specifications. 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 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
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. 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 eccentricities. 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 eccentricities. 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 damping and expansion absorption of low-pressure resin piping. Due to the use of loose flanges, it excels in installation work. Used for protecting connection parts around FRP tanks and for vibration damping of low-pressure pumps and blowers. |
| Low Pressure RM Type | Small deformation stress, suitable for vibration damping and expansion absorption of low-pressure resin piping. Due to the use of loose flanges, it excels in installation work. Used for protecting connection parts around FRP tanks and for vibration damping of low-pressure pumps and blowers. |
| Pressure Type A1 Flex | Excellent vibration damping effect. Due to the use of loose flanges, it excels in installation work. Used for vibration damping of pumps and blowers in factory equipment. |
| Pressure Type 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 damping of general-purpose pumps and blowers in factory equipment and for expansion absorption of heat-resistant resin piping. |
| Pressure Type PL Type | Has a larger allowable displacement than 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 Type PB Type | No fluid or residue remains inside the product. Due to the use of loose flanges, it excels in installation work. Used for vibration damping 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 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 and similar applications. |
| 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 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.