Pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Effective for vibration damping in general-purpose pumps and blowers in factory equipment, as well as for absorbing expansion in heat-resistant resin 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, we have added new products to meet customer needs, including the high-pressure P type integrated product F type with PTFE. Today, our products are used by a wide range of customers in various industries, from household drinking water to chemical plant piping. 【Features】 1. A sponge core is embedded inside the arch of the P type to straighten the inner surface and prevent liquid pooling. 2. The use of loose flanges enhances installation work. For more details, please contact us or refer to the catalog.
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basic information
【Features】 ○Vibration Isolation 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 gasket required. → Flanges are of the loose type, making installation easy. ○Composite Effect → Vibration isolation 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
Vibration isolation for general-purpose pumps and blowers in factory equipment, thermal expansion absorption of heat-resistant resin piping, 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 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 Type 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 Type P | The most versatile in the lineup. Durable and stable due to the combination of strong reinforcing fibers and steel wires. Uses EPDM for inner and outer rubber, excellent in 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 Type PL | Has a larger allowable displacement than the P type. Durable and stable due to the combination of strong reinforcing fibers and steel wires. Uses EPDM for inner and outer rubber, excellent in 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 piping. |
| Pressure Type PB | No fluid or residue remains 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, excellent in 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 for 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 in piping for corrosive chemicals in chemical plants, oil, solvent, and food transfer piping, pure water piping for 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 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, 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 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 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.
![Expansion Joint "EP Joint" [RM Type]](https://image.www.ipros.com/public/product/image/6fe/2000404397/IPROS5637377192497226190.jpg?w=280&h=280)
![Expansion Joint "EP Joint" [R Type]](https://image.www.ipros.com/public/product/image/6f0/2000404394/IPROS15393334904523130264.jpg?w=280&h=280)
