Pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Effective for vibration isolation of 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, and since then, it has added new products to meet customer needs, including the integrated high-pressure P type PTFE and F type. Today, it is used by a wide range of customers across various industries, from household drinking water to chemical plant piping. 【Features】 1. Stable durability due to the combination of strong reinforcing fibers and reinforcing steel wires. 2. EPDM is used for the inner and outer rubber, providing excellent chemical resistance and weather resistance. 3. The use of loose flanges facilitates installation work. 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 packing 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
Vibration prevention for general-purpose pumps and blowers in upward equipment 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. Features loose flanges for easy installation. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Cylindrical S Flex | Can accommodate large eccentricities. Features loose flanges for easy installation. Used in air conditioning systems, water supply and drainage sanitary equipment, etc. |
| Cylindrical SL Flex | Can accommodate large eccentricities. Features loose flanges 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 flanges 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 flanges 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 flanges 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. Uses EPDM for inner and outer rubber, excellent in chemical resistance and weather resistance. Features loose flanges 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 the 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. Features loose flanges 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 flanges 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, excellent in 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, excellent in 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, excellent in 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, 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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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.