Last Updated： Aggregation Period:Jan 21, 2026～Feb 17, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Jan 21, 2026～Feb 17, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Jan 21, 2026～Feb 17, 2026
This ranking is based on the number of page views on our site.
1～30 item / All 44 items
Compatible with metal and rubber. Also capable of handling large diameters.
【Features】 ■ Cost advantages ■ Documents can be provided in Japanese ■ Compatible with round and square shapes ■ Compatible with rubber and metal * For more details, please refer to the PDF document or feel free to contact us. * This PDF is available in English.
![Expansion Joint "EP Joint" [S Flex]](https://image.mono.ipros.com/public/product/image/ffd/2000404389/IPROS4194100441755535280.jpg?w=280&h=280)
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.
![Expansion Joint "EP Joint" [SL Flex]](https://image.mono.ipros.com/public/product/image/a9f/2000404392/IPROS9745712819741440774.jpg?w=280&h=280)
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.
![Expansion Joint "EP Joint" [R Type]](https://image.mono.ipros.com/public/product/image/6f0/2000404394/IPROS15393334904523130264.jpg?w=280&h=280)
Low pressure type! Absorbs vibration, noise, expansion, and displacement in piping systems! Protects connection points around FRP tanks and is effective in vibration prevention for low pressure pumps and blowers!
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 the effects of 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, it has added new products to meet customer needs, including the high-pressure P-type integrated product F-type with PTFE. Today, it is used by a wide range of customers across various industries, from household drinking water to chemical plant piping. 【Features】 1. Low deformation stress, suitable for vibration damping and expansion absorption in low-pressure plastic piping. 2. Excellent installation work due to the use of loose flanges. For more details, please contact us or refer to the catalog.
![Expansion Joint "EP Joint" [RM Type]](https://image.mono.ipros.com/public/product/image/6fe/2000404397/IPROS5637377192497226190.jpg?w=280&h=280)
Low pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Protects connection points around FRP tanks and is effective in vibration prevention for low-pressure pumps and blowers!
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 construction and mitigating or preventing 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, and since then, it has added new products to meet customer needs, including the high-pressure P type integrated product F type with PTFE. Today, it is used by a wide range of customers across various industries, from household drinking water to chemical plant piping. 【Features】 1. Low deformation stress, suitable for vibration damping and expansion absorption in low-pressure plastic piping. 2. Excellent installation work due to the use of loose flanges. For more details, please contact us or refer to the catalog.
![Expansion Joint "EP Joint" [A1 Flex]](https://image.mono.ipros.com/public/product/image/c6e/2000404399/IPROS12529688215632007319.jpg?w=280&h=280)
Pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Active in vibration isolation for factory equipment pumps and blowers!
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. Since then, it has added new products to meet customer needs, including the high-pressure P type integrated with PTFE and the F type. Today, it is used by a wide range of customers in 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.
![Expansion Joint "EP Joint" [P Type / Small Diameter]](https://image.mono.ipros.com/public/product/image/486/2000404402/IPROS13454254446086523428.jpg?w=280&h=280)
Pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Active in vibration isolation for general-purpose pumps and blowers in factory equipment, as well as absorbing expansion in heat-resistant resin piping!
Expansion 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. Since then, it has added new products to meet customer needs, including the high-pressure P-type integrated product F-type with PTFE. 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.
![Expansion Joint "EP Joint" [RF Type]](https://image.mono.ipros.com/public/product/image/4f6/2000404410/IPROS12093212574472110737.jpg?w=280&h=280)
Low pressure, internal PTFE type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Active in piping for corrosive fluids in chemical plants and vibration prevention for corrosion-resistant pumps!
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 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, and since then, it has added new products to meet customer needs, including the high-pressure P-type integrated product with PTFE, known as the 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. Low-pressure type with PTFE (polytetrafluoroethylene) inner surface coating 2. The liquid-contact part (inner surface) uses PTFE, providing excellent chemical resistance 3. Integration with durable and strong rubber improves resistance to external impacts For more details, please contact us or refer to the catalog.
![Expansion Joint "EP Joint" [SF Type]](https://image.mono.ipros.com/public/product/image/c4d/2000404412/IPROS2049013333675908363.jpg?w=280&h=280)
Super soft, inner PTFE type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Effective in piping for corrosive gases in chemical plants!
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 construction and mitigating or preventing 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, it has expanded to include new products that meet customer needs, such as the high-pressure P type integrated with PTFE and the 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. Pressure-type PTFE (polytetrafluoroethylene) inner surface coating type 2. Uses PTFE in the liquid contact area (inner surface), offering excellent chemical resistance 3. Improved resistance to external impacts due to integration with durable and strong rubber For more details, please contact us or refer to the catalog.
![Expansion Joint "EP Joint" [PL Type Large Diameter]](https://image.mono.ipros.com/public/product/image/0b0/2000417463/IPROS13081863331463641561.jpg?w=280&h=280)
Pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Active in absorbing expansion and displacement in factory equipment piping and water supply and drainage 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 the effects of 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, it has added new products to meet customer needs, including the high-pressure P type integrated product F type with PTFE. Today, it is used by a wide range of customers across various industries, from household drinking water to chemical plant piping. 【Features】 1. Has a larger allowable displacement than the P type. 2. Durable and stable due to the combination of strong reinforcing fibers and reinforcing steel wires. 3. Uses EPDM for the inner and outer rubber, offering excellent chemical resistance and weather resistance. 4. Excellent for installation work due to the use of loose flanges. For more details, please contact us or refer to the catalog.
Special function type expander!
High quality, low price, short delivery time. *Delivery time varies depending on length and quantity.
NFK's most popular No. 1 expander!
High quality, low price, short delivery time. *Delivery times vary depending on length and quantity.
NFK's most popular No. 1 equipment!
High quality, low price, short delivery time. *Delivery time varies depending on length and quantity.
Excellent stretchability! Double bellows type!
High quality, low price, short delivery time. *Delivery time varies depending on length and quantity.
It can be used for absorbing temperature differences in various pipes, absorbing core displacement, vibration absorption, ground subsidence, earthquake measures, etc.!
Products that can be used for transporting various gases and liquids (air, water, gas, steam, oil, exhaust gas, etc.) through piping in steelmaking, chemical, and various industrial plants, as well as for absorbing temperature differences in air conditioning and sanitary piping of architectural structures, absorbing core displacement, vibration absorption, ground subsidence, and earthquake countermeasures. We will select products according to your needs, so please feel free to contact us. We offer high quality, low prices, and short delivery times. *Delivery times may vary depending on length and quantity. *For more details, please refer to each product page.
I often hear about it in plumbing work, but to be honest, I don't really understand that term. I've picked it up and compiled it into a glossary!
In the "Plumbing Construction Terminology Volume 1," we will provide detailed explanations of commonly seen terms in plumbing work. - Interlayer displacement - Expansion joint - Electrolysis and more. Please feel free to download and make use of it.
Did you know? Flexible pipes are essential for refrigerant copper pipes in the expansion joint sections of government buildings!
A clear and easy-to-understand comic explanation about the construction of expansion joint sections. - Why is "Reflex" recommended for refrigerant copper pipes? - What does the Ministry of Land, Infrastructure, Transport and Tourism's specification document state? We will solve your questions! Please download the materials and make use of them. According to the Ministry of Land, Infrastructure, Transport and Tourism's "Standard Specifications for Public Building Construction," the piping that passes through the expansion joint section is required to use flexible joints. "Reflex," which complies with these piping guidelines, has seen a rapid increase in demand for the proper adoption of joints and is being introduced in public schools one after another. *For more details, please refer to the PDF materials or feel free to contact us.
Can be used for connecting dewatered sludge piping! High-pressure compatible expansion joint.
The "E Series K Type" is a high-pressure expansion joint designed for a maximum operating pressure of 2.0 MPa. It uses EPDM for the inner rubber material and conforms to JIS 20K flange standards. This product is intended to absorb the expansion and contraction of piping due to temperature changes and to reduce vibration and noise from rotating equipment such as pumps. It can be used for connections in air conditioning piping for high-rise buildings as well as for connections in dewatered sludge piping. [Purpose] - Absorption of expansion and contraction of piping due to temperature changes - Vibration and noise reduction for rotating equipment such as pumps *For more details, please refer to the PDF document or feel free to contact us.
Introducing various blade hoses such as general-purpose flange types and union types.
This catalog features the blades, hoses, and expansion joints handled by our company. We introduce various products including the stainless steel flange type "Z-2000NW" for liquid contact parts, the non-welded flange type "Z-3000" specified by government agencies, and the all-stainless steel flange type "Z-5000." Additionally, it includes a bellows specification table, types and structures of expansion joints, and a pressure loss table, making it a useful reference when considering implementation. [Contents (partial)] ■ Bellows specification table / Applicable bellows ■ Z-2000NW ■ Types and structures of expansion joints ■ Z-15000 ■ Saturated steam table *For more details, please download the PDF or feel free to contact us.
To absorb vibrations and noise generated in the piping, as well as the expansion and contraction of the piping due to temperature changes!
The product is an expansion joint that absorbs vibrations, noise, and expansion/contraction occurring in piping. The flexible part of the main body has an arch-shaped structure that effectively absorbs deformation caused by external forces. It is lightweight, making it easy to handle, and the face-to-face length can be freely designed according to the installation conditions. 【Features】 ■ Quickly restores to its original shape ■ Lightweight, making it easy to handle ■ Wrapped design, size-free ■ Face-to-face length can be freely designed according to installation conditions *For more details, please visit our website through the PDF materials or related links, or feel free to contact us.
You can choose a structure suitable for various usage conditions such as heat resistance, pressure resistance, and corrosion resistance!
We would like to introduce the "Expansion Joint" that we handle. It ensures complete sealing and is easy to maintain. It is suitable for liquids such as gas, exhaust gas, incineration gas, and air. Additionally, structures suitable for various operating conditions such as heat resistance, pressure resistance, and corrosion resistance can be selected, simplifying piping space and reducing piping costs. Please feel free to contact us when you need assistance. 【Applicable Liquids (Partial)】 ■ Gas ■ Exhaust gas ■ Incineration gas ■ Air ■ High-temperature air ■ Oil *For more details, please download the PDF or feel free to contact us.
![Expansion Joint "EP Joint" [High Pressure SP Type]](https://image.mono.ipros.com/public/product/image/e3c/2000403984/IPROS17233843557059995933.jpg?w=280&h=280)
High-pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! High pressure resistance, excellent chemical and heat resistance! Suitable for water supply systems! [Ministry of Land, Infrastructure, Transport and Tourism specifications]
Expansion joints (flexible 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, 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. Minimal dimensional changes between surfaces due to internal pressure 2. Effective in vibration control 3. High pressure resistance performance usable up to 1.96 MPa (20 kgf/cm²) 4. The inner surface uses synthetic rubber with excellent chemical and heat resistance 5. Small arch with minimal liquid pooling 6. Applicable for drinking water supply For more details, please contact us or refer to the catalog.
![Expansion Joint "EP Joint" [Spherical Flex]](https://image.mono.ipros.com/public/product/image/184/2000404386/IPROS15916941000134434262.jpg?w=280&h=280)
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.
![Expansion Joint "EP Joint" [PL Type Small Diameter]](https://image.mono.ipros.com/public/product/image/7cf/2000404403/IPROS2588816481575728039.jpg?w=280&h=280)
Pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Active in absorbing expansion and displacement in factory equipment piping and water supply and drainage piping!
Expansion 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 construction, 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, it has added new products to meet customer needs, including the high-pressure P type integrated product F type with PTFE. Today, it is used by a wide range of customers across various industries, from household drinking water to chemical plant piping. 【Features】 1. Greater allowable displacement than the P type 2. Stable durability with a combination of strong reinforcing fibers and reinforcing steel wires 3. Uses EPDM for inner and outer rubber, offering excellent chemical resistance and weather resistance 4. Excellent for installation work due to the use of loose flanges For more details, please contact us or refer to the catalog.
![Expansion Joint "EP Joint" [PB Type]](https://image.mono.ipros.com/public/product/image/87c/2000404404/IPROS6079056625081122540.jpg?w=280&h=280)
Pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Effective in vibration damping for general-purpose pumps and blowers in factory equipment, as well as 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 installations. 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 high-pressure P type integrated product F type with PTFE. Today, it is used by a wide range of customers across 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 create a straight inner surface, preventing liquid accumulation. 2. The use of loose flanges enhances installation work. For more details, please contact us or refer to the catalog.
![Expansion Joint "EP Joint" [PF Type]](https://image.mono.ipros.com/public/product/image/40e/2000404411/IPROS526157783386608495.jpg?w=280&h=280)
Pressure and internal PTFE type! Absorbs vibration, noise, expansion, and displacement in piping systems! Active in piping for corrosive fluids in chemical plants and vibration prevention for corrosion-resistant pumps!
Expansion 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 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. Since then, it has added new products to meet customer needs, including the high-pressure P type integrated product F type with PTFE. Today, it is used by a wide range of customers across various industries, from household drinking water to chemical plant piping. 【Features】 1. Pressure type PTFE (polytetrafluoroethylene) inner surface coating type 2. Uses PTFE in the liquid contact area (inner surface), providing excellent chemical resistance 3. Improved resistance to external impacts through integration with durable and strong rubber For more details, please contact us or refer to the catalog.
![Expansion Joint "EP Joint" [P Type / Large Diameter]](https://image.mono.ipros.com/public/product/image/a29/2000417458/IPROS17161479902834368274.jpg?w=280&h=280)
Pressure type! Absorbs vibrations, noise, expansion, and displacement in piping systems! Active in vibration reduction for general-purpose pumps and blowers in factory equipment, as well as 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 installations. 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 F type, which is an integrated product with the high-pressure P type PTFE. Today, our products are 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. Use of EPDM for the inner and outer rubber, providing excellent chemical resistance and weather resistance. 3. Excellent installation workability due to the use of loose flanges. For more details, please contact us or refer to the catalog.
Disaster response.
Concrete and steel expand and contract due to temperature differences. Therefore, in large-scale buildings, there may be cases of cracking. By structurally dividing from the beginning, it is possible to disperse forces and prevent the aforementioned damage. It is also effective as a countermeasure against the frequent earthquakes. Expansion joints are utilized in this way at structural joints. For more details, please contact us or refer to the catalog.
