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Coupling Product List and Ranking from 39 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

Coupling Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. ケーティーアールジャパン Hyogo//Machine elements and parts
  2. null/null
  3. null/null
  4. 4 藤川伝導機 Tokyo//Industrial Machinery
  5. 5 ストーブリ Osaka//Industrial Machinery
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Coupling Product ranking

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. Torque sensor coupling "ROBA-DS 9110/9210"
  2. ROTEX Flexible Coupling ケーティーアールジャパン
  3. Grip Lock CAD Data List
  4. 4 Rubber Products - Special Rubber - CG Coupling 丸山産業
  5. 5 KTR offers a wide range of couplings to meet diverse application needs! ケーティーアールジャパン

Coupling Product List

136～150 item / All 815 items

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World's smallest push-button non-spill coupling NS1 series

World's smallest push-button non-spill coupling NS1 series

Non-spill type that eliminates liquid dripping during attachment and detachment, and is the smallest size in the world.

It eliminates liquid dripping during attachment and detachment. It also minimizes air entry during attachment and detachment. It is the world's smallest, lightweight, and low-cost. The O-ring material is EPDM, which has excellent ozone resistance, heat resistance, and weather resistance. It is suitable for applications such as inkjet printers, liquid cooling, and medical use.

  • Pipe Fittings

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Coupling for connecting tubes of different diameters (fitting) for tube diameter conversion!

Coupling for connecting tubes of different diameters (fitting) for tube diameter conversion!

For connecting various tubes and tubes.

CPC offers 8,000 types of coupling connectors that can connect tubes of different diameters. It is possible to convert various sizes of tubes and hoses, from microtubes to 19 mm. Additionally, conversions between hard tubes and soft tubes, as well as connections between tubes and threads, and between sanitary (ferrule) fittings and tubes, are also possible. <CPC Plastic Fitting Features> Lightweight and low-cost. Suitable for both gases and liquids. All-plastic options are also available for disposable use. Dust-free cleanroom-compatible products are recommended for medical and precision machinery applications. The tubes can rotate freely, reducing twisting and preventing accidents of tube disconnection during use. In valve-equipped types, even when removed under pressure, liquids (gases) are automatically stopped. There is a wide range of couplings made from plastics that have been confirmed for safety, including NSF standard C-2 and USP type VI, ensuring food safety.

  • joint

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Non-spill coupling catalog NS4 for preventing antifreeze scattering.

Non-spill coupling catalog NS4 for preventing antifreeze scattering.

To prevent the scattering of antifreeze.

Non-spill coupling to prevent antifreeze scattering. <Features of CPC Plastic Fittings> Lightweight and low cost. Rust prevention. Usable for both gases and liquids. All-plastic versions are also disposable. Products compatible with dust-free clean rooms are suitable for medical and precision machinery. There is a wide range of couplings made from plastics that have been confirmed safe, including NSF standard C-2 and USP Class VI, to ensure food safety. <Features of CPC Plastic Fittings> Lightweight and low cost. Rust prevention. Usable for both gases and liquids. All-plastic versions are also disposable. Products compatible with dust-free clean rooms are suitable for medical and precision machinery. Tubes can rotate freely, reducing twisting and preventing tube disconnection accidents during use. In valve types, liquids (gases) automatically stop when removed under pressure. There is a wide range of couplings made from plastics that have been confirmed safe, including NSF standard C-2 and USP Class VI, to ensure food safety.

  • NS4 画像.jpg
  • joint

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World's smallest push-button non-spill coupling NS1 series

World's smallest push-button non-spill coupling NS1 series

Compatible with diameters from 3.2 mm to micro tubes.

The NS1 series coupling is a non-spill type that prevents liquid dripping when removed. The air intrusion into the flow path is also extremely minimal. The NS1 is the smallest non-spill coupling, compatible with sizes from 3.2mm to microtubes. It has a rotating function that eliminates twisting of the tube. It is ideal for applications that require repeated connections and disconnections. Not only is it simple and easy to use, but it also allows for safe and reliable connections. <Features> Lightweight and low-cost. Usable for both gases and liquids. In the valve type, it automatically stops the liquid (gas) even when removed under pressure.

  • CPC製品写真.JPG
  • インクジェットプリンター用継手.JPG
  • joint

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HPLC (DG) safety cap compatible coupling with valve

HPLC (DG) safety cap compatible coupling with valve

Can be directly assembled onto the 1/4-28UNF screw of the HPLC(DG) safety cap.

The HPLC safety cap (DG safety cap) is a closed system for glass bottles manufactured by DURAN and sold by Shibata Scientific. Our PMCD24042812 coupling can be directly integrated with the 1/4-28 UNF thread of the HPLC safety cap (DG safety cap). By incorporating our coupling with valves on both sides, the following benefits can be achieved: 1) Safe and instantaneous attachment and detachment without depressurization (no splattering like a spray). 2) The rotary mechanism prevents bending and twisting of thin or rigid tubes. 3) It allows for different diameter joints, enabling connections with various tube diameters on the button side.

  • PMCD24042812.JPG
  • Analytical Equipment and Devices

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PMC12 adjacent mounting insert

PMC12 adjacent mounting insert

Medical fittings (joints, couplings, connectors) PMC12 insert for partition mounting

The material is polypropylene, which provides excellent chemical resistance and expands its applications. The integrated joint section reduces the number of potential leak points, allowing for a shorter installation time for microtubes. There are also products with valves. Extremely fine tubes can be easily and securely attached and detached, making maintenance and replacement of liquid delivery bottles straightforward. <CPC Plastic Fitting Features> Lightweight and low-cost. Rust prevention. Usable for both gases and liquids. All-plastic versions are also available for disposable use. Dust-free cleanroom compatible products are suitable for medical and precision machinery applications. The tubes can rotate freely, reducing twisting and preventing accidents of tube detachment during use. In the valve-equipped type, liquids (gases) are automatically stopped even when removed under pressure. There is a wide range of couplings made from plastics that have been confirmed to be safe, such as NSF standard C-2 and USP Class VI, ensuring food safety.

  • PLC12 画像.jpg
  • Analytical Equipment and Devices

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Ringfeeder Co. Automatic Trailer Coupling

Ringfeeder Co. Automatic Trailer Coupling

Compliant with EC standard 94/20, type approval class C50-X.

Heavy-duty center axle for 50mm diameter drawbar and automatic trailer coupling for full trailers.

  • Other Auto Parts

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Hydraulic coupling

Hydraulic coupling

Environmentally friendly

These series are non-spill types that comply with ISO16028 or are ISO16028 compliant, designed to prevent oil leakage during attachment and detachment, and are environmentally friendly. They adhere to a globally recognized ISO standard, making them usable overseas. In particular, the APM(M) series can be detached at residual pressures of up to 300 bar, with sizes ranging from 3/8 (APM9) to 1-1/2 (APM30), featuring thread shapes of BSP and NPT, and flow rates of approximately 60 to 600 L/min (at a pressure drop of 4 bar), with a maximum pressure of 270 to 350 bar. The A series includes eight types ranging from 1/8 (A4) to 1-1/2 (A30), also with BSP and NPT thread shapes, flow rates of approximately 9 to 900 L/min (at a pressure drop of 4 bar), and a maximum pressure of 270 to 420 bar. Additionally, the FIRG series ranges in size from 1/4 (FIRG14) to 2 (FIRG200), with BSPT, BSP, and NPT thread shapes, flow rates of approximately 30 to 1500 L/min (at a pressure drop of 4 bar), and a maximum pressure of 200 to 330 bar. We have BSPT connection thread shapes in stock. These products are used in various machines, including construction, civil engineering, agriculture, and industrial machinery.

  • valve
  • Piping Materials
  • Hydraulic Equipment

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Flat Face Coupling "FIRG Series"

Flat Face Coupling "FIRG Series"

It reduces environmental impact by eliminating losses due to hydraulic oil leakage during attachment and detachment.

"FIRG" was developed in 1983 as the original flat face coupling. The development of this series was a significant reform in the market for self-sealing couplings. Widely used in hydraulic applications, the "FIRG" series has established itself as a leading model in line with the ISO16028 compatibility standard over time. Due to its high durability and various advantages, the "FIRG" series is increasingly recognized and used by hydraulic equipment manufacturers. Please consider using it to prevent oil leakage and contamination intrusion. 【Features】 ○ The flat face is easy to clean and effectively reduces contamination intrusion into the system. ○ There is no loss due to leakage of operating oil during connection and disconnection, reducing environmental impact. ○ Air entrapment during connection and disconnection is minimized, aiding optimal system operation. ○ The design of internal components to promote laminar flow prevents turbulence and minimizes pressure loss, helping to maintain system efficiency. ○ Strong against peak pressure. For more details, please contact us or download the catalog.

  • Coupling

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Screw-type flat face coupling "VP-P Series"

Screw-type flat face coupling "VP-P Series"

Effectively prevents detachment and hydraulic oil loss under conditions of high residual pressure.

The "VP-P" screw-type flat face coupling is a technical solution for the demands of hydraulic applications. The threaded connection prevents early wear and the sticking that can occur with mechanical locking ball systems. Therefore, it is suitable for applications with high pressure and frequent pulse generation. The triple valve system effectively prevents disconnection and hydraulic fluid loss under conditions of high residual pressure. The safety sleeve used in the connection system prevents unexpected disconnection due to strong vibrations or bending. 【Features】 ○ Easy to clean, effectively reducing contamination ingress into the system ○ Minimizes air entrapment during connection and disconnection, aiding optimal system operation ○ The patented internal component design is engineered to minimize pressure loss, preventing a decrease in system efficiency ○ Effective for easy connection under residual pressure conditions ○ Prevents unexpected disconnection through the safety sleeve of the connection system ○ Modular structure allows for diverse port specifications ○ Strong against peak pressure ○ Safe and simple to use ● For more details, please contact us or download the catalog.

  • Coupling
  • Piping Materials

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Flat Face Coupling "FIRG-Q Series"

Flat Face Coupling "FIRG-Q Series"

Higher corrosion resistance than standard galvanized products is effective in specific corrosive environments.

The "FIRG-Q" flat face coupling is suitable for the transfer of weakly corrosive environments and corrosive liquids (such as sugar water, water, glycol, etc.). This product is made of carbon steel and has undergone special nitriding and oxidation treatments on its surface. The internal valve components are made of stainless steel AISI 303, and seals can be selected according to the type of liquid and operating temperature. The flat face design eliminates leaks during connection and disconnection, preventing contamination from entering the system. The "FIRG-Q" series, featuring a flat face design and corrosion resistance, is mainly suitable for industrial machine applications. 【Features】 ○ Easy to clean, effectively reducing contamination intrusion into the system ○ No loss due to leakage of operating oil during connection and disconnection, reducing environmental impact ○ Minimizes air entrapment during connection and disconnection, aiding optimal system operation ○ Patented internal component design minimizes pressure loss 　→ Prevents reduction in system efficiency ○ Higher corrosion resistance than standard zinc-plated products is effective in specific corrosive environments ○ Strong against peak pressure ○ Compact appearance ○ Safe and simple to use ● For more details, please contact us or download the catalog.

  • Coupling

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Poppet valve type quick coupling "BIR Series"

Poppet valve type quick coupling "BIR Series"

Wide compatibility and a wide range of sizes - the most commonly used self-sealing coupling in the agricultural and industrial machinery sectors.

The "BIR" series is a poppet valve type quick coupling compatible with ISO7241-1 "A". This series is made of carbon steel and has a zinc-plated surface. These couplings offer wide compatibility and are available in a broad range of sizes from 1/4" to 2". Therefore, the "BIR" series is one of the most commonly used self-sealing couplings in the fields of agricultural and industrial machinery. 【Features】 ○ Enhanced sealing during disconnection due to the sealed poppet valve ○ Internal component design prevents turbulence and reduces pressure loss ○ Compact and slim design ○ Easy to use ● For more details, please contact us or download the catalog.

  • Coupling

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Poppet valve type quick coupling "IRB Series"

Poppet valve type quick coupling "IRB Series"

Compatible with international standard ISO 7241-1 "B" and used in various industrial hydraulic equipment.

The "IRB" is compatible with the world standard ISO 7241-1 "B" for poppet valve quick couplings. It features a carbon steel body with a zinc-plated surface treatment. It is designed for compatibility with global standards. The "IRB" is used in various industrial hydraulic applications. 【Features】 ○ The sealed poppet valve provides maximum sealing effect during disconnection. ○ The design of internal components is optimized to minimize turbulence and pressure loss. ○ Compact appearance. ○ Simple operation. ● For more details, please contact us or download the catalog.

  • Coupling

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Poppet valve type quick coupling "IRBO Series"

Poppet valve type quick coupling "IRBO Series"

Brass-bodied equipment active in the industrial machinery market where corrosion resistance is required.

"IRBO" is a quick coupling series with a poppet valve type, compatible with the international standard ISO 7241-1 "B". The body is made of brass, and the spring and locking ball are made of stainless steel. "IRBO" has been developed for applications in the industrial machinery market where the corrosion resistance of brass can be utilized. 【Features】 ○ The sealed poppet valve provides maximum sealing effect during disconnection. ○ The design of internal components is optimized to minimize turbulence and pressure loss. ○ Higher corrosion resistance compared to zinc plating. ○ Compact appearance. ○ Simple operation. ● For more details, please contact us or download the catalog.

  • Coupling

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Poppet valve type quick coupling "I Series"

Poppet valve type quick coupling "I Series"

The most common size coupling that expands the options for ports through a modular structure.

The "I" series is a poppet valve quick coupling with a modular structure, made of carbon steel and zinc-plated on the surface. This coupling is compact and offers various port options due to its modular design, meeting the demands of various applications. It is available in the most common size of 1/2”, compatible with ISO 7241-1 “A”. 【Features】 ○ The integrated seal poppet valve generates maximum sealing effect upon disconnection. ○ Optimal internal component design prevents turbulence and reduces pressure loss. ○ Modular structure expands port options. ○ Compact appearance. ○ Simple operation. ● For more details, please contact us or download the catalog.

  • Coupling

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