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Coupling Product List and Ranking from 102 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Dec 24, 2025～Jan 20, 2026
This ranking is based on the number of page views on our site.

Coupling Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Dec 24, 2025～Jan 20, 2026
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. 藤川伝導機 Tokyo//Industrial Machinery
  4. 4 ストーブリ Osaka//Industrial Machinery
  5. 5 null/null
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Coupling Product ranking

Last Updated： Aggregation Period:Dec 24, 2025～Jan 20, 2026
This ranking is based on the number of page views on our site.

  1. ROTEX Flexible Coupling ケーティーアールジャパン
  2. Grip Lock CAD Data List
  3. KTR offers a wide range of couplings to meet diverse application needs! ケーティーアールジャパン
  4. Toyo Love Flex Coupling Catalog 藤川伝導機
  5. 4 Magnet Coupling "DST" 日本フローコントロール

Coupling Product List

136～150 item / All 838 items

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One-touch airtightness testing seal jig "Seal Clamp"

One-touch airtightness testing seal jig "Seal Clamp"

One-touch type! A sealing jig for airtight inspection that clamps and seals all types of work.

The "Seal Clamp" is a labor-saving device that allows for easy connection and sealing to the inspection target (workpiece) in the inspection processes of various products in the automotive and HVAC industries. Unlike traditional screw-in or flange-fixed methods, it connects and seals with just a one-touch insertion into the workpiece. Due to its structure that applies sealing pressure, it experiences less wear on rubber materials such as gaskets, and its diverse clamp designs ensure reliable locking and sealing. 【Features】 ■ One-touch connection ■ High airtight performance ■ Minimal wear and consumption of sealing materials ■ Reliable locking and sealing with a variety of clamp structures For more details, please refer to the catalog or feel free to contact us.

  • Pipe Fittings
  • Vice Clamps

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Standard socket for air general pressure

Standard socket for air general pressure

This is a highly versatile socket!

Introducing the standard socket. This socket is highly versatile, suitable for connecting air piping and air tools within the factory. (Regarding the rotary function: It has a swivel feature that eliminates hose twisting.) There are six types in the lineup: - Male thread socket - Female thread socket - Bamboo shoot socket - Nut socket - Bamboo shoot socket with rotary function - Nut socket with rotary function ◎ For more details, please download and view the catalog.

  • socket

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World's smallest and lightest class! Resin non-spill NS1 coupling.

World's smallest and lightest class! Resin non-spill NS1 coupling.

A low-cost non-spill connector that eliminates liquid dripping during attachment and detachment! Suitable for ink and medical use too!

CPC's one-touch fittings (couplings) have a lineup of over 18,000 types. Among them, the 'push-button non-spill joint,' which is classified as the world's smallest and lightest (*), is a fitting that contributes to the miniaturization of final products without causing liquid drips during attachment and detachment. It can be attached and detached with one hand in an instant while under pressure, and it minimizes air entry into the line to nearly zero, preventing the solidification and deterioration of inks and other substances. If you are considering cost reduction and weight reduction for stainless steel couplings, we also offer fittings made from super engineering plastic polysulfone. For more details, please download the catalog. You can also view a demonstration at the link below. http://www.youtube.com/watch?v=R55q-mLkXE0 * World's smallest and lightest... as a push-button non-spill fitting with valves on both sides. As of 2019.

  • PC・レーザーなどの液体冷却用継手.JPG
  • MPX.JPG
  • Endoscope reprocessing equipement.JPG
  • Medical lasers.JPG
  • NS1 画像.jpg
  • joint

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Tube fittings, bamboo shoot joints/connectors (including ultra-small ones)

Tube fittings, bamboo shoot joints/connectors (including ultra-small ones)

Various polypropylene and nylon fittings are available in ultra-small sizes, including threaded options. Custom orders can be accommodated for large quantities.

Various polypropylene and nylon fittings (joints and connectors). Compatible with tubes and hoses with inner diameters ranging from 1/16 inch (1.6mm) to 3/8 inch (9.6mm). Ultra-small sizes and threaded options are also available. Please refer to page 53 of the downloadable catalog.

  • Analytical Equipment and Devices

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1/8 inch (3.2 mm) diameter MPC (joint connector)

1/8 inch (3.2 mm) diameter MPC (joint connector)

Pharmaceutical manufacturing, for low flow applications.

The MPC coupling, which has a dominant share in pharmaceutical manufacturing applications, has an inner diameter of 1/8 inch (3.0 mm) for the hose barb. The MPC coupling is widely used in medical applications both domestically and internationally. It is made from polycarbonate and polysulfone, making it suitable for various low-flow applications. It is also ideal for aseptic sampling, handling of retractors and markers, as well as applications in bioreactors and regenerative medicine. Additionally, there is clinical data available for its use in artificial heart-lung machines (approved medical device components) in Japan. It has also been successfully used in Europe and the United States. Safety data submission is possible. For more details, please contact us.

  • MPCシリーズ　画像.jpg
  • Coupling

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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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