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Fittings Product List and Ranking from 386 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Dec 17, 2025～Jan 13, 2026
This ranking is based on the number of page views on our site.

Fittings Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Dec 17, 2025～Jan 13, 2026
This ranking is based on the number of page views on our site.

  1. ベンカン機工 Gunma//Ferrous/Non-ferrous metals
  2. イハラサイエンス Tokyo//Machine elements and parts
  3. アラム Osaka//Machine elements and parts
  4. 4 NITTO KOHKI CO., LTD. Tokyo//Other manufacturing
  5. 5 CPC（コールダー・プロダクツ・カンパニー）・ジャパン・オフィス Kanagawa//Machine elements and parts
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Fittings Product ranking

Last Updated： Aggregation Period:Dec 17, 2025～Jan 13, 2026
This ranking is based on the number of page views on our site.

  1. This is an explanation of the welded pipe fittings PT370 and PG370. ベンカン機工
  2. Secure connection! Japanese-made fluororesin fittings are ARAM Lock! アラム
  3. Fittings for stainless steel pipes, e-fit EM series イハラサイエンス
  4. 4 Directly mountable on the panel! "High Flow Coupler Flange Fixed Type" NITTO KOHKI CO., LTD.
  5. 5 Seamless stainless steel butt-welded pipe fitting ベンカン機工

Fittings Product List

211～225 item / All 1977 items

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Ultra-Compact and Ultra-Lightweight Joint Catalog

Ultra-Compact and Ultra-Lightweight Joint Catalog

One-touch connection is now possible.

The smallest and slimmest among CPC products, suitable for use in tight spaces. Prevents incorrect connections with lure locks. Features a mechanism to prevent damage to the extremely thin joint section, which is the biggest issue with small fittings (U.S. patent). Also available in all-plastic versions, including disposable options. There is a panel mount type for wall installation. Due to being made of resin, it is low-cost and compatible with extremely thin tubes. Products suitable for dust-free clean rooms are available for medical and precision machinery applications. <CPC Plastic Fitting Features> Lightweight and inexpensive. Rust prevention measures included. Usable for both gases and liquids. The tube can rotate freely, reducing twisting and preventing tube disconnection accidents during use. In the valve type, even when removed under pressure, it automatically stops the liquid (gas).

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  • Analytical Equipment and Devices

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Liquid cooling (water cooling) small fittings for rack mount RPLQ4

Liquid cooling (water cooling) small fittings for rack mount RPLQ4

Coupling joint with a fixation prevention structure under patent application

It is designed to prevent accidents such as valve leaks due to adhesion or disconnection, even when connected for long periods. The RPLQ4 features a compact, non-spill design that minimizes liquid dripping during attachment and detachment, with very little air intrusion. By preventing seal adhesion, this highly reliable product is ideal for liquid cooling of precision equipment such as supercomputers, data center servers, large communication servers, and generator transformers. It is also effective in addressing seal material adhesion caused by fluorinated cleaning and cooling fluids (such as Fluorinert and Isceon).

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  • joint

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Error Connection Prevention IC Tag Equipped Joint Identicquick MAR

Error Connection Prevention IC Tag Equipped Joint Identicquick MAR

Consolidation of up to 8 RFID reader connections into a single interface iMAR Series Identicquick MAR

The insert part is equipped with a writable IC tag that transmits fluid data before connection, preventing incorrect connections with a misconnection prevention IC tag joint. Only the correct fluid connections are made, significantly enhancing the safety of the equipment. It is also possible to write data such as inventory information, package size, and part numbers. The body part is designed to transmit information to computers and machinery. 【Features of the iMAR Series】 - By controlling multiple lines with a single interface, system design is simplified. Installation of devices such as tags and readers is also easy. - Liquid handling procedures are streamlined, transmitting liquids and information to their respective flow paths. - The size of a single device is approximately 6x10x2.5 centimeters, making it easy to install even in spaces with limited installation area. - Using a standard PLC12 partition-mounted body and an insert with RFID functionality makes it easy for existing customers to add RFID capabilities to their existing equipment.

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  • joint

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Small connector for liquid cooling (water cooling) for rack mount, BLQ2.

Small connector for liquid cooling (water cooling) for rack mount, BLQ2.

A joint (coupling joint) with a patented anti-fixation structure.

It achieves a highly reliable, leak-free connection and disconnection to protect valuable electronic products. The BLQ2 is specially designed for rack-mounted liquid cooling and utilizes patented valve technology that eliminates leaks and withstands long-term connections. The BLQ2 is specifically designed for applications where connection and disconnection, as well as the latch mechanism, are maintained by system functions other than the connector. Instead of a latch, the BLQ2 features chamfering and a tip that fit the connector during connection. The BLQ2 uses the same innovative valve technology as the LQ2. Like all LQ series products, the BLQ2 employs sealing materials that can seal at multiple points to ensure the reliability of the connector (rather than a single seal like an O-ring).

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  • joint

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"SEMICON CUPLA", Compatible with Various Chemical Piping Applications - Ideal for the Semiconductor and Chemical Industries

"SEMICON CUPLA", Compatible with Various Chemical Piping Applications - Ideal for the Semiconductor and Chemical Industries

Handles high-purity chemicals used in semiconductor manufacturing - Also suitable for biochemical and chemical plants

This catalog introduces the "Semicon CUPLA," a quick connect fluid coupling for semiconductor manufacturing equipment. The components include the "SP Type," which has undergone electrolytic polishing to enhance corrosion resistance, the "SCS Type," which uses fluororesin for valve seal material, and the "SCAL Type," which minimizes liquid leakage upon disconnection, among a wide range of product lineups. Please utilize this for product selection. [Contents] ■ Overview of CUPLA / Notice of Green Procurement ■ Glossary / How to Indicate Product Models ■ Semicon CUPLA SP Type (Standard Product) ■ Semicon CUPLA SCS Type (Standard Product) ■ Semicon CUPLA SCY Type (Standard Product) ■ Semicon CUPLA SP-GN Type (Semi-Standard Product) *For more details, please refer to the PDF document or feel free to contact us.

  • Coupler

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Ideal for Air Piping and Pneumatic Tool Connections in Factories - HI CUPLA Series

Ideal for Air Piping and Pneumatic Tool Connections in Factories - HI CUPLA Series

Designed for a wide range of applications – Over 100 variations available by body material, size, and mounting style

This catalog introduces the "HI CUPLA Series," quick connect fluid couplings for low-pressure and air piping applications handled by our company. The lineup includes the "HI CUPLA BL," which prevents unintentional disconnection after connection with a sleeve lock, and the "Nut CUPLA," which allows for easy and secure attachment of polyurethane hoses without the need for hose clamps. We offer a wide range of variations equipped with various functions. [Contents] ■ HI CUPLA BL ■ HI CUPLA for Braided Hose ■ Nut CUPLA ■ HI CUPLA Series ■ HI CUPLA for Manifold Piping ■ Large Diameter HI CUPLA Series For more details, please refer to the PDF document or feel free to contact us.

  • Pipe Fittings

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Compatible with High-Viscosity Fluids – TSP CUPLA with Ball Valve

Compatible with High-Viscosity Fluids – TSP CUPLA with Ball Valve

Valve Operation Possible Even When Connected! The ball valve design ensures minimal pressure loss and enables high flow rates

The "TSP CUPLA" is a quick connect fluid coupling for gases and liquids. It features a compact design that integrates a socket and ball valve, known as "with ball valve," and a unique two-piece structure for "braided hose connection types" that eliminates the need for hose band tightening. Using them as a set is even more effective. [Features of the Ball Valve Type] - Approximately 30% reduction in total length compared to when a standard ball valve is attached to the TSP coupler. - The integrated structure eliminates the need to attach a ball valve to the coupler. - Coupler design accommodates flexible piping applications. - Equipped with a sleeve lock mechanism to prevent accidental disconnection when opening or closing the valve. For more details, please refer to the PDF document or feel free to contact us.

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  • Pipe Fittings

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Handles Pressure Fluctuations! HSP CUPLA: Quick Connect Couplings for Hydraulic Piping

Handles Pressure Fluctuations! HSP CUPLA: Quick Connect Couplings for Hydraulic Piping

Equipped with a highly impact-resistant valve material, making it suitable for die casting machines with pressure fluctuations!

HSP-DC CUPLA is a quick connect coupling for hydraulic piping, featuring full surface electroless nickel-phosphorus plating, which is insoluble in fire-resistant water glycol type hydraulic fluid. Available in five thread sizes: 1/4", 3/8", 1/2", 3/4", and 1". HSP CUPLA and this product are interchangeable in the same size. With its impact-resistant valve material, this product is suitable for die casting machine applications with large pressure fluctuations. Features: ■ Electroless nickel-phosphorus plating ■ Enhanced impact resistance ■ Wide range of thread sizes ■ Interchangeable with HSP CUPLA ■ Suitable for applications involving pressure fluctuations For more details, please refer to the PDF catalog or feel free to contact us.

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  • Pipe Fittings

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Efficient Coupling Solutions for Mold Cooling Systems – Mold CUPLA Series

Efficient Coupling Solutions for Mold Cooling Systems – Mold CUPLA Series

For the Molding Industry! Introducing our Hot Water CUPLA - designed to withstand temperatures up to 180°C - and Mold CUPLA that help reduce piping space in mold cooling systems.

MOLD CUPLA Series are quick connect couplings designed for the molding industry. Our lineup includes: - MOLD CUPLA, designed to streamline single mold changeovers. - HOT WATER CUPLA, designed to handle high-temperature water used in mold temperature control units. MULTI CUPLA Plate Type, which enables simultaneous connection/disconnection of multiple fluid lines, is also available. It improves mold change efficiency and prevents piping errors. Features of MOLD CUPLA: ■ Long sleeve design ■ Connect/disconnect with the plug embedded in the mold ■ Compact design with minimized outer diameter, suited for molds with narrow water ports ■ Short plug length for efficient mold storage ■ High-flow type available, delivering approximately twice the flow rate of general-purpose CUPLA For more details, please refer to the PDF catalog or feel free to contact us.

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  • Pipe Fittings

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Handles High Temperatures Up to 180°C for Molding – Hot Water CUPLA

Handles High Temperatures Up to 180°C for Molding – Hot Water CUPLA

Equipped with Safety Lock to Prevent Accidental Disconnection! Socket features double O-rings for enhanced sealing performance.

The HW Series is a quick connect fluid coupling designed for general-purpose temperature control piping applications. Equipped with a safety lock mechanism, it prevents accidental disconnection caused by vibration or impact after connection. It is nickel-plated for enhanced corrosion resistance, and features seal materials optimized for hot water applications. Features: ■ Built-in safety lock mechanism Prevents accidental disconnection due to vibration or impact ■ Nickel-plated wetted parts Improves corrosion resistance for long-term durability ■ Sealing materials suitable for hot water applications Double O-ring design on the socket enhances sealing performance For more details, please refer to the PDF catalog or feel free to contact us.

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  • Pipe Fittings

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Smooth Connection by Releasing Residual Pressure – SP CUPLA Type A PV Type

Smooth Connection by Releasing Residual Pressure – SP CUPLA Type A PV Type

Equipped with a residual pressure purge function! Eliminate residual pressure with just one connecting operation.

SP CUPLA Type A PV Type is a general-purpose quick connect coupling for medium pressure, equipped with a purge valve. It enables smooth connection even when residual pressure remains. No separate purge work required, as the pressure is released during connection. The purge valve on the plug is pressed during connection, releasing residual pressure and completing the connection in one step. Features: ■ Made-to-order item ■ Equipped with a residual pressure purge valve (up to 1 MPa) ■ Smooth connection even under residual pressure ■ No separate purge work is required. Residual pressure is released during connection. For more details, please refer to the PDF catalog or feel free to contact us.

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  • Pipe Fittings

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HSU CUPLA - For Harsh Environments Like Marine Development

HSU CUPLA - For Harsh Environments Like Marine Development

Sleeve lock prevents accidental disconnection for enhanced safety! Corrosion resistant stainless steel body ensures durability.

HSU CUPLA is a quick connect coupling for high pressure applications, made of corrosion resistant stainless steel. The new design offers a more compact body and increased flow rate compared to our S210 CUPLA. It is equipped with a sleeve lock to prevent accidental disconnection. The seal material is hydrogenated nitrile rubber (HNBR), suitable for various fluids. Features: ■ High flow rate with compact design ■ Sleeve lock prevents accidental disconnection; easily locked by shifting the sleeve groove and stopper position ■ HNBR seal material supports various fluids For more details, please refer to the PDF catalog or feel free to contact us.

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  • Pipe Fittings

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Actively Used in Hydrogen Stations! Quick Connect Couplings for Fueling High Pressure Hydrogen, HHV CUPLA

Actively Used in Hydrogen Stations! Quick Connect Couplings for Fueling High Pressure Hydrogen, HHV CUPLA

Nitto Kohki supports FCV (fuel cell vehicles) through HHV CUPLA!

HHV CUPLA is a quick connect coupling for fueling high pressure hydrogen. It was chosen for the component of Toyota's new second-generation MIRAI, and also used in hydrogen stations all over Japan. For more details, please refer to the PDF catalog or feel free to contact us.

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  • Coupling

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Contributes to Building a Carbon-Neutral Society! CUPLA Series for Hydrogen

Contributes to Building a Carbon-Neutral Society! CUPLA Series for Hydrogen

Introducing CUPLA for Hydrogen – Powering the Path to Carbon Neutrality

This catalog features quick connect couplings for hydrogen. It covers a wide range from low pressure models suitable for space saving and lightweight use, to high pressure models with a working pressure of 87.5 MPa, suitable for leak and pressure resistance testing. Featured products: 1. H2-CZL CUPLA (for low pressure) 2. H2-HSU CUPLA (for medium pressure) 3. Receptacle / Simplified nozzle (for high pressure), etc. *For more details, please refer to the PDF catalog or feel free to contact us.

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  • Coupling

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Directly mountable on the panel! "High Flow Coupler Flange Fixed Type"

Directly mountable on the panel! "High Flow Coupler Flange Fixed Type"

Shorten work time during panel installation! Achieve improved cooling performance and installation efficiency!

The "High Flow Coupler with Flange Fixation" is a quick fluid connector with a flange that can be directly mounted to the equipment panel. Its large flow design enhances cooling efficiency while allowing for quick installation and maintenance on the panel. 【Features】 - Diamond-shaped flange design allows for installation in narrow spaces - Automatic opening and closing valves built into both the plug and socket - Quick connection and disconnection of cooling piping - Compact space-saving design (connection length reduced by up to 22% compared to our standard) *This product is a semi-standard item. For more details, please feel free to contact our sales representative.

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  • Pipe Fittings

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