NITTO KOHKI CO., LTD. List of Products and Services

This catalog introduces Nitto Kohki's quick connect fluid coupling "CUPLA," which allows for the speedy connection and disconnection of various fluid lines such as air, water, oil, and gas. With extensive development experience of over 25000 types, it is utilized in a wide range of fields, primarily in the industrial sector. The materials for the main body, including steel, brass, aluminum alloy, stainless steel, and resin, are selected considering fluid characteristics to meet various user needs. [Included Content (Excerpt)] ■ Features and applications of "CUPLA" ■ Introduction of new products / "HHV CUPLA" ■ Nitto Kohki's environmental activities ■ Standard "CUPLA" series ■ Semi-standard "CUPLA" series ■ Special order "CUPLA" series *For more details, please refer to the PDF document or feel free to contact us.

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.

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.

ZERO SPILL CUPLA is a quick connect coupling for gases and liquids. Unique seal design reduces liquid spillage by about 96%, and air ingress by about 94% (compared to SP CUPLA Type A). New valve design offers smooth zero-friction movement. Push to connect design. A variety of body materials and sizes have been standardized to support a wide range of applications and situations Features - Improvement of work environment - Improved reliability - Improves workability - High versatility For more details, please refer to the PDF catalog or feel free to contact us.

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.

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.

CUPLA for Braided Hose Connection Quick connect fluid couplings specially designed for braided hoses. Available products include Mold CUPLA featuring a push-to-connect mechanism and built-in automatic shut-off valve, and CUPLA Adapter for Braided Hose Connection, which enables installation of male-threaded couplers via a dedicated adapter. No hose band or retightening required—thanks to our unique 2-piece structure. Features No hose band required, reducing risk of injury during handling No retightening needed, minimizing hose wear at the nut section Unique nut design increases hose pull-out resistance Easy installation—just insert the hose fully and tighten the nut to the end No inner parts, eliminating assembly mistakes For more details, please refer to the PDF catalog or feel free to contact us.

The "HYGIENIC CUPLA" is a quick connect fluid coupling of the easy-wash type. No tools are required, allowing all parts to be quickly disassembled, and with fewer components, cleaning is simple. The connection operation involves linking the plug and socket and applying the "safety lock," enabling a single operator to make the connection. Additionally, stainless steel equivalent to "SUS316L" is used for the parts in contact with the fluid. It is processed with buffing (#400) to prevent bacterial growth (electropolishing available), which suppresses material degradation with superior corrosion resistance. Features: ■ Simple connection ■ Safety lock function ■ Quick separation ■ Efficiency during maintenance ■ Easy full wash ■ Meets strict safety standards For more details, please refer to the PDF document or feel free to contact us.

"CJ-1" is a coupler connection jig that offers comfortable operability and versatility. By adjusting the overall length of the main body, it can accommodate all couplers of the target products. During connection operations, it can be used at any angle where the handle does not interfere with the coupler. If excessive load is applied during connection, the safety device activates to prevent damage to the main body. Features: ■ Connect large-diameter couplers lightly and smoothly with lever operation. ■ Accommodates all couplers of the target products by adjusting the overall length of the main body. ■ Can be used at any angle during connection operations where the handle does not interfere with the coupler. ■ The safety device activates to prevent damage to the main body if excessive load is applied during connection. For more details, please refer to the PDF document or feel free to contact us.

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.

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.

This catalog introduces Die Cast CUPLA Series, a lineup of quick connect couplings designed for use in the molding industry. HSP-DC CUPLA is suitable for core drive cylinders during mold clamping and opening. SP CUPLA Type A supports high-cycle operation and improves cooling and mold replacement efficiency. Use this catalog to help select the appropriate product for your application. Featured products: For hydraulic applications ■ HSP-DC CUPLA ■ PURGE ADAPTER PAD-2 ■ 350 CUPLA ■ FLAT FACE CUPLA F35 Type ■ FLAT FACE CUPLA FF Type

CUBE CUPLA is a quick connect coupling for air and water, featuring five body colors to prevent connection errors. Easily identify and connect lines with color-coded bodies, even when piping is hard to distinguish. Colors remain visible after connection. For tight installation spaces, we offer a convenient L-shaped plug option. Suitable for air piping in office equipment and in measurement and analytical instruments. Features: ■ Compact and lightweight resin body ■ Push-to-connect design ■ Easy disconnection with push button ■ Five color options to prevent misconnection ■ L-shaped plug available For more details, please refer to the PDF catalog or feel free to contact us.

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.

The PAD Series is a purge adapter that allows for quick and easy elimination of residual pressure in piping. The lineup includes the 'PAD-2 Type,' which enhances the speed of residual pressure removal, and the 'PAD-FM Type,' which is ideal for slim inline piping. Additionally, we offer CUPLA with a built-in residual pressure purge function, which enables smooth connection even when residual pressure is present during connection work, as well as the 'ZN Series' residual pressure release jig. Features: ■ Quick and easy elimination of residual pressure in piping ■ Smooth connection with 'CUPLA' ■ Simple one-push operation ■ If the button is stiff, operation with a screwdriver is also possible (PAD-2 Type) ■ Suitable for mounting screw sizes of 3/8 or larger (PAD-FM Type) For more details, please refer to the PDF document or feel free to contact us.

"MAM-A-ZEL" Type is a minimized spillage CUPLA. With 1/4" size and 6 ports, liquid spillage is reduced from 4.8 mL to just 0.36 mL. It solves the common issue of increased spillage with more ports. Customization is possible depending on your usage condition. Selectable options based on usage conditions: ■CUPLA MAM-A-ZEL Type (Minimized spillage type) MAM-A-SP Type (General purposed type) ■CUPLA size 1/4", 3/8", 1/2" ■Number of Ports 4, 6, 8, 12 ports For more details, please refer to the PDF catalog or feel free to contact us.

The CZL Series is a compact, high-flow quick connect coupling designed for cooling water piping. Suitable for cooling piping in electronic precision equipment such as supercomputers and power electronics applications. Its compact size allows for close-pitch piping, contributing to space-saving installations. In addition, it delivers a high flow rate, improving cooling efficiency. Features: ■ Compact design for space-saving piping ■ Maximum outer diameter 16 mm (1/8"), 18.5 mm (1/4") ■ High flow rate for enhanced cooling efficiency ■ Push-to-connect function ■ Unique valve structure minimizes liquid spillage and air ingress during connection and disconnection For more details, please refer to the PDF catalog or feel free to contact us.

The FBH series is a quick connect fluid coupling for air lines. It features a built-in on-off valve that allows for valve operation while connected, and the sleeve stopper function enables locking in both open and closed valve states. Additionally, when the valve is closed, it purges (exhausts) the residual pressure on the plug side. Its unique valve mechanism reduces pressure loss and achieves a high flow rate. Features: ■ Smooth connection and disconnection ■ Built-in on-off valve ■ Sleeve stopper function ■ Residual pressure purge function ■ High flow rate and low pressure loss ■ Lightweight For more details, please refer to the PDF document or feel free to contact us.

"SP-V Coupler Type A" is a quick connect fluid coupling designed for vacuum applications. It features an automatic open/close valve with an excellent sealing structure developed for refrigerant charging and vacuum drawing. Even when disconnected, both the socket and plug remain sealed, accommodating a wide range of vacuum drawing applications up to a vacuum level of 1.3×10⁻¹ Pa (equivalent to 1×10⁻³ mmHg). Additionally, to support manufacturing lines for air conditioners and refrigerators (charging, vacuum drawing, inspection), we offer three types of sealing materials. Features: ■ Improved durability through stress analysis and revision of packing shape ■ Adoption of a straight guide to enhance valve return stability (PAT) ■ Enhanced airtightness with a double seal structure (1/4, 3/8 sizes) ■ Standardization of three types of sealing materials *For more details, please refer to the PDF document or feel free to contact us.

Model FMC-30-3F/FMC-30-4F are replaceable Flow Vane Type. Fluid flow from low flow rate (2 L/min) can be visually checked with the rotating two-colored impeller and Flow Vane ASSY, common to Rc 3/8, Rc 1/2, can be replaced without removing it from the piping. We also offer FLOW METER model FM-03-B with a special valve designed for mold cooling lines, ensuring stable and accurate coolant flow rate. Features - Fluid flow from low flow rate (2 L/min) can be visually checked with the rotating two-colored impeller. - Flow Vane ASSY, common to Rc 3/8 and Rc 1/2, can be replaced without removing it from the piping. - The stopper prevents unintended removal of the plastic parts. - Installation and replacement is easy since the screw part of the T2 side rotates freely to the left and right. *For more details, please refer to the PDF catalog or feel free to contact us.

DUSTER CUPLA is a low-pressure quick connect coupling with an air dusting function, part of our HI CUPLA series. It allows air dusting without removing the connected tool, enhancing work efficiency. Equipped with a pressure balance valve for smooth button operation, and a ball bearing swivel mechanism that minimizes hose twisting and reduces hand fatigue. Features: ■ Built-in air dusting function in HI CUPLA series ■ Air dusting without tool removal ■ Smooth button operation with the pressure balance valve ■ Supports moisture draining before operation ■ Reduces hose twisting and hand fatigue. For more details, please refer to the PDF catalog or feel free to contact us.

FLATFACE CUPLA FF Type is a quick connect coupling for hydraulic piping, featuring a flat contact surface. Compared to our other 35 MPa hydraulic CUPLA, it delivers 1.5 to 2 times higher flow rate. Its unique valve structure minimizes spillage and air ingress during connection and disconnection. With a working pressure of 35 MPa, it is suitable for hydraulic piping with pressure fluctuations, such as those found in die casting machines. Features: - Easily connected simply by pushing the plug into the socket. - Separation prevention mechanism prevents accidental disconnection caused by vibration or impact during connection. - Available in various thread sizes (3/8", 1/2", 3/4", and 1") For more details, please refer to the PDF catalog or feel free to contact us.

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.

The 'Single Lock CUPLA' is a quick connect fluid coupling that locks the sleeve to prevent accidental disconnection of the socket and plug. The sleeve is equipped with a notch, and the socket body is fitted with a lock pin or ball, allowing the sleeve's movement to be fixed simply by turning it after 'CUPLA' connection. The valveless structure suits high viscosity fluids, including the 'TSP CUPLA,' and features a built-in automatic open/close valve to reduce fluid leakage upon disconnection, such as the 'SP CUPLA Type A,' along with readily available 'standard items' in a diverse lineup. Features: ■ Pursue safety ■ Lock completed simply by turning the sleeve ■ Separation is impossible unless the positions of the 'sleeve groove' and 'stopper' are aligned ※ For more details, please refer to the PDF document or feel free to contact us.

This catalog introduces a comprehensive overview of NITTO KOHKI’s MULTI CUPLA series. These products support automation and unmanned systems, and are suitable for tasks such as switching, connecting, disconnecting, transporting, and inspection. They also simplify piping operations required for mold changes, enhancing productivity and enabling flexible manufacturing systems (FMS). Featured Products: ■MAM Type: For multiple air port system ■MAM-B Type: For multiple air/water port system ■MAM-A Type: For multiple air/water port system ■Individual CUPLA for MAM-A / MAM-B Types (Air & Water) ■Plates for MAM-A / MAM-B Types (Air & Water) ...and more For more details, please refer to the PDF catalog or feel free to contact us.

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.

"HI CUPLA 60SM" is an excellent general-purpose coupling for connecting factory air supplies to pneumatic tool hoses. Key components are hardened to enhance strength. It is particularly resistant to wear and offers superior durability. The "NK CUPLA Hose with Full-Blow CUPLA" comes standard with a spring nut to prevent hose kinking and a polyurethane hose that excels in flexibility, durability, and wear resistance. The socket includes a "lock mechanism" to lock the sleeve and prevent accidental disconnection. Features: "HI CUPLA 60SM" ■ Enables direct piping between existing air main pipes (Rc3/4) and small diameter fittings ■ Mounting part size and shape: R3/4 (male thread) "NK CUPLA Hose" ■ Achieves low pressure loss and high flow rate. ■ Push-to-connect operation ■ When disconnected, exhausts residual pressure on the plug side, eliminating unpleasant noise and recoil. For more details, please refer to the PDF document or feel free to contact us.

MULTI CUPLA MALC-01 type can be used as a standalone socket. When the socket and plug are used together, the MALC-01, MALC-SP, and MALC-HSP types share a standardized 30 mm plate spacing, allowing them to be mounted on the same plate. With an axial eccentricity allowance of up to φ2 mm, precise centering during installation is not required. In addition to the MALC-01 type for low pressure, MALC-SP type for medium pressure and MALC-HSP type for high pressure are also available. Featured products: 1. MALC-01 Type (For low pressure) 2. MALC-SP Type (For medium pressure) 3. MALC-HSP Type (For high pressure) For more details, please refer to the PDF catalog or feel free to contact us.

AUTO CLAMP UNIT for MULTI CUPLA is designed to be mounted on the plates of multiple piping system to prevent the plates from separating due to fluid pressure. Features 1. Retains the reaction force of MULTI CUPLA 2. Equipped with an air-driven lock/unlock mechanism 3. Ready with mounting hole for proximity sensor The adapter for MULTI CUPLA MALC type can be directly connected to taper pipe thread without thread machining on the plate. Features 1. Simplifies machining of the plate 2. Reduces thickness of the plate For more details, please refer to the PDF catalog or feel free to contact us.

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.

This catalog features application examples of how our quick connect couplings and linear compressors can be utilized in a hydrogen-based society. Featured products: 1. H2-CZL CUPLA (for low pressure) 2. H2-HSU CUPLA (for medium pressure) 3. HHV CUPLA (for high pressure) 4. VC0101-A1 (AC driven diaphragm compressor and vacuum pump) *For more details, please refer to the PDF catalog or feel free to contact us.

CUPLA for temperature control equipment enables smooth connection and disconnection of cooling water piping. We have a lineup of CUPLA with a unique valve that minimizes air inclusion on connection and liquid spillage on disconnection, and also CUPLA with various end configurations, sizes, body materials, and many other functions and specifications. Features [COMPACT ZEROSPILL CUPLA] - For low pressure, high flow type, for coolant piping - Compact size saves space - Valve structure reduces air inclusion on connection and liquid spillage when disconnecting - Easy operation, push-to-connect function - Automatic shut-off valves prevent fluid from spilling out on disconnection [ZEROSPILL CUPLA] - For medium pressure, general applications - Valve structure reduces air inclusion on connection and liquid spillage when disconnecting - Easy operation, push-to-connect function - Automatic shut-off valves prevent fluid from spilling out on disconnection [HI FLOW CUPLA] Semi-Standard series - For low pressure, water and temperature control equipment piping - Compact size saves space - High flow characteristics for enhanced cooling effect. - Automatic shut-off valves prevent fluid from spilling out on disconnection For more details, please refer to the PDF catalog or feel free to contact us.

"PCV Pipe CUPLA" is a quick connect fluid coupling designed for copper pipe connections. No welding, machining, or tightening is required—pipes can be easily and directly connected. Its dual-seal structure on both the pipe end face and outer surface ensures excellent airtightness and vacuum resistance, supporting vacuum levels down to 0.13 Pa (0.001 mmHg) during connection. A wide range of sizes and sealing materials are available to meet the needs of manufacturing processes for air conditioners, refrigerators, and packaged systems. Features: - No welding, machining, or tightening required - Excellent airtightness and vacuum resistance - Size variations to match pipe outer diameters - Wide selection of mounting thread sizes Note: PCV400, PCV500, and PCV1000 are made-to-order products.

Model FMC-25-1F/FMC-25-2F are replaceable Flow Vane Type. Small diameter type has been newly added to the lineup! Small diameter type supports lower flow rate (0.6 to 6 L/min) compared to conventional models. Fluid flow from low flow rate can be visually checked with the rotating two-colored impeller. This products can be piped in tight space since molds are becoming smaller. As with the conventional models, Flow Vane ASSY, common to Rc 1/8 and Rc 1/4, can be replaced without removing it from the piping. We also offer FLOW METER model FM-03-B with a special valve designed for mold cooling lines, ensuring stable and accurate coolant flow rate. Features - Fluid flow from low flow rate (0.6 L/min) can be visually checked with the rotating two-colored impeller. - Flow Vane ASSY, common to Rc 1/8 and Rc 1/4, can be replaced without removing it from the piping. - The stopper prevents unintended removal of the plastic parts. - Installation and replacement is easy since one side of the screw part rotates freely to the left and right. *For more details, please refer to the PDF catalog or feel free to contact us.

FLOW MONITOR contributes to prevent molding defects by confirming coolant flow in mold cooling lines. Fluid flow from low flow rate (0.6 L/min) can be visually checked with the rotating two-colored impeller and Flow Vane ASSY can be replaced without removing it from the piping. Features - Fluid flow from low flow rate (0.6 L/min) can be visually checked with the rotating two-colored impeller. - Flow Vane ASSY can be replaced without removing it from the piping. *For more details, please refer to the PDF catalog or feel free to contact us.

The LARGE ZEROSPILL CUPLA LNZL type is a quick connect coupling designed for high flow rate while minimizing spillage during disconnection. Despite its large diameter, it features an easy-to-connect structure. Features: 1. Minimized spillage during disconnection 2. Equipped with a safety lock function 3. Push-to-connect function 4. High flow rate For more details, please refer to the PDF catalog or feel free to contact us.

This catalog introduces our quick connect couplings CUPLA, as a solution to enhance efficiency and stability in secondary battery manufacturing processes. CUPLA enhances productivity with its unique comfort and usability. Featured products: - LARGE ZEROSPILL CUPLA Designed to minimize liquid spillage, ideal for chemical transport and plant piping applications. - HYGIENIC CUPLA Easy to disassemble and clean, supporting hygiene management under HACCP standards. - SEMICON CUPLA SCAL Type Made with PTFE (Polytetrafluoroethylene), offering excellent chemical resistance. For more details, please refer to the PDF catalog or feel free to contact us.

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.