NITTO KOHKI TSP Cupla 4TSF Male Thread Quick Coupler R 1/2" Two-Way Open

A distinctive highlight of the TSP Cupla series is its "two-way open valveless structure" (Valveless Structure / Open Type), which features no spring-loaded valve mechanism inside either the socket or plug. This design is engineered solely for "maximum flow rate and minimum pressure drop" (Maximum Flow & Minimum Pressure Drop). It is ideal for industrial pneumatics, main air supply headers, or high-viscosity fluids where standard valved systems typically clog or restrict airflow.

Valveless High-Flow Structure: An open internal design with no blocking valve allows air and fluids to pass through the full 1/2-inch cross-section, delivering massive flow rates and full air power.

Hardened Steel Body: Made from hardened carbon steel that resists tensile stresses and impacts from large air hoses, preventing scratches from dragging across factory floors.

Low Pressure Drop: Excellently prevents pressure drops in the piping system, allowing end-of-line tools to operate at peak performance.

Smooth Fluid Transfer: In addition to standard air systems, the open structure is also suitable for high-viscosity fluids such as grease, lubricating oils, or chemicals that are non-corrosive to steel.

Japan Precision Quality: Manufactured under Japanese industrial standards; features a tight, precise locking mechanism that prevents air leaks at the connection point.

Main Air Line: Used for installation at main air supply points of workstations to deliver large air volumes to machinery and pneumatic equipment.

Plastic injection and molding industry: Commonly used for connecting cooling water lines, hot water lines, or low-pressure hydraulic oil lines feeding into plastic injection molds.

Viscous fluid transfer systems: Ideal for connecting lines carrying high-viscosity fluids, such as engine oil lines, system flushing lines, or grease filling lines in production lines.

Demanding job sites: Ideal for bus and truck repair garages, construction sites, and heavy industrial plants where pneumatic tools demand exceptionally high air consumption.

brand: NITTO KOHKI (Made in Japan)

Series: TSP Cupla (4TSF)

Product type: Quick-connect pneumatic female coupler (Socket)

Coupler size: 1/2 inch (Series 4 body size)

Rear thread type: Male thread, standard R 1/2 (PT)

Body material: Industrial grade carbon steel

Internal seal material: Nitrile rubber (NBR)

Valve system: Two-way open without valve (Valveless / Open Type)

Working pressure: 5.0 MPa (50 bar / 725 PSI)

Maximum pressure resistance: 7.5 MPa (75 bar / 1,088 PSI)

Operating temperature range: -20 to +80 degrees Celsius

Overall width: 29 mm

Overall length: 46 mm

Product weight: 0.100 kg