NITTO KOHKI SUS-4TSF Stainless Steel Female Thread Male Coupler Plug

A key highlight of the TSP Cupla series is its valveless, straight-through internal design, which eliminates valve or spring mechanisms obstructing the flow of fluids, air, or gas. Once connected, fluids can pass through at 100% full capacity with zero flow resistance and no turbulence or pressure drop—making it ideal for industrial plants that demand precise flow rate control.

Superior High Flow Rate Design: Valveless, straight-through construction discharges air, water, or high-viscosity liquids at maximum efficiency without pressure drops inside the coupler system.

Genuine Engineering-Grade SUS304 Stainless Steel Material: Extra thick, resistant to corrosion, industrial chemicals, and solvents, and rust-free throughout its service life.

Standard Male Thread Connection: 1/2-inch male thread (R 1/2) precision-machined for deep, sharp thread dimensions, threading securely and tightly into other female-threaded fittings.

Equipped with Fluoro Rubber O-Ring Seal (FKM / Viton Seal): Special synthetic rubber seal resistant to chemicals and high-heat conditions, providing maximum dependable sealing performance with a wide temperature range from -20 degrees Celsius to +180 degrees Celsius.

Smooth Flow, Easy Maintenance: With no internal valve mechanism or complex spring parts, sediment and contaminants do not accumulate, allowing piping lines to be flushed and cleaned easily and thoroughly.

Machine Cooling Water Systems: Suitable for connecting to chilled water lines, mold cooling lines for plastic injection molding machines, or machinery cooling systems requiring a steady flow rate.

Chemical, Petrochemical, and Solvent Plants: Used at connection points for highly corrosive oil, chemical, or cleaning solution supply lines.

Pharmaceutical, Food, and Beverage Industries: The straight-through stainless steel design meets the requirements of piping systems that demand high sanitary standards, allowing easy cleaning of residues.

High-Volume Pneumatic Systems: Ideal for factory main air supply points requiring consistent air pressure and huge air volume (CFM) to supply large machinery.

Manufacturer: NITTO KOHKI (Manufactured and imported from Japan)

Product Series: TSP Cupla (SKU SUS-4TSF)

Coupler Type: Socket

Body Size: 1/2 inch (1/2")

Thread Size & Type: Male thread, size 1/2 inch (R 1/2 per BSPT standard)

Body Material: Stainless Steel (SUS304)

Seal Material: Fluoro rubber (FKM / Fluororubber)

Working Pressure: 4.5 MPa / 45 bar / 653 PSI

Proof Pressure: 6.5 MPa / 65 bar / 942 PSI

Operating Temperature Range: -20°C to +180°C

Valve Mechanism: Valveless (Straight Through / two-way open type)

Applicable Fluids: Air, gas, water, hot water, hydraulic oil, and various organic/inorganic chemicals