NITTO KOHKI 20SH SUS NBR Stainless Steel Hose Quick Connect Socket

Inside the female socket is a single shut-off directional control valve system; the valve spring instantly seals the contact face to block and contain main-line air from leaking as soon as the locking sleeve is pulled to disconnect the male plug. This completely prevents dangers from air bursts and whipping hoses. The body features precision-machined contact surfaces for a tight, secure ball lock without leakage, supporting the "We Keep the World Working" vision of global distributors like Grainger to keep production lines running smoothly without disruption.

High Wear & Chemical Resistance (SUS Body): Made of genuine stainless steel, highly resistant to physical wear, 100% rust-proof even when working in damp environments, chemicals, or steam.

Single Shut-Off Spring Valve: Automatic single shut-off valve mechanism on the socket side instantly seals air in the system when disconnecting the sleeve. Convenient, safe, with no need to shut off the main air compressor valve.

Precision Hose Barb (SH Type): Hose barb end precision-machined with 3 sharp ridges, designed to insert into 1/4-inch air hoses for maximum grip when secured with a hose clamp.

Premium NBR O-Ring Seal: Heat-resistant nitrile synthetic rubber seal, highly resistant to oils, lubricants, compressor oil mist, and surge pressure, preventing air leakage from all directions.

Smooth Sleeve Mechanism: Smooth spring-loaded sliding sleeve locks steel balls securely and disconnects easily even when wearing work gloves.

Ideal for branch air lines and air hoses in clean industries such as food processing plants, pharmaceutical and medical industries, scientific laboratories, and chemical plants.

Connecting 1/4-inch air hoses to various pneumatic tools such as air screwdrivers, spray guns, tire inflators, or pneumatic rivet guns on assembly lines.

Low-pressure industrial fluid/water transfer applications requiring quick connection and disconnection without leaving rust stains in the water system.

Used in automotive repair shops, car care centers, or high-humidity outdoor job sites where standard steel couplers easily degrade from rust and wear.

Brand: NITTO KOHKI

Country of Origin: Japan (Made in Japan)

Series: Hi Cupla (Standard Industrial Pneumatic Group)

Model: 20SH SUS (Socket Female / Hose Barb Connection)

Body Material: Stainless Steel (SUS)

End Connection: Hose Barb

Compatible Hose Size: 1/4 inch (or 2 hun air hose)

Working Pressure: 1.5 MPa (15 kgf/cm²)

Proof Pressure: 2.0 MPa (20 kgf/cm²)

Standard Internal Seal Material: NBR (Nitrile Rubber) / Operating Temperature Range -20°C to +80°C