NITTO KOHKI 400SM SUS NBR Heavy-Duty Stainless Steel Quick Coupler Socket

NITTO KOHKI 400SM SUS NBR Heavy-Duty Stainless Steel Quick Coupler Socket
The NITTO KOHKI 400SM (Hi-Cupla Series) is a premium-quality pneumatic quick coupler from Japan. Made of special-grade stainless steel (Stainless Steel SUS) paired with an NBR (Nitrile Rubber) seal, its structure provides high corrosion resistance, rust prevention, and excellent durability against dilute chemicals. Designed with a female thread connection to pair efficiently with male plugs in air and fluid line systems. Featuring a built-in automatic shut-off valve mechanism, it helps prevent air backflow and minimizes system pressure drop. Ideal for heavy-duty environments or industrial applications that demand high cleanliness and safety.
Features
High Corrosion Resistance: The body is made of genuine stainless steel, providing exceptional resistance to rust and corrosion caused by moisture or chemicals.
Quick & Easy Connection: The smart quick-connect system allows for fast and convenient one-handed connection and disconnection, enhancing work agility.
Excellent Leak Prevention: Comes with a high-quality NBR rubber seal that offers excellent resistance to friction, oil, and pressure, reliably preventing air and fluid leaks.
High Pressure Performance: The body and threads are precision machined to reliably handle high pressure in pneumatic systems without swelling or easily detaching.
One-Way Automatic Shut-off Valve: Features a built-in automatic shut-off valve in the socket; air stops flowing immediately when the plug is disconnected, increasing operator safety.   
Applications
Pneumatic and clean air systems: Ideal for connecting air hoses to air compressors, pneumatic equipment, and all types of air tools in industrial plants.
Chemical and laboratory industries: Used in environments with dilute chemicals or areas requiring high cleanliness, as stainless steel does not release contaminants.
Food and beverage industries: Applicable in non-direct food contact production lines that require rust-proof and easy-to-clean materials.
Outdoor applications and maintenance workshops: Especially suitable for high-humidity jobsites, car care centers, or coastal applications where regular steel couplers are prone to rusting.   
Specifications