Quick couplings

Cupla Hose w. Full Blow Cupla

The Nitto Kohki Cupla Hose with Full Blow Cupla is a pre-assembled quick-coupling hose system that delivers coupling and hose as a single unit. The range covers three variants: NKU-605PW with a 5-m hose, NKU-610PW with a 10-m hose, and NKU-810PW with a 10-m hose in a larger nominal bore. The Full Blow function provides full compressed-air flow even with the plug only partially engaged, allowing workpieces to be blown off without fully coupling the fitting.

3 items
1 manufacturer
Net prices plus VAT

Buying guide

How to choose Cupla Hose w. Full Blow Cupla

What matters when choosing: properties, comparison and typical applications.

Technical features

⚡ Full Blow function - Full flow with plug only partially engaged, for blowing-off and cleaning applications

⚙ Hose lengths 5 and 10 m - NKU-605PW (5 m) and NKU-610PW / NKU-810PW (10 m) as pre-assembled units

↕ Two nominal bores - NKU-6xx (smaller bore) and NKU-8xx (larger bore) for different flow rates

✓ Ready to use - Coupling and hose factory-assembled, immediately operational without installation work

Type overview

Type	Hose length	Nominal bore	Function
NKU-605PW	5 m	6 (small)	Full Blow plug with hose
NKU-610PW	10 m	6 (small)	Full Blow plug with hose
NKU-810PW	10 m	8 (large)	Full Blow plug with hose

Typical applications

Typical applications: Blowing and cleaning of workpieces, machines, and cavities in metalworking, flexible compressed-air supply at assembly stations and machine islands, maintenance and servicing with readily available compressed air, and cleaning stations in production where a long hose with on-demand Full Blow function is required.

FAQ

Frequently asked questions about Cupla Hose w. Full Blow Cupla

What are Cupla Hose with Full Blow Cupla pneumatic quick couplings and their primary industrial applications?

Cupla Hose with Full Blow Cupla are pneumatic quick-connect hose assemblies from Nitto Kohki featuring integrated full-blow discharge functionality that automatically expels residual compressed air when disconnected. These assemblies combine flexible pneumatic hose with quick-disconnect couplings in a single unit, eliminating the need for separate hose installation and reducing connection points. Primary applications include automated manufacturing lines, pneumatic tool operations, air blow guns for cleaning applications, and temporary pneumatic connections where rapid setup and teardown are required. Industries utilizing these assemblies include automotive assembly, electronics manufacturing, food processing, and general industrial automation where compressed air systems require frequent reconfiguration.

What are the key technical selection criteria for Nitto Kohki Cupla Hose assemblies?

Selection of Nitto Kohki Cupla Hose assemblies requires evaluation of coupling size designation, hose length, and pressure rating compatibility with the pneumatic system. The NKU series offers different port sizes including 6mm and 8mm configurations as indicated by model numbers NKU-605PW, NKU-610PW, and NKU-810PW variants. Standard hose lengths available include 5-meter and 10-meter options to accommodate workspace layout requirements. Operating pressure capability typically ranges from 0 to 1.0 MPa for standard pneumatic applications, while temperature range spans -5°C to +60°C for general industrial environments. Media compatibility centers on compressed air applications with proper filtration to prevent contamination of the quick-coupling mechanisms.

Which international standards and certifications apply to Nitto Kohki pneumatic quick couplings?

Nitto Kohki pneumatic quick couplings comply with ISO 4414 standards for pneumatic fluid power systems and general requirements for compressed air installations. The couplings meet JIS B 8390 Japanese Industrial Standards for pneumatic quick-connect fittings, ensuring compatibility with international pneumatic systems. Manufacturing processes follow ISO 9001 quality management standards for consistent production quality and traceability. For European markets, the products conform to EN ISO 12100 machine safety standards when integrated into pneumatic control systems. The Full Blow discharge mechanism aligns with workplace safety requirements by preventing accidental pressurized air release, supporting compliance with local occupational health and safety regulations across different industrial sectors.

What are the differences between NKU-605PW, NKU-610PW, and NKU-810PW Cupla Hose variants?

The primary differences between Nitto Kohki Cupla Hose variants lie in coupling port size and hose length configurations to match specific application requirements. NKU-605PW features a 6mm coupling diameter with 5-meter hose length, suitable for compact workstations and shorter pneumatic runs. NKU-610PW utilizes the same 6mm coupling size but extends to 10-meter hose length for applications requiring greater reach from the air supply point. NKU-810PW incorporates an 8mm coupling diameter with 10-meter hose, providing higher air flow capacity for pneumatic tools requiring increased air volume. All variants feature identical Full Blow Cupla discharge mechanisms and similar pressure ratings, with selection based on workspace geometry and air flow requirements rather than functional capabilities.

What installation requirements and system compatibility considerations apply to Full Blow Cupla assemblies?

Full Blow Cupla assemblies require compressed air systems operating within 0.1 to 1.0 MPa pressure range with proper air preparation including filtration to 40 microns and moisture removal to prevent internal component damage. Installation demands adequate workspace clearance for hose routing and coupling engagement, typically requiring 150mm minimum bend radius to prevent hose kinking. The assemblies connect directly to standard pneumatic outlets without additional adapters, featuring universal coupling compatibility with most industrial compressed air systems. System integration requires consideration of air consumption during full-blow discharge cycles, typically consuming 0.1 to 0.3 cubic meters of compressed air per disconnect operation. Proper installation includes securing hose runs to prevent wear from dragging and ensuring coupling protection from contamination when not in use.

What safety ratings and operating parameters apply to Nitto Kohki Full Blow Cupla systems?

Nitto Kohki Full Blow Cupla systems operate safely within temperature ranges of -5°C to +60°C for standard industrial environments, with maximum working pressure ratings of 1.0 MPa for compressed air applications. The integrated safety discharge mechanism automatically expels residual pressure upon disconnection, reducing operator exposure to high-pressure air release. Coupling materials typically achieve IP54 protection against dust ingress and water splash when properly maintained, suitable for general manufacturing environments but requiring protection in wash-down applications. The systems incorporate fail-safe design principles where coupling separation cannot occur under full system pressure without controlled discharge through the blow-off mechanism. Operating safety depends on regular inspection of hose integrity and coupling seal condition to prevent unexpected pressure loss during operation.

What maintenance schedule and service life expectations apply to Cupla Hose with Full Blow assemblies?

Cupla Hose with Full Blow assemblies require monthly visual inspection of hose condition for cuts, abrasion, or coupling looseness, with quarterly functional testing of the blow-off discharge mechanism to ensure proper operation. Service life typically extends 2 to 3 years under normal industrial conditions with proper air filtration and protection from mechanical damage. Critical maintenance points include annual replacement of internal sealing elements within the quick-coupling mechanism and immediate replacement of hoses showing surface cracking or dimensional changes. The blow-off valve mechanism requires annual calibration testing to verify discharge pressure settings remain within specification. Preventive maintenance includes protecting couplings from contamination during storage, maintaining proper air system filtration to 40 microns, and avoiding hose bend radius below manufacturer specifications to prevent premature failure.