Multi Cupla MAS/MAT

Nitto Kohki Multi Cupla MAS/MAT quick connect couplings are precision-engineered pneumatic and hydraulic connection systems designed for rapid assembly and disassembly of fluid power circuits. These multi-coupling solutions feature stainless steel (SUS) construction with FKM sealing elements, making them suitable for manufacturing automation, automotive production lines, packaging machinery, and heavy industrial equipment applications. The MAS series provides plug connections while MAT series offers socket connections, both engineered to minimize system downtime during maintenance operations. Their robust design handles demanding industrial environments where reliable fluid power transmission is critical for operational efficiency.

Multi Cupla MAS/MAT coupling selection requires evaluating port size compatibility ranging from 3mm to 8mm nominal diameter (MAS-3P through MAS-8P variants), operating pressure requirements, and media compatibility with the FKM seal material. The stainless steel construction provides corrosion resistance for aggressive media applications, while the quick-connect mechanism ensures secure engagement with minimal insertion force. Port configuration determines whether MAS (plug) or MAT (socket) variants are required for specific system architectures. Flow coefficient and pressure drop characteristics must align with system performance requirements, particularly in high-cycle automation applications where connection integrity directly impacts production efficiency.

Nitto Kohki Multi Cupla MAS/MAT couplings comply with ISO 4414 pneumatic system safety requirements and ISO 5598 fluid power terminology standards, ensuring consistent performance in industrial applications. The stainless steel construction meets material specifications under ISO 6708 for pneumatic system components, while FKM seal compatibility aligns with ISO 1629 elastomer identification standards. These couplings are designed to integrate with systems conforming to ISO 8573 compressed air quality classifications, particularly relevant for food processing and pharmaceutical applications. The quick-connect mechanism follows ISO 7241 series specifications for hydraulic quick-action couplings, ensuring interoperability across different manufacturer systems.

MAS variants function as plug connections (male) while MAT variants serve as socket connections (female) in the Multi Cupla quick-connect system, with both featuring identical stainless steel construction and FKM sealing elements. The numerical designation indicates nominal port diameter, with MAS-3P/MAT-3P representing 3mm connections scaling up to MAS-8P/MAT-8P for 8mm applications. The P and S suffixes differentiate between specific port configurations and thread types, allowing precise matching to existing pneumatic and hydraulic system requirements. Both series maintain identical pressure ratings and flow characteristics, with selection determined by system architecture and whether the coupling serves as supply-side (MAS) or equipment-side (MAT) connection points.

Multi Cupla MAS/MAT couplings require straight-thread installation with appropriate thread sealant or O-ring groove sealing depending on port configuration, ensuring leak-tight connections in pneumatic and hydraulic systems. The quick-connect mechanism operates through push-to-connect engagement with audible confirmation of proper coupling, while disconnection requires sleeve retraction under zero system pressure. System compatibility extends to compressed air, hydraulic oil, and compatible industrial fluids that do not degrade FKM seal material at operating temperatures. Installation clearance must accommodate coupling length and disconnection sleeve operation, typically requiring 25-30mm radial access for manual operation in maintenance scenarios.

Nitto Kohki Multi Cupla MAS/MAT couplings operate reliably at working pressures up to 1.0 MPa (10 bar) for pneumatic applications and higher pressures for hydraulic service, depending on port size and system configuration. The FKM sealing elements maintain integrity across temperature ranges from -20°C to +200°C, making these couplings suitable for both standard industrial environments and elevated temperature applications. The stainless steel body construction provides corrosion resistance equivalent to grade 316 stainless steel, ensuring long-term performance in aggressive industrial atmospheres. Safety factor calculations incorporate burst pressure ratings typically 4:1 above working pressure, conforming to industrial safety standards for pressurized coupling systems.

Multi Cupla MAS/MAT couplings require quarterly visual inspection for seal integrity and coupling sleeve operation, with annual replacement of FKM sealing elements in high-cycle applications exceeding 10,000 connect/disconnect operations per year. Service life typically ranges from 50,000 to 100,000 coupling cycles depending on operating pressure, media cleanliness, and environmental conditions, with stainless steel bodies providing indefinite service when properly maintained. Preventive maintenance includes verification of proper engagement audible confirmation, sleeve spring tension, and absence of media leakage during system pressure testing. Critical applications should maintain spare coupling sets to minimize downtime, as individual seal replacement requires system depressurization and coupling removal from service.