Quick connect coupling Multi Cupla MAS-4P, stainless steel - Nitto Kohki 349806634

On machines and test rigs, lines are disconnected and reconnected several times a day. The Multi Cupla series from Nitto Kohki covers that job with 120 versions in brass, steel or stainless steel, each available as a socket and as the matching plug.

• Bodies in brass, steel or stainless steel (SUS), so the coupling suits the environment at the installation point.
• Seals in NBR or FKM, which lets the material pairing be matched to the medium being carried.
• Every socket has a plug of the same size, for example MALC-4S and MALC-4P, which keeps spare part stocking simple.
• Sizes 01, 1, 2, 3, 4, 6 and 8 within the same model line, so different port sizes stay inside one coupling system.
• 120 articles in a single series, from the individual coupling to the MAM, MALC, MALS, MALT, MAS and MAT versions.

Technical data from the manufacturer catalogue

Dimensions

Dimensions in millimetres. Values in brackets apply in the connected condition.

Legend: T = thread or barb size

Models in this series MULTI CUPLA MAS Type / MAT Type

Every model of the series as printed in the manufacturer catalogue. The row of the article offered here is highlighted.

Operating principle

• Effective for automated systems that connect/disconnect multiple lines simultaneously using hydraulic or pneumatic cylinders.
• Automatic shut-off valves in both sockets and plugs ensure no outflow of fluid on disconnection.
• Body materials other than stainless steel are available, which can be ordered with or without valves (made-to-order products).
• Snap ring and screw thread-in types to mount on the base plate are standardized.
• MAS type can accept axial eccentricity between socket and plug. The allowance of eccentricity is within the radius range of 0.3 mm.
• Connects multiple lines simultaneously with a single operation for different fluids and sizes.

Series comparison

Choose MAS Type or MAT Type when the multi-port plate has to work at 7.0 MPa {71 kgf/cm2} with two-way shut-off: MULTI CUPLA MAM Type is limited to 0.7 MPa {7 kgf/cm2} and shuts off on one side only, and MAM-A Type and MAM-B Type are two-way shut-off but only up to 1.0 MPa {10 kgf/cm2}. Above this pressure range, MULTI CUPLA MALC Type is the choice, since its MALC-HSP Type covers 21.0 to 25.0 MPa {214 to 255 kgf/cm2}. Within the series, take the MAS type when axial eccentricity within a radius of 0.3 mm has to be absorbed, and the MAT type when the coupling is screwed into the base plate with a metric thread.

Body and seal materials

Applications

• Tool and fixture changes where lines are disconnected on a regular basis
• Test and measuring benches with changing setups
• Plant modules that are uncoupled quickly for service and rebuilds
• Installation points in corrosive surroundings, which is what the stainless steel (SUS) versions are intended for

Safety and application notes

• CUPLA connection or disconnection with fluid under dynamic pressure cannot be made.
• Maintain the connection with the minimum load or more, but not more than the maximum acceptable load.
• Before use, please be sure to read "Safety Guide" described at the end of this book and "Instruction Sheet" that comes with the products.

All technical data on this page is taken from the Nitto Kohki general catalogue Quick Connect Couplings C01en-b, page 131. The complete catalogue is available for download on this page.