Quick connect coupling Multi Cupla MAM-A-3S12, brass - Nitto Kohki 349825545

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

Models in this series MULTI CUPLA MAM-A Type

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

Operating principle

• Handles several ports at once.
• Simple manual lever action completes easy connection/disconnection.
• Two-stage lever operation prevents CUPLA from accidental dropping due to sudden detachment.
• Comes with lock mechanism to prevent accidental disconnection.
• Large flow equivalent to that of SP CUPLA Type A.
• Two kinds of plates are available for each size.
• Automatic shut-off valves in both socket and plug prevent fluid spill out on disconnection.
• Self-aligned valve design provides safety sealing of individual socket or plug when disconnected.

Series comparison

MAM-A Type suits air and water circuits up to 1.0 MPa {10 kgf/cm2} that are changed over by hand and need both sides to close: MAM Type is limited to 0.7 MPa {7 kgf/cm2} and shuts off on the socket side only. Above 1.0 MPa the choice moves to MAS Type / MAT Type at 7.0 MPa {71 kgf/cm2} or to MALC-HSP Type at 21.0 to 25.0 MPa {214 to 255 kgf/cm2}. Against MAM-B Type, which carries the same 1.0 MPa rating and the same two-way shut-off, decide by plate and port layout, noting that MAM-A-ZEL Type is not offered on MAM-B plates in size Rc 1/8.

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

• Before use, please be sure to read the Safety Guide described at the end of the catalogue and the Instruction Sheet that comes with the products.
• MAM-A-ZEL Type: do not use in an environment where there is impulse pressure.
• In order to balance the force of system pressure, place each CUPLA symmetrically from the lock unit centre.

All technical data on this page is taken from the Nitto Kohki general catalogue Quick Connect Couplings C01en-b, page 119. The complete catalogue is available for download on this page.