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The socket receives the plug of the same size and holds it in the connection. It usually sits on the fixed side of the installation, for instance at the machine or manifold port. Sockets are likewise offered in brass, steel and stainless steel, with an NBR or FKM seal depending on the version. Model MAM-B-2S8, brass, Seal material FKM.

Quick connect coupling Multi Cupla MAM-B-2S8, brass - Nitto Kohki 349826711

NITTO KOHKI Original product
Net price (excl. VAT)
€1,429.66
Item NKH-349826711
Manufacturer no. 349826711
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Brand new Specialist dealer since 2009 Original product Worldwide shipping
Product data
Manufacturer no.349826711
ConditionNew
Article
NKH-349826711

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

SeriesMULTI CUPLA MAM-B Type
ModelMAM-B-2S8
Coupling partsocket plate
End connectionPlate with CUPLA, 8 ports, 1/4 inch
Port sizeR 1/4
Body materialCUPLA: Brass (Nickel plated), Plate: Aluminum alloy, Locking unit: Steel (Nickel plated)
Seal materialFKM
Max working pressure1.0 MPa {10 kgf/cm2}
Working temperatureFluoro rubber (FKM): -20 °C to +180 °C
Valve structureTwo-way shut-off
Applicable fluidsAir, Water
Vacuum service1.3x10-1 Pa {1x10-3 mmHg}. Socket only: -, Plug only: -, When connected: Operational.
Size range1/8 inch (8 and 12 port plates), 1/4 inch (6 and 8 port plates)
Number of portsMAM-B-1P8 / MAM-B-1S8: 8; MAM-B-1P12 / MAM-B-1S12: 12; MAM-B-2P6 / MAM-B-2S6: 6; MAM-B-2P8 / MAM-B-2S8: 8
Pressure units1.0 MPa / 10 kgf/cm2 / 10 bar / 145 PSI
Ambient temperature range0 deg C to +60 deg C
Maximum tightening torque1/8 inch: 5 Nm {51 kgf cm}; 1/4 inch: 9 Nm {92 kgf cm}
Admixture of air on connection per port1SP type 0.6 mL, 2SP type 1.1 mL. May vary depending upon the usage conditions.
Volume of spillage on disconnection per port1SP type 0.4 mL, 2SP type 0.8 mL. May vary depending upon the usage conditions.
Mass0.050 kg
Part number349826711
Catalogue pageC01en-b, 115

Dimensions

Plug dimension sketchPlug dimension sketchLHSchematic view of the dimension letters, not to scale.
How the dimension letters in the table map onto the part.
Modelødrawing callouts (mm)
MAM-B-2S8(111), (8.5), (22), 73, (5), (18.5), (28), (28), (51.5), (51.5), (30.8), (114), (3.2), 15, (52), 136, (86), (62), (65 deg), (R114), (10 deg)

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

Models in this series MULTI CUPLA MAM-B Type

ModelApplicationAssembly (g)ødrawing callouts (mm)
MAM-B-2S6R 1/41280(121), (22), 83, (5), (32), (28), (28), (30.8), (114), (3.2), 15, (52), 90, (86), (62), (65 deg), (R114), (10 deg), (When lever is in lock position 62), (When lever is in lock position 63)
MAM-B-2S8R 1/41550(111), (8.5), (22), 73, (5), (18.5), (28), (28), (51.5), (51.5), (30.8), (114), (3.2), 15, (52), 136, (86), (62), (65 deg), (R114), (10 deg)

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

Operating principle

Two-way shut-offTwo-way shut-offshut-off valve in socketshut-off valve in plugSocketPlugFlow direction: socket to plug
Both halves close on disconnection, so the line contents are retained on both sides.
  • 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

SeriesMax working pressureSize rangeValve structureApplicable fluids
MULTI CUPLA MALC TypeMALC-01 Type: 1.0 MPa {10 kgf/cm2}; MALC-SP Type: 1.5 to 7.0MALC-01 Type: one size; MALC-SP Type: sizes 1, 2, 3, 4, 6, 8 and 12; MALC-HSP Type: sizes 1, 2, 3, 4, 6 and 8MALC-01 Type: One-way shut-off; MALC-SP Type: Two-way shut-off (Spill Reduction); MALC-HSP Type: Two-way shut-off (Spill Reduction)Air, Water, Hydraulic oil
MULTI CUPLA MAM Type7 barRc 1/8One-way shut-off (valve on socket side only)Air
MULTI CUPLA MAM-B Type10 bar1/8 inch (8 and 12 port plates), 1/4 inch (6 and 8 port plates)Two-way shut-offAir, Water
MULTI CUPLA MAM-A Type10 bar1/4 inch to 1/2 inch for MAM-A Type plates with CUPLA; 1/8 inch to 1/2 inch for individual CUPLA of MAM-A-SP Type; 1/4 inch to 1/2 inch for individual CUPLA of MAM-A-ZEL TypeTwo-way shut-offAir, Water
MULTI CUPLA MAS Type / MAT Type70 bar1/4 inch, 3/8 inch, 1/2 inch, 3/4 inch, 1 inch (MAS type thread); M20, M24, M30, M39, M45 (MAT type thread)Two-way shut-offAir, Water, Hydraulic oil
MULTI CUPLA MAS Type / MAT Type and MALC-01 Type70 barMAS type 1/4 inch, 3/8 inch, 1/2 inch, 3/4 inch, 1 inch (R and Rc threads); MAT type M20, M24, M30, M39, M45 thread screw mount; MALC-01 type M14x1 thread screw mount or flangeTwo-way shut-off for MAS type and MAT type; One-way shut-off for MALC-01 typeAir, Water, Hydraulic oil

Pick the MULTI CUPLA MAM-B Type when air or water at 1.0 MPa {10 kgf/cm2} has to be changed over on 6 to 12 ports in one operation and both halves must seal on disconnection, since the two-stage manual lever and the lock mechanism deliver that without any external drive. The MAM Type is one-way shut-off with a valve on the socket side only and is rated 0.7 MPa {7 kgf/cm2}, while the MAM-A Type shares the 1.0 MPa {10 kgf/cm2} rating and two-way shut-off. For higher pressures, look at the MAS Type and MAT Type at 7.0 MPa {71 kgf/cm2} or the MALC-HSP Type at 21.0 to 25.0 MPa {214 to 255 kgf/cm2}.

Body and seal materials

Body material
CUPLA: Brass (Nickel plated)
Plate: Aluminum alloy
Locking unit: Steel (Nickel plated)
Seal materialMarkWorking temperatureRemarks
Fluoro rubber (FKM)--20 °C to +180 °CStandard material

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 "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 115. The complete catalogue is available for download on this page.

More Information
Manufacturer Nr. 349826711
Manufacturer Nitto Kohki
Weight 0.050000
GPSR manufacturer information Nitto Kohki Europe GmbH, Gottlieb-Daimler-Str. 10, DE-71144 Steinenbronn, www.nitto-kohki.eu
Article authenticity Original product
Condition of article New
Anschlussgewinde R 1/4
Medientemperatur [°C] -20 ... +180 °C
Material Brass
Betriebsdruck max [bar] 10.000000