Multi-Couplings and Docking Systems
Couplings and Disconnects
Multi-couplings gather several circuits into a single interface: supply and return, several cold plates, or cooling and control lines are mated in one movement. That saves handling steps and rules out cross-connection, because the layout of the nipples fixes which line goes where. In a docking system the coupling plate is fixed in the frame and the mating plate arrives with the module; any misalignment between the two is taken up by the mount. The category holds 88 items from Nitto Kohki.
The range covers the Multi Cupla series MAS, MAT, MAM and MALC in body sizes from 1 to 16. Versions carrying the FL suffix, such as MALC-3S-FL and MALC-6P-FL, are intended for mounting in a plate. Most of the range is stainless steel; a few types such as MAM-1TP-8 and MAM-1TP-16 are brass. For a closed water-glycol circuit the stainless steel versions are the right choice.
Multi Cupla MAS, MAT, MAM and MALC
| Criterion | MAS | MAT | MAM | MALC |
|---|---|---|---|---|
| Sizes listed | MAS-3P, MAS-4S, MAS-8P | MAT-3P, MAT-4S, MAT-6S | MAM-1TP-8, MAM-1TP-16 | MALC-1S, MALC-1P, MALC-3S, MALC-6P-FL, MALC-8P |
| Material | stainless steel | stainless steel | brass | stainless steel |
| Plate version | not listed under this suffix | not listed under this suffix | not listed | yes, types with FL suffix |
| Circuits per interface | several, depending on layout | several, depending on layout | several, depending on layout | several, depending on layout |
| Use in an IT circuit | unrestricted | unrestricted | only in an all-brass circuit | unrestricted |
| Typical location | rack and cabinet docking | module and equipment connection | ports in brass circuits | fixed interface with coupling plate |
- Rack and cabinet docking where supply and return are separated together
- Cooling modules and drawers withdrawn completely for servicing
- Connecting several cold plates of one node through a common interface
- Test rigs and production cells with a recurring mating cycle
- Installations where confusing supply and return must be ruled out by design
- Water-glycol circuits with stainless steel pipework




















