The RMI series from Stäubli is a low-cost alternative to the Staubli SPT series of dry disconnect fittings. Connecting a socket to a plug automatically opens the internal valves. Disconnect them by pulling back on the socket collar, and both ends automatically close tight to prevent leakage.
The brass bodies (steel on the RMI16 series) feature stainless steel locking balls, stainless steel release sleeves, and fluorocarbon seals for compatibility with most automotive oils and coolants. Maximum operating temperature of 300° F allows working pressures to 230 psi (pressures below 145 psi can increase the operating temperature to 390° F).
Three series of RMI connectors are available. Each series will only mate to connectors in that same series, but some interchange of AN fitting sizes is also possible. For example, an RMI09 socket with a 6AN fitting can mate to an RMI09 plug with an 8AN fitting.
Sockets are sold individually. Plugs are sold separately.
|Staubli RMI Series Flow Rates at 5 psi|
|RMI Series ||AN Fitting Sizes||Flow Rate* |
Gallons per Minute
|RMI09 ||6AN, 8AN||4.5 gpm|
|RMI12 ||10AN, 12AN ||10 gpm|
|RMI16 ||12AN, 16AN ||18 gpm|
*Using standardized oil with a viscosity of 13.4 cSt at 104° F (for comparison, gasoline has a viscosity between 0.4 and 0.8 at 104° F and Red Line 5W30 oil has a viscosity of 10.6 cSt at 212° F).