Gear pump units Product series MKx For oil and fluid grease For use in SKF MonoFlex single-line systems and centralized oil+air lubrication systems The units in the MKx product series are used in SKF MonoFlex single-line systems and include a pre-installed pressure regulating valve and pressure relief valve. The units in the MKx product series can be supplied with an optional pressure gauge for visual monitoring of pressure changes in the main line. Electrical pressure monitoring can be carried out by an integrated pressure switch. Fill level monitoring is also possible if required. The units are controlled externally via the machine control system or via an integrated control unit. Furthermore, units can be supplied with a pushbutton allowing interim lubrication to be activated manually at any time. All important functions are integrated into the lid. A plastic cap protects the electrical components from environmental influences such as dirt and dust. The modular structure of the units of the MKx product series makes them attractive to machine manufacturers as well as to end users and dealers.

Important information on product usage All products from SKF may be used only for their intended purpose as described in this brochure and in any instructions. If operating instructions are supplied with the products, they must be read and followed. Not all lubricants are suitable for use in centralized lubrication systems. SKF does offer an inspection service to test customer supplied lubricant to determine if it can be used in a centralized system. SKF lubrication systems or their components are not approved for use with gases, liquefied gases, pressurized gases in solution and fluids with...

Distinguishing features of the gear pump units Description of the models Gear pump unit MKU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Gear pump unit MKF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Gear pump unit MKL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 System layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Diagram of...

Description of the models Gear pump unit MKU Units from the MKU product series are suitable for pumping oil with a viscosity range of 20 to 1500 mm /s. The units are available in the following reservoir designs: • • • • 2 liter plastic reservoir 3 liter plastic reservoir 3 liter metal reservoir 6 liter plastic reservoir The units can be fitted with an optional pressure switch and/or fill level switch. Electrical connections are made using DIN built-in connectors or cable fittings. Units with reservoir capacity of 3 or 6 liters can be supplied with an optional integrated control unit. Gear pump...

SKF MonoFlex system structure Prelubrication, relubrication, and oil+air distributor system SKF MonoFlex single-line centralized lubrication systems with single-line distributors generally consist of a lubrication unit, the single-line distributors, and the lubrication lines. The pressure regulating valve and pressure relief valve required for the singleline centralized lubrication system’s operation are integrated into the lubrication unit. If pressure losses of greater than 10 bar are expected in the single-line centralized lubrication system, for example due to a wide expansion of the system...

SKF MonoFlex gear pump unit Diagram of the various combination options for the MKU product series Connector types Unit with 2 liter plastic reservoir Pressure gauge Cable fittings / plugs Pressure switch Unit with 3 liter plastic reservoir Fill level switch for min. oil level Gear pumps Delivery rate 0.1 l/min 0.5 l/min Unit with 3 liter metal reservoir Terminal strip Control units Unit with 6 liter plastic reservoir

Gear pump unit, product series MKU Configurator Delivery rate 1 = 0.1 l/min Lubricant reservoir, control 1 Lubricant reservoir Control A = no control, with terminal strip B = no control, with terminal strip and pushbutton If control C, D, or E is selected, monitoring C must be selected. If control E is selected, electrical connection 1 must be selected. For description of control units, see page 16–17. Selected code number for electrical connection Code number for delivery rate Selected code number for pressure gauge Selected code letter for monitoring Selected code letter for control Selected...

SKF MonoFlex gear pump unit Diagram of the various combination options for the MKF product series Connector types Unit with 2 liter plastic reservoir Pressure gauge Cable fittings / plugs Pressure switch Unit with 3 liter plastic reservoir Gear pumps Delivery rate 0.1 l/min Unit with 6 liter plastic reservoir Terminal strip Control units Fill level switch for min. fluid grease level

Gear pump unit, product series MKF Configurator Order code Lubricant reservoir, control 1 Lubricant reservoir Selected code number for electrical connection Selected code number for pressure gauge Selected code letter for monitoring Delivery rate Selected code letter for control F = fluid grease lubricant Selected code number for lubricant reservoir Code number for delivery rate Frequency Control Electrical connection 0 = 2 cable fittings 1 = 1 cable fitting; 1 rectangular connector 2 = 1 circular connector M12×1; 1 rectangular connector 4) 3 = 1 sealing plug; 1 cable fitting If control C, D,...

SKF MonoFlex gear pump unit Diagram of the various combination options for the MKL product series Connector type Unit with 3 liter plastic reservoir Pressure gauge Cable fittings Pressure switch Unit with 3 liter metal reservoir Gear pumps Delivery rate 0.1 l/min Unit with 6 liter plastic reservoir Fill level switch for min. oil level

Gear pump unit, product series MKL Configurator Order code Lubricant reservoir, control, monitoring, pressure gauge, electrical connection 2 Only possible with delivery rates 0.1 und 0.2 l/min Lubricant reservoir Code number for electrical connection Selected code number for pressure gauge Code letter for monitoring Delivery rate Code letter for control Code number for lubricant reservoir Code number for delivery rate F = control unit IG54-20-S4-I 1) C = monitoring with fill level switch (NC contact) and pressure switch 20 bar (NO contact) Pressure gauge 0 = without pressure gauge 1 = with pressure...