Metering Pump OBL MB35 are mechanical diaphragm pumps with spring return mechanism, eccentric shaft and thrust ring. They combine the working characteristics of a plunger pump with the sealing advantages of a diaphragm pump.
Thanks to the quality and simple design of diaphragm, these pumps are easy handling.

General Features Of Metering Pump OBL MB35 :
- Diaphragm, economic, robust, compact metering pump.
- The mechanical diaphragm works, both giving the swept volume, acting basically as plunger, and as separator between crank gear and the handled fluid.
- Easy and minimum maintenance required, thanks to the reduced number of components.
- The OBL’S unique ( patented ) mechanical diaphragm design ensures linearity between flow rate and percentage of stroke. The flow rate is virtually uneffected by the working pressure variations.
- leak-free pump, due to OBL’S stress proof diaphragm.
- High working safety :
– No external moving parts
– Leak-free operations. - Max suction lift 1,5 m.w.c
Technical Data :
| Model | MB35 |
| Strokes/1′ | 36 |
| Max. Flow Rate | 35 l/h |
| Max. Pressure | 6 bar ( 3 Phase ) 6 bar ( 1 Phase ) |
| Connections | Threaded and Flanged |
| Flow Rate | 11:50 l/h (stroke 2mm) 35÷155 L/h (Stroke 4mm.) |
| Motors | Three phase special 0.20 kW 4 poles – IP55 Single Phase special 0.24 kW 4 poles – IP55 |
| Pump | Single Unit Only |
| Adjustment | 0-10 scale micrometer knob |
| Materials | Aluminium casing Glass reinforced PP pump head AISI 316L |
| Weight | 10:25 Kgs |




