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Mahr - Discharge and Pressure Increase Pumps
Discharge pumps with low product shearing ensure an optimal discharge of viscous polymer melts of reactors. The discharge pumps can be supplied both liquid and electrically heated. Booster pumps are usually performed as an inline pump. They are mainly used after an extruder or a discharge pump. They create appropriate filling pressure for the following pumps or tools.
Booster pumps are also used as dosing pumps and ensure a smooth and gentle dosing and conveying polymer melts in the production of foils, films, profiles, granulates etc. Booster pumps are unheated, heated electrically or available for liquid or steam heating.
- Flow cc/rev : 100– 3000
- Counter pressure bar (max) : 700
The pump drive connection is available in following types:
- shaft type
Gear pump with motor
- Base plate with mounting block
- Coupling
- curved tooth coupling
- cardan shaft
- all-steel coupling
- magnetic coupling
- Motor
- asynchronous gear motor
- servo motor / servo gear motor
- synchronous geared motor
The drive units are designed according to the operating conditions.
Sealing systems for the gear pumps
- stuffing box seal
- rotary shaft seal
- labyrinth seal
- mechanical seal
- magnetic coupling
ATEX Directive 2014/34/EU
A version according to the Atex directive is available for the pump as well as for the drive.
Heating or cooling for the gear pumps Booster pumps are available unheated, electrically heated or liquid-heated.