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Plungers are synonymous with accurate metering. The heart of the liquid end in a plunger metering pump is a high-resistance plunger made from coated stainless steel. Extended product life is achieved by highly durable wetted parts, ball, piston, and seal.
Their modular construction makes ProMinent plunger metering pumps the cost-efficient option for pumping fluids.

The plunger metering pump Sigma/ 2 (Basic Type) (SBKa) is an extremely robust and high-performance metering pump. The pump capacity of which can be precisely adjusted in 0.2% increments, either manually or optionally, with an electric actuator or control drive. A wide range of power end versions is available for use in areas at risk from explosion with ATEX certification.

The plunger metering pumps Makro TZ impresses with its excellent process reliability. They boast powerful performance and are built to last long. Their modular construction enables them to be outstandingly adapted to the performance requirements of the respective application.

The plunger metering pump Makro/ 5 can virtually be used throughout the low-pressure range and its modular construction enables it to be outstandingly adapted to the performance requirements of the respective application.

The high-performance plunger metering pump ORLITA PS enables precise pump capacities at high temperature and pressure conditions. These plunger pumps are simple, robust, and reliable. Their modular construction permits the free combination of drive units, drives and dosing heads, producing a pump for a range of different feed rates and media operating at different working pressures.

The ORLITA DR is a valveless plunger metering pump and can be operated within a broad stroke rate range. It is designed to handle high-viscosity and extremely high-viscosity media of up to 106 mPas within a wide temperature range from -40 °C to 400 °C. They are also capable of handling fluids with solid fractions.
As soon as the plunger is moved into the dosing head, the suction valve closes, and the feed chemical flows out of the dosing head through a discharge valve. When the plunger moves in the opposite direction, the discharge valve closes due to the negative pressure in the dosing head. Fresh feed chemical flows through the suction valve into the dosing head.