Motor Driven Pumps

Motor-driven metering pumps are built to be robust and reliable, operating independently without the need for supervision. Those with mechanically actuated diaphragms offer versatility for various low-pressure applications. Maintenance is minimal, precision is uncompromising, and the value for money is exceptional.

The metering rate of this pump can be adjusted by changing both the stroke length and stroke rate, which corresponds to the motor speed. The rotation of the electric motor is reduced by a worm gear and transformed into a linear stroke movement via a cam. This motion is then transmitted to the diaphragm in the dosing head through a slide rod, while two check valves prevent any backflow of the feed chemical during the pumping process.

Sigma/ 1 (Basic Type)
The Sigma/ 1 Basic is an extremely robust motor-driven metering pump with patented multi-layer safety diaphragm for excellent process safety. It offers a wide range of power end designs, such as three-phase or 1-phase AC motors, even for Exe and Exde areas with ATEX certification.
Sigma/ 2 (Basic Type)
The Sigma/ 2 diaphragm metering pump, together with pumps of type Sigma/ 1 and Sigma/ 3, represents an integrated product range. They cover the capacity range from 17 to 1,030 l/h, with a consistent operating concept, control concept and spare parts management. A wide range of power end versions is...
Sigma/ 3 (Basic Type)
The Sigma/3 Basic motor-driven diaphragm metering pump features a patented multi-layer safety diaphragm, ensuring exceptional process safety and reliability. It also provides a variety of power end options, including both three-phase and single-phase AC motors, suitable for Exe and Exde environments with ATEX certification.
Sigma X Control Type Sigma/ 1
The Sigma/1 Control is a motor-driven diaphragm metering pump that offers flexible applications. It guarantees excellent process safety and reliability with its patented multi-layer safety diaphragm. Key features include a removable control unit, adjustable metering profiles, and a range of power end and control configurations
Sigma X Control Type Sigma/ 2
The Sigma/2 Control is a robust motor-driven diaphragm metering pump featuring a patented multi-layer safety diaphragm, ensuring exceptional process safety and reliability. It includes an integrated automatic overload shut-down for added protection. With a removable operating unit and adjustable metering profiles, this pump offers versatile applications.
Sigma X Control Type Sigma/ 3
The Sigma/3 Control motor-driven diaphragm metering pump ensures excellent process reliability with its patented multi-layer safety diaphragm. Intelligent features, including a removable operating unit and adjustable metering profiles, along with a variety of power end and control configurations, allow for versatile applications of this pump.
Sigma Plunger Pump - Basic Type - SBKa
The motor-driven plunger metering pump provides accurate delivery rates at high pressure ranges and is available in either ‘Basic’ or ‘Control’ versions, featuring a digital display and programmable capabilities.
Sigma Family in Hygienic Design
The Sigma Family by ProMinent features motor-driven metering pumps designed specifically for the food and beverage industry, boasting a hygienic design. With its straightforward stainless steel construction, the Sigma is incredibly easy to clean. As part of the DULCONNEX fluid management system, the latest Sigma includes integrated CANopen and PROFIBUS...
Vario D
The Vario D motor-driven metering pump ensures high process quality for continuous metering in straightforward tasks. It is ideal for applications such as dosing additives or flocculants in chemical metering.
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