Multi-stage pumps
MVV multi-stage pump
Applications: Residential construction, air conditioning in commercial buildings, process industry, hospitals and health centers, schools and daycare centers, spas and swimming pools, in washing and cleaning applications, transfer of process fluids, cooling, drinking water, also suitable for reverse osmosis systems and various irrigation systems. Materials: Wetted parts made of stainless steel (AISI 304) Seal: carbon/silicon […]
MVVCF multi-stage pump
Applications: Typical applications include residential construction, air conditioning in commercial buildings, primary side of district heating, hospitals and health centers, schools and daycare centers. Materials: Cast iron housing (EN-GJL-250) Other hydraulic parts made of stainless steel (AISI 304) Seal: carbon/silicon carbide/FPM rubber
MVVF multi-stage pump
Applications: Residential construction, air conditioning in commercial buildings, process industry, hospitals and health centers, schools and daycare centers, spas and swimming pools, in washing and cleaning applications, transfer of process fluids, cooling, drinking water, also suitable for reverse osmosis systems and various irrigation systems. Materials: Wetted parts made of stainless steel (AISI 304) Seal: carbon/silicon […]
MVVS multi-stage pump
Applications: Suitable for clean aggressive liquids, for example in industrial processes and heat recovery systems. Residential construction, commercial building air conditioning, process industry, hospitals and healthcare centers, schools and daycare centers, spas and swimming pools, washing and cleaning applications, transfer of process fluids, cooling, drinking water, also suitable for reverse osmosis systems and various irrigation […]
MVVSF multi-stage pump
Applications: Suitable for clean aggressive liquids, for example in industrial processes and heat recovery systems. Residential construction, commercial building air conditioning, process industry, hospitals and healthcare centers, schools and daycare centers, spas and swimming pools, washing and cleaning applications, transfer of process fluids, cooling, drinking water, also suitable for reverse osmosis systems and various irrigation […]
Pumpselector
Choosing the right pump model for your specific requirements.
Structure and operating principle of multi-stage pumps
Multi-stage pumps are vertical centrifugal pumps with dry motors. Multi-stage pumps are designed specifically for applications where high-pressure output is required. The high-pressure output of the multi-stage pump is enabled by the design of multiple overlapping impellers. The compact in-line design makes installation easy and the pump can fit into a small space.
Model series, sizes and control options
MVVF models are equipped with round flanges according to DIN EN 1092-2 in sizes DN25…DN100. MVV models are equipped with oval threaded flanges G1-G2” according to EN ISO 228 PN16.
Multi-stage pumps are available in the power range 0.37 kW…45 kW and with a comprehensive range of material options to suit different applications. The MVV pump series is available in cast iron (EN-GJL-250), stainless steel (AISI 304) or acid-proof steel (AISI 316).
A comprehensive range of mechanical shaft seals enables applications up to 140 °C. The multi-stage pumps are available both as a fixed-speed pump and with an integrated frequency converter. The pump with an integrated frequency converter offers several control methods depending on the application: direct speed reference, constant pressure difference, constant pressure (pressure boost), constant temperature, control by external automation or control via MODBUS RTU. Settings can be conveniently made on the frequency converter display or via a Bluetooth connection with a mobile app.
Advantages:
- The fluid flow is efficient and optimized, meaning that the power produced by the motor is utilized as best as possible.
- Significantly lower NPSH values reduce the risk of cavitation and enable the pump to be used in more challenging conditions.
- The well-designed, efficient and compact structure enables energy savings and reduces operating costs.
- The pumps are easy to maintain and have a comprehensive and fast supply of spare parts.
Uses and applications
Multi-stage pumps can be used for pressure boosting, boiler feed, irrigation and fire protection pumps for clean oxygen-rich liquids. They are also suitable for clean aggressive liquids, for example in industrial processes and heat recovery systems.
Typical applications include residential construction, air conditioning in commercial buildings, primary side of district heating, process industry, hospitals and healthcare centers, schools and daycare centers, spas and swimming pools, as well as the shipbuilding industry and flue gas scrubbers. In addition, multi-stage pumps can be used, for example, in cooling, washing and cleaning applications, transfer of process fluids, drinking water treatment and solar energy solutions. The pumps are also suitable for reverse osmosis systems and various irrigation systems. Multi-stage pumps can also be found in Kolmeksi pressure boosting stations.
24/7 maintenance and spare parts services
Kolmeks provides spare parts and maintenance services for pumps and air separators. We service pumps of various sizes reliably and professionally, ensuring their efficient and trouble-free operation.
We offer responsive maintenance support and spare parts services to keep our customers’ systems up and running in all situations.