Kolmeks / Kolmeks Oy industrial pumps and fluid equipment

Industrial centrifugal in-line pumps, drive motors, and circulating units from Kolmeks / Kolmeks Oy deliver dependable fluid transfer across heating, cooling, and process piping.

Kolmeks variable speed in-line pumps with integrated VFD

Energy-efficient in-line pumps from Kolmeks in MD and NC series feature an integrated variable frequency converter paired with a compact motor having an elongated shaft. Direct pipeline mounting supports modern heating and cooling distribution across commercial properties.

Integrated frequency converter for continuous pressure and flow regulation
Custom Kolmeks electric drives designed for quiet and vibration-free duty
Mechanical shaft seals using silicon carbide and carbon rings for hot media
Identification of replacement wheels, seals, and sensors from nameplate data

Kolmeks in-line centrifugal pumps with standard IEC motors

Industrial in-line centrifugal pumps from Kolmeks in KI and SD series feature a modular layout equipped with standard IEC flange-mounted motors. The architecture provides high serviceability, steady fluid movement, and convenient access to hydraulic parts during maintenance.

Standard IEC flange-mounted electric motors ensuring straightforward overhaul
Robust iron housing with anti-corrosion protective finish for heating plant
Full operational compatibility with external variable frequency drive control panels
Component selection for impellers, wear rings, and seals using serial tags

Kolmeks industrial in-line pumps in stainless steel and duplex

Heavy-duty industrial pumps by Kolmeks crafted from AISI 316 stainless steel, Duplex A890 alloy, or 254 SMO superalloy handle corrosive and aggressive fluids. The pumps serve continuous duties in chemical, pulp and paper, mining, and maritime seawater circuits.

Flange sizes ranging from DN32 to DN250 with motor output reaching up to 110 kW
High-alloy metallurgy resistant to brine solutions, acids, and seawater
Maintenance-free motor bearings equipped with long-life factory lubrication
Selection of chemical-resistant mechanical shaft seals and spare impeller wheels

Kolmeks vertical multi-stage pumps in the MVV series

High-head vertical pumps from Kolmeks across MVV, MVVF, MVVCF, and MVVS ranges generate elevated pressure within compact footprints. Multiple stainless steel AISI 304 impellers arranged in series deliver steady liquid elevation in booster and boiler feeding systems.

Hydraulic stages built from AISI 304 with rigid grey iron base housings
System pressure capability up to multiple bars with low operational hum
Targeted for water boosting skids, reverse osmosis, and boiler feedwater
Replacement intermediate diffusers, impellers, and mechanical shaft seals by model

Kolmeks bronze circulating pumps for domestic water circuits

Specialized Kolmeks circulating pumps in AP, ALP, LP, AEP, and KC series feature housings and impellers fabricated from corrosion-resistant CuSn10Zn2 bronze. The units operate in continuous contact with oxygenated drinking water, mineral springs, and swimming pool waters.

Bronze CuSn10Zn2 alloy fluid components resisting chlorine and saline water
Verified hygienic metallurgy safety for potable domestic hot water recirculation
Close-coupled inline layout with an extended motor drive shaft reducing unit weight
Selection of replacement bronze alloy impellers, companion flanges, and shaft seals

Kolmeks twin in-line pumps with dual heads in T and AT series

Dual-head circulating pumps from Kolmeks in T and AT series combine two independent hydraulic units within a single compact body. An integrated automatic flap valve enables instantaneous 100% duty standby or parallel running during peak thermal demand in heating networks.

Single iron body integrating an internal changeover non-return flap valve
Uninterrupted fluid movement in district heating substations and chillers
Servicing of one drive head while the alternate unit maintains active flow
Matching replacement motor drive heads, internal flap mechanisms, and blind flanges

Variable frequency control and drive integration across MD, NC, and SC series

Variable-speed centrifugal in-line pumps from Kolmeks in MD, NC, and SC model ranges provide an energy-optimized solution for closed and open HVAC piping systems.

The frequency inverter mounts directly onto the perimeter of an elongated motor shaft, creating a close-coupled unit without intermediate flexible couplings.

Digital microprocessor electronics continuously sample system differential pressure, adjusting impeller rotational velocity to match instantaneous thermal demand.

This dynamic adaptation eliminates hydraulic noise, prevents cavitation damage, and curtails utility electrical consumption across commercial facilities.

Modular inline architecture and standard IEC electric drive motors in KI and SD series

Industrial inline centrifugal units in Kolmeks KI and SD families utilize a standardized modular architecture combined with IEC flange-mounted electric drives.

This structural principle allows swift integration into technical equipment rooms, district heating substations, and industrial cooling loops.

Plant technicians perform routine maintenance without disturbing main pipe flanges: the pull-out motor assembly allows full withdrawal of the impeller and mechanical shaft seal while the pipeline stays intact. All IEC motors are ready for pairing with remote drive cabinets.

High-alloy metallurgy in AISI 316, Duplex A890, and 254 SMO industrial pumps

For handling aggressive fluids, chemical solutions, saline solutions, and seawater, Kolmeks manufactures dedicated industrial pumps from AISI 316 austenitic stainless steel, Duplex A890 alloy, and 254 SMO superalloy.

Wetted geometries endure continuous duty across pulp and paper processing, metallurgy, mining, and effluent treatment installations. High structural strength paired with dynamically balanced impellers protects against pitting and fatigue cracking.

The units incorporate silicon carbide shaft seals and resilient FPM fluoropolymer elastomer O-rings.

Multi-stage hydraulic engineering in vertical MVV booster pumps

Vertical multi-stage centrifugal pumps from Kolmeks in MVV, MVVF, MVVCF, and MVVS series develop high hydraulic heads when moving clean or mildly aggressive liquids in water boosting, reverse osmosis, and boiler feedwater circuits.

Successive stainless steel AISI 304 impellers and stage diffusers build fluid pressure along the vertical axis with minimal pulsation. The vertical footprint saves plant floor space, while a heavy iron base plate secures the pump rigidly to the floor, isolating pipe systems from mechanical strain.

Corrosion-resistant CuSn10Zn2 bronze alloy in domestic water circulating pumps

Circulating pumps in Kolmeks AP, ALP, LP, AEP, and KC series are engineered specifically for open domestic hot water systems, potable water circuits, thermal mineral baths, and chlorinated pool facilities. The fluid housing and impeller are molded from high-purity CuSn10Zn2 tin-zinc bronze alloy.

This bronze metallurgy provides outstanding resistance against dezincification and electrochemical corrosion driven by dissolved oxygen. Full compliance with potable hygiene requirements prevents contamination, maintaining dependable service life without rust.

Twin pump assemblies in T and AT series with integrated automatic flap valves

Dual-head centrifugal pumps in Kolmeks T and AT series unite two identical hydraulic heads inside a single iron housing for heating and cooling networks demanding uninterrupted operation.

An internal mechanical changeover flap valve automatically isolates the idle head when the active motor starts, eliminating liquid backflow. During peak winter heating periods, both motors can operate in parallel to double total fluid throughput.

The housing permits complete servicing or seal overhaul on one drive unit while the companion unit maintains pipeline circulation.

Kolmeks / Kolmeks Oy and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Kolmeks / Kolmeks Oy and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.