Condenser Water Pumps - Refrigeration and HVAC

Condenser water pumps circulate seawater or freshwater through marine refrigeration and HVAC condenser circuits to remove heat from chillers, condensing units, and heat exchangers. They are typically centrifugal pumps selected for required flow, pressure, temperature, salinity, and duty redundancy.

ProShipWorks provides end-to-end support to source and supply Condenser Water Pumps for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.

Last updated: October 11, 2026

Product Information

Product Name	Condenser Water Pumps
Product Category	Refrigeration and HVAC
Product Reference	1466
Brands / Manufacturers	Grundfos, Xylem Lowara, DESMI, KSB
Unit of Measure	Piece

Key Features

Key Feature
1. Marine-duty centrifugal pump construction
2. Suitable for seawater or freshwater condenser circuits
3. Corrosion-resistant wetted materials
4. Mechanical seal or magnetic-drive options
5. Continuous-duty electric motor operation

Applications of Condenser Water Pumps

Application
1. Central marine HVAC chilled-water plants
2. Refrigeration condenser cooling systems
3. Seawater-cooled air-conditioning packages

Models & Manufacturers

Model	Manufacturer
CR Series	Grundfos
NB/NBG Series	Grundfos
e-NSC Series	Xylem Lowara
e-SH Series	Xylem Lowara
NSL Series	DESMI
Etanorm Series	KSB

Technical Specifications

Model	Specification	Value	Unit
CR Series	Pump type	Vertical multistage centrifugal	—
NB/NBG Series	Pump type	End-suction centrifugal	—
e-NSC Series	Pump type	End-suction centrifugal	—
e-SH Series	Pump type	Stainless-steel centrifugal	—
NSL Series	Pump type	End-suction centrifugal	—
Etanorm Series	Pump type	Horizontal end-suction centrifugal	—

Standards, Certifications & Class Approval

Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.

Applicable Standards & Certification	Applicable requirements may include ISO 2858 and ISO 5199 for centrifugal pump dimensions and technical requirements, IEC 60034 for electric motors, and IEC 60092 for electrical installations in ships. Exact certification depends on pump configuration and project requirements.
Class Approval	DNV, ABS, Lloyd's Register, Bureau Veritas, and ClassNK may accept or approve marine pump installations where required. Approval is manufacturer-, model-, material-, and project-specific and should be confirmed from the type-approval certificate or vessel rules.

Installation, Maintenance & Safety Information

Installation Notes	Install in accordance with the maker's manual, with correct flow direction, aligned pipework, isolation valves, strainers, flexible connections where specified, and adequate priming or flooded suction. Confirm NPSH, seawater compatibility, electrical supply, rotation, and duty/standby arrangement before commissioning.
Maintenance Tips	Inspect seals, bearings, coupling, motor current, vibration, pressure, and flow at planned intervals. Clean seawater strainers and heat-exchanger circuits, check for corrosion and leakage, and protect unused pumps from freezing or seawater deposits. Follow the manufacturer's lubrication and overhaul intervals.
Safety Notes	Isolate and lock out electrical and fluid supplies before maintenance. Depressurize and drain the pump, use suitable PPE for seawater and treatment chemicals, and never operate dry or with closed discharge unless specifically permitted by the manufacturer.