01 · SWIMMING-POOL PUMP WITH HAIR COLLECTOR
NSZ Series
Horizontal single-stage stainless-steel centrifugal pump for large swimming-pool circulation and filtration, incorporating a hair collector. Model selection is based on flow, head, pool-water conditions, electrical supply and actual installation conditions.
02 · PRODUCT TYPE / SERIES POSITION
Horizontal single-stage stainless-steel centrifugal swimming-pool pump family
NSZ is a horizontal base-mounted assembly comprising motor, pump and hair collector. Eight models are reviewed against duty point, pool-water conditions, electrical supply, connection and installation requirements.
Horizontal single-stage swimming-pool pump
The confirmed family comprises NSZ300, NSZ400, NSZ500, NSZ700, NSZ1000, NSZ1300, NSZ1500 and NSZ2000.
- Select by flow and head
- Review pool-water conditions
- Confirm electrical and connection configuration
Motor, pump and hair-collector assembly
The source image shows the motor, pump casing, hair collector and base within one horizontal assembly. Flange standard, connection orientation and final supplied configuration are confirmed by model.
03 · EQUIPMENT APPLICATIONS
When to consider NSZ for a swimming-pool system
NSZ may be considered where a large swimming-pool circulation or filtration system requires a pump with a hair collector. Before selecting a model, establish circulation flow, total head, pool-water conditions and plant-room arrangement.
Large swimming-pool circulation
Provide circulation flow, total head and daily operating hours for model review.
Large swimming-pool filtration
Account for losses through the filter, pipework and in-line equipment when establishing total head.
Hotel and resort pools
Review operating schedule, pool-water conditions, electrical supply and plant-room space; this is an application context, not a project reference.
Existing swimming-pool pump replacement
Provide the existing model or nameplate photo, duty point, connection dimensions and available installation space for comparison.
04 · KEY TECHNICAL DATA
NSZ model selection starts with the duty point and pool-water conditions
Establish circulation flow and total head first. Then review pool-water conditions, temperature, electrical supply, connections and installation space before comparing the eight NSZ models.
Eight NSZ models — data for initial comparison
Eight models with key data
- NSZ300 — 35 m³/h; 20 m; 2.2 kW / 3 hp; DN1/DN2 65/40
- NSZ400 — 35 m³/h; 25.7 m; 3 kW / 4 hp; DN1/DN2 65/40
- NSZ500 — 60 m³/h; 24.2 m; 4 kW / 5 hp; DN1/DN2 65/50
- NSZ700 — 60 m³/h; 31.6 m; 5.5 kW / 7 hp; DN1/DN2 65/50
- NSZ1000 — 120 m³/h; 24.5 m; 7.5 kW / 10 hp; DN1/DN2 80/65
- NSZ1300 — 130 m³/h; 28.1 m; 9.2 kW / 13 hp; DN1/DN2 80/65
- NSZ1500 — 192 m³/h; 23.8 m; 11 kW / 15 hp; DN1/DN2 100/80
- NSZ2000 — 200 m³/h; 32.3 m; 15 kW / 20 hp; DN1/DN2 100/80
Conditions that determine the configuration
05 · PERFORMANCE / DUTY RANGE
Verified NSZ 50 Hz curves by model group
Only original curves with clear model mapping are used. Curves are not redrawn, axes and units are not changed, and selection points are not inferred from images.
Flow + head + pool-water conditions
The duty point must be reviewed on the correct curve together with pool-water quality, pipework, electrical supply and operating schedule.
NSZ300 · NSZ400
The curves are rendered directly from the original technical source without digitising or interpolating values.
NSZ1500 · NSZ2000
The curves are used only for the model group verified in the source.
06 · MATERIALS / CONFIGURATION
NSZ materials are confirmed by component and model
A component-level material is not used to describe the entire pump or every wetted component.
AISI 304 / AISI 304
Applies only to the components identified in the source; confirm the final configuration by model.
AISI 304 / AISI 304
The hair collector and shaft are recorded at component level; this is not a whole-pump material claim.
Graphite · SiC / NBR
Mechanical-seal faces use graphite and silicon carbide; rubber parts use NBR. Confirm all other components by model.
07 · INSTALLATION CONDITIONS
Installation and operating conditions for NSZ
McKarlen provides equipment-related data and guidance. System design, pipework, electrical work and site execution remain with the responsible project parties.
08 · TECHNICAL DOCUMENTS
NSZ documents are supplied by model
Submit the intended model, duty point and pool-water conditions to request the correct curve, datasheet, drawing and material confirmation.
Selection documents
Issued after model and duty confirmation.
Configuration documents
Confirm the document revision before use.
10 · SPARE PARTS, WARRANTY AND AFTER-SALES
Support based on model, equipment record and water conditions
Provide pump photos, nameplate, delivery record, duty point and observed condition for review.
Model-based spare parts
Identify parts from the model, configuration, serial record and an image of the required component.
Warranty enquiry
Review delivery records, operating data, pool-water conditions and actual inspection findings.
After-sales technical support
Equipment-related guidance, data review and product-document support.
11 · MODEL SELECTION
Submit operating data for NSZ model review
Submit flow, total head, pool-water conditions, electrical supply and installation arrangement. For replacement enquiries, also provide the existing model or nameplate photo, connection dimensions, and drawing / BOQ where available.
