Grundfos UPS 15-50 N 130 Stainless Hot Water Pump | 97549426

Description

The Grundfos UPS 15-50 N 130 (97549426) is a three-speed circulator pump with a corrosion-free stainless steel housing, recommended by Grundfos for domestic hot water recirculation and underfloor heating systems.

It delivers up to 5 m head in a compact 130 mm body, runs on a standard 230 V supply and handles water up to 110 °C, making it a proven secondary circulator for hot water loops.

5 m

Maximum head

3

Speed settings

130 mm

Port-to-port length

Stainless

Pump housing

110 °C

Liquid temperature

IP44

Enclosure class

Made for hot water loops

The stainless steel housing is recommended by Grundfos for domestic hot water recirculation, and the pump can be connected to an on/off time switch to limit running hours.

Check before you order

This is a fixed three-speed pump, not a variable-speed ECM circulator. Match the 130 mm port-to-port length and port size (DN 15) to the pump you are replacing, and fit it with a horizontal motor shaft.

Safety

Isolate the electrical supply and let the pump cool before working on it. Hot water can scald. Electrical connection must be carried out by a competent person in line with BS 7671.

Key features

Stainless steel housing

Corrosion-free stainless steel suits domestic hot water and is not affected by the oxygen that attacks cast iron.

Three speeds

A 3-step speed selector lets you match the pump to the flow and head the loop needs.

Canned-rotor design

Canned rotor with ceramic shaft and radial bearings, a carbon axial bearing and a stainless steel rotor can. There is no shaft seal to wear.

Hot water ready

Handles liquid up to 110 °C, well above typical domestic hot water temperatures.

Timer compatible

Connect it to an on/off time switch to limit running hours and reduce energy use.

No extra motor protection

The motor is impedance protected, so no additional motor protection is needed.

Specification

General

Brand

Grundfos

Model

UPS 15-50 N 130

Manufacturer part number

97549426

Application

Domestic hot water recirculation, underfloor heating

Hydraulic

Nominal port size

DN 15

Port-to-port length

130 mm

Maximum head

5 m

Speed settings

3

Liquid temperature

Up to 110 °C

Maximum system pressure

10 bar

Electrical

Supply

1 x 230 V, 50 Hz

Enclosure class

IP44

Construction

Pump housing

Stainless steel

Bearings

Ceramic shaft and radial, carbon axial

Rotor can

Stainless steel

Frequently asked questions

What does the N in UPS 15-50 N mean?

N denotes the stainless steel pump housing, which suits domestic hot water.

Can it be used for domestic hot water recirculation?

Yes. Grundfos recommends the UPS N range for domestic hot-water recirculation and underfloor heating systems.

How do I choose the speed?

Select the lowest speed that gives the flow you need. Higher speeds give more head but use more power.

Can I use it with a time clock?

Yes. It can be connected to an on/off time switch to limit pump running hours.

Is it a variable-speed pump?

No. It is a fixed three-speed pump. For automatic adjustment choose an ALPHA or UPS2 model.

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Room Dimensions

Length (in m):

Width (in m):

Height (in m):

Room Type

Living Room

Bedroom

Kitchen

Bathroom

Conservatory

Hallway

Glazing Type

Single Glazed

Double Glazed

Triple Glazed

External Walls

0 Wall

1 Wall

2 Walls

3 Walls

4 Walls

Insulation Level

Poor

Average

Good (New Build)

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