Grundfos UPS/UPSD 65-180 Circulator Replacement Pump Head 415V (96406032) #4912

Grundfos UPS / UPSD 65-180 Circulator Replacement Pump Head – 415V (96406032) #4912

This listing is for a Grundfos UPS / UPSD 65-180 replacement pump head kit, product number 96406032. It is designed as a replacement head for compatible Grundfos UPS 65-180 and related UPSD 65-180 circulator pump assemblies where the hydraulic size, voltage and body interface match the existing installation.

Condition: supplied in as new surplus condition – the item has not been installed or used but may show minor cosmetic marks from storage and handling. Guarantee: supplied with a 2-year guarantee.

• Part type: replacement circulator pump head kit
• Grundfos product number: 96406032
• Model reference: UPS / UPSD 65-180
• Electrical supply: 3 × 400–415 V, 50 Hz
• Pump style: glandless wet-rotor circulator head
• Fits Grundfos range: UPS65-180
• Net weight: 14.7 kg
• Gross weight: 15.4 kg
• Use: replacement head for compatible UPS / UPSD 65-180 pump bodies
• Important: pump body, flanges and pipework connections are not included

Need help confirming compatibility?
Call us on 01803 220416 for technical advice before ordering.

Manufacturer product page

Full product information can be viewed on the official Grundfos product page:
View Grundfos pump head kit 96406032 – Variant specifications

Technical documentation

Archived Grundfos UP, UPS and UPSD Series 200 data can be viewed here:
View Grundfos UP, UPS and UPSD technical data booklet

Compatibility guidance

This is a replacement pump head only, not a complete circulator pump. It should be selected by matching the existing Grundfos model, head part number, electrical supply, hydraulic size and pump body interface.

• Check the existing pump is a compatible UPS / UPSD 65-180 assembly
• Confirm the existing head or motor label is 3 × 400–415 V, 50 Hz
• Confirm the replacement head interface matches the installed pump body
• Check whether the existing installation is single-head UPS or twin-head UPSD
• If unsure, send us photos of the pump nameplate, head label and pump body

Reference body details

For reference, the related Grundfos UPS / UPSD 65-180 F body range is commonly associated with DN65 flanged pipework, PN6/10 pressure rating and a 340 mm port-to-port length. This listing is for the replacement head only, so the existing pump body, flanges and pipework are normally retained.

Typical applications

• Replacement head for existing UPS / UPSD 65-180 installations
• Heating circulation systems
• Commercial building-services circulation
• Plant-room heating circuits
• Like-for-like repair where the existing pump body remains installed

Frequently Asked Questions

Is this a complete pump?

No. This listing is for the replacement pump head / motor head only. It does not include the pump body, flanges or pipework connections.

Will this fit my existing UPS / UPSD 65-180 pump?

It may fit if your existing pump body is a compatible UPS / UPSD 65-180 assembly and the head interface, voltage and hydraulic size match. Please compare the existing head label and pump body details before ordering.

What is the difference between UPS and UPSD?

UPS generally refers to the single-head circulator version, while UPSD refers to the twin-head version. A compatible replacement head may be used on a matching side of a twin-head UPSD pump body, provided the interface and electrical specification match.

Why replace the pump head instead of the full pump?

Replacing the pump head can be a practical option where the existing pump body, flanges and pipework are still serviceable. It avoids disturbing the pipework, changing flange dimensions or converting the installation to a different pump platform.

Why use an original-style replacement head instead of a modern high-efficiency replacement?

An original-style UPS / UPSD replacement head can suit sites where the existing system was designed around the older Grundfos UPS wet-rotor circulator range. If the pump body, hydraulic duty, electrical supply and head interface are correct, replacing the head can be simpler and less disruptive than redesigning the installation around a modern high-efficiency circulator.

Some customers also prefer repairing older Grundfos circulators because the original pump body and installation have already proved reliable on site. Where the existing body is sound, a replacement head can keep the system closer to its original specification.

What minimum inlet pressure / NPSH should be considered?

Older Grundfos UPS / UPSD 65-180 F data gives minimum inlet-pressure guidance for the related 65-180 wet-rotor circulator family. The required inlet pressure increases as liquid temperature rises and should always be checked against the actual installed duty and system conditions.

• 75 °C: approximately 0.7 bar minimum inlet pressure
• 90 °C: approximately 1.0 bar minimum inlet pressure
• 120 °C: approximately 2.25 bar minimum inlet pressure

This is useful comparison data for the UPS / UPSD 65-180 family, but it should not be treated as a substitute for checking the exact pump nameplate, installation height, system pressure and manufacturer documentation for the installed pump.

Does this pump head have a mechanical shaft seal?

No. UPS / UPSD circulators are glandless wet-rotor pumps, so the head does not use a conventional mechanical shaft seal like a dry-rotor pump.

Is this a modern high-efficiency circulator?

No. This is an original-style replacement head for compatible UPS / UPSD circulator assemblies. If replacing the full pump with a modern high-efficiency circulator, check the pipework dimensions, flange standard, electrical supply, control arrangement and hydraulic duty carefully.

Who should install this pump head?

Installation should be carried out by a competent heating engineer or electrician. The pump must be isolated electrically and hydraulically, and the replacement head must be fitted to a compatible pump body using the correct procedure and seals.

About Our Stock

Stock code: #4912
We specialise in supplying new and unused surplus pumps, pump heads and pump spares. This item is inspected prior to dispatch and supplied with a 2-year guarantee.