Grundfos UPC UPCD 65-120 F Circulator Pump Head 415V 96406335 #4876

Grundfos UPC / UPCD 65-120 F Replacement Pump Head – 415V Circulator Head (96406335) #4876

This listing is for a Grundfos UPC / UPCD 65-120 F replacement pump head, part number 96406335. It is intended for compatible Grundfos UPC / UPCD 65-120 F circulator pump bodies where the head interface, hydraulic size and electrical specification match the existing installation.

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

• Part type: replacement circulator pump head / motor head
• Grundfos part number: 96406335
• Model reference: UPC / UPCD 65-120 F
• Electrical supply: 3-phase, 415 V, 50 Hz
• Pump style: glandless wet-rotor circulator head
• Use: replacement head for compatible UPC / UPCD 65-120 F pump assemblies
• Important: pump body, flanges and pipework connections are not included

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

Reference documentation

Archived UPC / UMC range information can be viewed here:
View archived Grundfos UMC / UPC in-line circulator data

Compatibility guidance

This is a replacement pump head only. It should be selected by matching the existing pump model, voltage, hydraulic size and pump body interface.

• Check the existing pump is a compatible UPC / UPCD 65-120 F assembly
• Confirm the existing head or motor label is 3-phase 415 V, 50 Hz
• Confirm the head interface matches the installed pump body
• Check whether the existing unit is single-head UPC or twin-head UPCD
• If unsure, send us photos of the pump nameplate, head label and pump body

Reference body details

For reference, UPC / UPCD 65-120 F pump bodies are commonly associated with DN65 flanged pipework. This listing is for the head only, so the existing pump body, flanges and pipework are retained.

Typical applications

• Replacement head for existing UPC / UPCD 65-120 F installations
• Heating circulation systems
• Commercial building-services circulation
• Plant-room pump repairs where the existing pump body remains installed
• Like-for-like repair where pipework changes are not required

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 UPC / UPCD 65-120 F pump?

It may fit if your existing pump body is a compatible UPC / UPCD 65-120 F 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 UPC and UPCD?

UPC generally refers to the single-head circulator version, while UPCD refers to the twin-head version. A compatible replacement head may be used on the matching side of a twin-head UPCD 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 UPC / UPCD replacement head can suit sites where the existing system was designed around the older UPC / UPS wet-rotor circulator style. 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 new high-efficiency circulator.

For related Grundfos UPS / UPSD 65-120 F data, older catalogue information gives minimum inlet-pressure guidance of 0.9 bar at 75 °C, 1.2 bar at 90 °C and 2.45 bar at 120 °C. This is useful comparison data, but any modern replacement should still be checked against its own minimum inlet pressure / NPSH requirement before substitution.

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.

Does this pump head have a mechanical shaft seal?

No. UPC / UPCD 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 UPC / UPCD 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: #4876
We specialise in supplying new and unused surplus pumps, pump heads and pump spares. All units are inspected prior to dispatch and supplied with a 2-year guarantee.