Grundfos UPCD 80-120 F Flanged Pump Heating Circulator 415v Dn80 96406337 #4888 USED

Grundfos UPCD 80-120 F Flanged Twin-Head Heating Circulator Pump – 415V DN80 (96406337) #4888 USED

This listing is for a Grundfos UPCD 80-120 F complete flanged twin-head heating circulator pump. It is a used original-style Grundfos wet-rotor circulator for heating and commercial building-services circulation duties, with DN80 flanged connections and 3-phase 415V electrical supply.

Condition: supplied as a used pump. The unit has been previously installed/used and may show cosmetic wear consistent with service use. It is inspected prior to dispatch. Guarantee: supplied with a 6-month guarantee.

• Pump type: complete twin-head heating circulator pump
• Model reference: UPCD 80-120 F
• Reference / head part number: 96406337
• Connection: DN80 flanged
• Electrical supply: 3-phase, 415 V, 50 Hz
• Pump style: glandless wet-rotor circulator
• Configuration: twin-head / duty-standby style pump assembly
• Use: heating circulation and commercial building-services circulation

Need help confirming suitability?
Call us on 01803 220416 for technical advice.

Reference documentation

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

Compatibility guidance

This pump should be selected by matching the existing Grundfos model, voltage, flange size, hydraulic duty and installation dimensions. If replacing an existing UPCD 80-120 F, please compare the pump nameplate and pipework arrangement before ordering.

• Check the existing pump is a UPCD 80-120 F or suitable equivalent
• Confirm the electrical supply is 3-phase 415 V, 50 Hz
• Confirm the pipework is suitable for a DN80 flanged circulator
• Check the hydraulic duty against the existing system requirement
• If unsure, send us photos of the existing pump nameplate and installation

Typical applications

• Heating circulation systems
• Commercial building-services circulation
• Plant-room heating circuits
• Replacement of existing UPCD 80-120 F installations
• Like-for-like replacement where pipework changes are not desired

Frequently Asked Questions

Is this a complete pump?

Yes. This listing is for a complete Grundfos UPCD twin-head circulator pump, not just a replacement pump head.

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 twin-head pump is often used where duty/standby operation, alternating duty or increased service resilience is required.

What does the twin-head design do?

The twin-head design has two pump heads mounted on a common pump body. Depending on the control arrangement, this can allow duty/standby operation, alternating operation or increased resilience compared with a single-head pump.

Will this replace my existing UPCD 80-120 F?

It may be suitable as a like-for-like replacement if your existing pump is a compatible UPCD 80-120 F and the electrical supply, flange size, installation dimensions and hydraulic duty match. Please compare the pump nameplate and site pipework before ordering.

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

An original-style UPCD pump can be useful where the existing system was designed around the older Grundfos UPC / UPS wet-rotor circulator style. If the pipework, hydraulic duty and electrical supply already match, replacing like-for-like can be simpler and less disruptive than redesigning the installation around a modern high-efficiency circulator.

Older wet-rotor circulators also have known minimum inlet-pressure characteristics from the original catalogue data. Any modern replacement should still be checked against its own minimum inlet pressure / NPSH requirement, pipework dimensions, flange standard, control arrangement and electrical supply before substitution.

What minimum inlet pressure / NPSH should be considered?

Older Grundfos UPS / UPSD 80-120 F data gives minimum inlet-pressure guidance for the related 80-120 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 0.5 bar minimum inlet pressure
• 90 °C: approximately 1.0 bar minimum inlet pressure
• 120 °C: approximately 1.5 bar minimum inlet pressure

This is useful comparison data for older UPC / UPS-style circulators, 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 have a mechanical shaft seal?

No. UPC / UPCD circulators are glandless wet-rotor pumps, so they do 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 Grundfos UPCD circulator. It is suitable where a like-for-like replacement is preferred, but it is not the same as a modern electronically controlled high-efficiency circulator such as a MAGNA-style pump.

Who should install this pump?

Installation should be carried out by a competent heating engineer or electrician. The pump must be isolated electrically and hydraulically, installed with suitable gaskets and valves, and wired according to the pump nameplate and applicable electrical regulations.

About Our Stock

Stock code: #4888
We specialise in supplying used and surplus pumps. This item is inspected prior to dispatch and supplied with a 6-month guarantee.