Grundfos UPM3 Circulating Pump - Flex & AUTO | MEP Stock
Grundfos UPM3 Circulating Pump
The Grundfos UPM3 circulating pump range provides high-efficiency water circulation for compatible underfloor heating and central heating systems. Choose the Grundfos UPM3 Flex Pump 25-70 130 or Grundfos UPM3 AUTO Pump 25-70 130. Both options have a 7m maximum head and 130mm port-to-port length. Flex supports external PWM profile A control or selected speed-curve operation, while AUTO provides internal pressure and speed control.
Grundfos UPM3 Circulating Pump - Flex & AUTO | MEP Stock
Grundfos UPM3 Circulating Pump
The Grundfos UPM3 circulating pump range provides high-efficiency water circulation for compatible underfloor heating and central heating systems. Choose the Grundfos UPM3 Flex Pump 25-70 130 or Grundfos UPM3 AUTO Pump 25-70 130. Both options have a 7m maximum head and 130mm port-to-port length. Flex supports external PWM profile A control or selected speed-curve operation, while AUTO provides internal pressure and speed control.
Quick Trade Summary: Grundfos UPM3 Circulating Pump (Flex & AUTO)
The Grundfos UPM3 is the UK trade benchmark modulating circulating pump for hydronic underfloor heating manifolds and compact boiler integration. Featuring intelligent AUTOadapt and constant differential pressure modes, an ultra-low EEI <= 0.20 rating, and a standard 130mm port-to-port dimension, it delivers high electrical efficiency and quiet performance.
High-Efficiency Modulating Circulation for UFH Manifolds & Boilers
Installing modulating circulators on underfloor heating blending sets ensures correct flow velocity across all manifold loops while cutting electrical consumption. The Grundfos UPM3 features intelligent electronic control that automatically modulates pump speed according to heat load, preventing water velocity noise in occupied rooms.
Engineering Specifications & Material Standards
| Parameter | Specification Standard |
|---|---|
| Pump Model | Grundfos UPM3 (Flex AS / Auto Modulating) |
| Port-to-Port Length | 130mm (Standard UK Underfloor Heating Manifold Dimension) |
| Connection Thread | 1½" (G 1½) BSP Male Pump Unions (fits 1" / 28mm pump valves) |
| Maximum Delivery Head | 7 Meters (Head Pressure up to 70 kPa) |
| Energy Efficiency Index | EEI <= 0.20 (EcoDesign / ErP 2015 Tier 2 Compliant) |
| Operating Temperature | +2°C to +95°C (Maximum System Pressure 10 bar / PN10) |
| Control Modes | Proportional Pressure, Constant Pressure, Constant Curve, PWM Profile |
Step-by-Step Installation Protocol
- Port Isolation: Close 1" pump isolating valves on the manifold flow and return mixing assembly.
- Inspect Gaskets: Place new 1½" EPDM or fiber flat rubber pump union washers onto each union face.
- Mount in Position: Align 130mm pump body in vertical shaft orientation with the terminal box accessible.
- Tighten Unions: Hand-tighten pump union nuts, then tighten firmly with an adjustable wrench.
- Wire & Commission: Connect pre-wired cable to the wiring center/thermostat and select desired AUTO or proportional curve.
Frequently Asked Questions: Grundfos UPM3 Circulating Pump - Flex & AUTO | MEP Stock
What is the port-to-port length of this Grundfos UPM3 pump?
Exact 130mm port-to-port dimension matching all standard UK UFH manifold blending valve sets. (Reliance, Emmeti, Wundafloor, Uponor).
What union size does it fit?
1½" BSP male threads on the pump body, connecting to standard 1½" female pump union nuts. that adapt to 1" BSP or 22mm/28mm pipework.
What is the difference between AUTOadapt and Flex mode?
AUTOadapt continuously adjusts pump speed based on circuit demand; Flex allows manual speed curve selection. tant pressure, proportional pressure, or fixed speed curves.
Is this pump suitable as a direct replacement for failed manifold pumps?
Yes, it is the standard replacement for Wilo, Grundfos UPS, and Dab 130mm circulators. and Dab 130mm manifold pumps.
Does this pump come with the power cable?
Yes, supplied with a molex power plug and cable for fast wiring into terminal centers.
What is the maximum head rating?
Provides up to 7m delivery head, driving up to 12 manifold loops with ease.
Order Genuine Grundfos UPM3 Pumps Online
High-efficiency UFH manifold circulation in stock for immediate UK dispatch.
Quick Trade Summary: Grundfos UPM3 Circulating Pump (Flex & AUTO)
The Grundfos UPM3 is the UK trade benchmark modulating circulating pump for hydronic underfloor heating manifolds and compact boiler integration. Featuring intelligent AUTOadapt and constant differential pressure modes, an ultra-low EEI <= 0.20 rating, and a standard 130mm port-to-port dimension, it delivers high electrical efficiency and quiet performance.
High-Efficiency Modulating Circulation for UFH Manifolds & Boilers
Installing modulating circulators on underfloor heating blending sets ensures correct flow velocity across all manifold loops while cutting electrical consumption. The Grundfos UPM3 features intelligent electronic control that automatically modulates pump speed according to heat load, preventing water velocity noise in occupied rooms.
Engineering Specifications & Material Standards
| Parameter | Specification Standard |
|---|---|
| Pump Model | Grundfos UPM3 (Flex AS / Auto Modulating) |
| Port-to-Port Length | 130mm (Standard UK Underfloor Heating Manifold Dimension) |
| Connection Thread | 1½" (G 1½) BSP Male Pump Unions (fits 1" / 28mm pump valves) |
| Maximum Delivery Head | 7 Meters (Head Pressure up to 70 kPa) |
| Energy Efficiency Index | EEI <= 0.20 (EcoDesign / ErP 2015 Tier 2 Compliant) |
| Operating Temperature | +2°C to +95°C (Maximum System Pressure 10 bar / PN10) |
| Control Modes | Proportional Pressure, Constant Pressure, Constant Curve, PWM Profile |
Step-by-Step Installation Protocol
- Port Isolation: Close 1" pump isolating valves on the manifold flow and return mixing assembly.
- Inspect Gaskets: Place new 1½" EPDM or fiber flat rubber pump union washers onto each union face.
- Mount in Position: Align 130mm pump body in vertical shaft orientation with the terminal box accessible.
- Tighten Unions: Hand-tighten pump union nuts, then tighten firmly with an adjustable wrench.
- Wire & Commission: Connect pre-wired cable to the wiring center/thermostat and select desired AUTO or proportional curve.
Frequently Asked Questions: Grundfos UPM3 Circulating Pump - Flex & AUTO | MEP Stock
What is the port-to-port length of this Grundfos UPM3 pump?
Exact 130mm port-to-port dimension matching all standard UK UFH manifold blending valve sets. (Reliance, Emmeti, Wundafloor, Uponor).
What union size does it fit?
1½" BSP male threads on the pump body, connecting to standard 1½" female pump union nuts. that adapt to 1" BSP or 22mm/28mm pipework.
What is the difference between AUTOadapt and Flex mode?
AUTOadapt continuously adjusts pump speed based on circuit demand; Flex allows manual speed curve selection. tant pressure, proportional pressure, or fixed speed curves.
Is this pump suitable as a direct replacement for failed manifold pumps?
Yes, it is the standard replacement for Wilo, Grundfos UPS, and Dab 130mm circulators. and Dab 130mm manifold pumps.
Does this pump come with the power cable?
Yes, supplied with a molex power plug and cable for fast wiring into terminal centers.
What is the maximum head rating?
Provides up to 7m delivery head, driving up to 12 manifold loops with ease.
Order Genuine Grundfos UPM3 Pumps Online
High-efficiency UFH manifold circulation in stock for immediate UK dispatch.
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