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Circulator Pump — 2" Gem (Grundfos MAGNA3 Replacement)
Pump High Efficiency 2" - 50-180F High Flow
Part of MBTEK's "Gem" family of high-flow ECM variable-speed circulators, explicitly marketed as a direct Grundfos MAGNA3 replacement — this specific model replaces the Grundfos MAGNA3 50-120F (model 98126844).
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Product details
- Direct replacement for Grundfos MAGNA3 50-120F…
- 1/2 HP motor, 101–150kW capacity
- 50°F–180°F operating range
- NPT flanges, stainless hardware, pre-mold body…
Pump High Efficiency 2" - 50-180F High Flow
High-flow flange circulator pump for 208-230V systems, designed for dependable performance across a 50°F to 180°F operating range.
Key Benefits
- Direct boiler/heat pump connection (208-230V)
- Includes 2" NPT flanges, stainless hardware, and body insulation
- Direct replacement for Grundfos MAGNA3 50-120F (98126844)
- High-efficiency ECM variable-speed operation
- Low power draw relative to output (40 to 650W)
Specifications
- Size: 2" (DN50)
- Motor: 1/2 HP
- Voltage: 208-230V
- Capacity: 101 to 150kW
- Power Consumption: 40 to 650W
- Sizing Guide: 1x pump for 2x APOLLO 5-6T / UNI 150 / Pellet 150 / EKO 150 / HARD-BIO 150; 2x in series (up to 300kW) for 4x APOLLO 5-6T / UNI 150-300 / Pellet 150-300 / EKO 150-300 / HARD-BIO 150-300
| Replaces | Grundfos MAGNA3 50-120F (model 98126844) |
|---|---|
| Connection | 2" (DN50) |
| Power | 40–650W, 1/2 HP motor, 208–230V |
| Operating temperature range | 50°F–180°F |
| Capacity | 101–150kW |
| Flow rate | Not published |
| Head | Not published |
| Max pressure | Not published |
| Weight (net/gross) | Not published |
| Included hardware | NPT flanges, stainless hardware, pre-mold body insulation |
| Sizing guide (single pump) | 2x APOLLO 5-6 Ton / UNI 150 / Pellet 150 / EKO 150 / BIO DUO 150 |
| Sizing guide (2 pumps in series) | 4x APOLLO 5-6 Ton and similar, up to 300kW |
- Replaces
- Grundfos MAGNA3 50-120F (model 98126844)
- Connection
- 2" (DN50)
- Power
- 40–650W, 1/2 HP motor, 208–230V
- Operating temperature range
- 50°F–180°F
- Capacity
- 101–150kW
- Flow rate
- Not published
- Head
- Not published
- Max pressure
- Not published
- Weight (net/gross)
- Not published
- Included hardware
- NPT flanges, stainless hardware, pre-mold body insulation
- Sizing guide (single pump)
- 2x APOLLO 5-6 Ton / UNI 150 / Pellet 150 / EKO 150 / BIO DUO 150
- Sizing guide (2 pumps in series)
- 4x APOLLO 5-6 Ton and similar, up to 300kW
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