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Circulator Pump — 4" Gem (Grundfos MAGNA3 Replacement)
Pump High Efficiency 4" - 100-120F High Flow
Part of the "Gem" family, marketed as a direct Grundfos MAGNA3 100-120F replacement (the specific MAGNA3 model number for this size is not stated in source, unlike the 2" and 3" Gem models).
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Product details
- Direct replacement for a Grundfos MAGNA3…
- 2 HP motor, 150–250kW capacity
- 100°F–120°F operating range
- NPT flanges, stainless hardware, pre-mold body…
Pump High Efficiency 4" - 100-120F High Flow
High-flow flange circulator pump for 208-230V systems, designed for large hydronic loops with efficient variable-speed operation (100°F to 120°F range).
Key Benefits
- Includes 4" NPT flanges and stainless hardware
- Direct replacement for Grundfos MAGNA3 100-120F
- Direct boiler/heat pump connection (208-230V)
- Includes pre-mold body insulation to reduce heat loss
- Variable-speed ECM operation for energy savings
Specifications
- Thread Size: 4"
- Motor: 2 HP
- Voltage: 208-230V
- Capacity: 150 to 250kW
- Power Consumption: 40 to 650W
- Sizing Guide: 1x pump for 4x APOLLO 5-6T / UNI 150-300 / Pellet 150-300 / EKO 150-300 / HARD-BIO 150-300; 2x in series (up to 500kW) for 8x APOLLO 5-6T / UNI 300-500 / Pellet 300 / EKO 300 / HARD-BIO 300
| Replaces | A Grundfos MAGNA3 100-120F model (specific model number not stated in source) |
|---|---|
| Connection | 4" |
| Power | 40–650W, 2 HP motor, 208–230V |
| Operating temperature range | 100°F–120°F |
| Capacity | 150–250kW |
| 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 | Same pattern as the 3" Gem model (up to 4x APOLLO 5-6 Ton / UNI 150-300 / Pellet 150-300 per pump; up to 500kW / 8x APOLLO 5-6 Ton with two in series) |
- Replaces
- A Grundfos MAGNA3 100-120F model (specific model number not stated in source)
- Connection
- 4"
- Power
- 40–650W, 2 HP motor, 208–230V
- Operating temperature range
- 100°F–120°F
- Capacity
- 150–250kW
- 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
- Same pattern as the 3" Gem model (up to 4x APOLLO 5-6 Ton / UNI 150-300 / Pellet 150-300 per pump; up to 500kW / 8x APOLLO 5-6 Ton with two in series)
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