
G SERIES · TWO-POLE SUBMERSIBLE GRINDER PUMP
G 0.75-5.5 kW 2P grinder pump range
One product family with eight hydraulic selections, eight exact catalog codes and sixteen current configurations. Matching SF float-switch codes remain outside the page count.
● 0.75-5.5 kW · 8 models · 16 configurations

Series Overview
Key specifications shared across the G 0.75-5.5 kW series.
Published data specifies IP68 protection, class F insulation, built-in motor protection, water temperature up to 40°C and pH 6-10. Three-phase rows use 380 V +/-10%; the listed S and SF rows up to 1.1 kW use single-phase 220 V at both frequencies.
Model Range
Compare hydraulic performance across all available power ratings.
Eight performance selections, 40 mm and 50 mm outlets. Published data uses one combined 50/60 Hz row per selection. Rated and maximum cells show flow / head in GPM / ft.
| Model | Phase | Voltage V | Motor HP | Outlet mm | Rated flow / head GPM / ft | Max flow / head GPM / ft | Cable mm² |
|---|---|---|---|---|---|---|---|
| 40G2.75 | 3~ | 380 | 1.0 | 40 | 35.2 / 32.8 | 52.8 / 49.2 | 1.0 |
| 40G2.75S | 1~ | 220 | 1.0 | 40 | 35.2 / 32.8 | 52.8 / 49.2 | 1.0 |
| 40G21.1 | 3~ | 380 | 1.5 | 40 | 35.2 / 39.4 | 57.2 / 55.8 | 1.0 |
| 40G21.1S | 1~ | 220 | 1.5 | 40 | 35.2 / 39.4 | 57.2 / 55.8 | 1.0 |
| 40G21.5 | 3~ | 380 | 2.0 | 40 | 44.0 / 45.9 | 79.3 / 59.1 | 1.0 |
| 40G22.2 | 3~ | 380 | 3.0 | 40 | 44.0 / 72.2 | 88.1 / 85.3 | 1.0 |
| 50G23.7 | 3~ | 380 | 5.0 | 50 | 66.0 / 82.0 | 110.1 / 98.4 | 1.5 |
| 50G25.5 | 3~ | 380 | 7.4 | 50 | 66.0 / 124.7 | 110.1 / 137.8 | 2.5 |
SF float-switch codes are current electrical configurations, not additional published hydraulic rows.

40 MM STANDARD / S · 0.75-1.1 KW
40G2.75 / 40G2.75S / 40G21.1 / 40G21.1S
One of five content-distinct catalog images; the listed exact codes share this assignment.
40 MM SF FLOAT SWITCH · 0.75-1.1 KW
40G2.75SF / 40G21.1SF
One of five content-distinct catalog images; the listed exact codes share this assignment.
40 MM · 1.5-2.2 KW
40G21.5 / 40G22.2
One of five content-distinct catalog images; the listed exact codes share this assignment.
50 MM · PUBLISHED 3.7 KW
50G23.7
One of five content-distinct catalog images; the listed exact codes share this assignment.
50 MM · 5.5 KW
50G25.5
One of five content-distinct catalog images; the listed exact codes share this assignment.Configurations
Available 50 Hz / 60 Hz electrical configurations for each model.
Counted page codes are the base and S forms (8 codes × both frequencies = 16 records). Matching SF float-switch codes (40G2.75SF, 40G21.1SF) are not added to this count. Raw outlet gaps and published/catalog differences remain visible.
| Exact code | Hz | Phase | Voltage V | Power HP | Outlet mm | Rated flow / head GPM / ft | Max flow / head GPM / ft | Drawing |
|---|---|---|---|---|---|---|---|---|
| 40G2.75 | 50 | 3~ | 380 | 1.0 | - | 35.2 / 32.8 | 52.8 / 48.9 | View |
| 40G2.75 | 60 | 3~ | 380 | 1.0 | 40 | 35.2 / 32.8 | 53.3 / 48.9 | View |
| 40G2.75S | 50 | 1~ | 220 | 1.0 | - | 35.2 / 32.8 | 52.8 / 49.5 | View |
| 40G2.75S | 60 | 1~ | 220 | 1.0 | 40 | 35.2 / 32.8 | 52.0 / 48.9 | View |
| 40G21.1 | 50 | 3~ | 380 | 1.5 | - | 35.2 / 39.4 | 58.6 / 56.4 | View |
| 40G21.1 | 60 | 3~ | 380 | 1.5 | 40 | 35.2 / 39.4 | 57.2 / 54.8 | View |
| 40G21.1S | 50 | 1~ | 220 | 1.5 | - | 35.2 / 39.4 | 58.1 / 56.4 | View |
| 40G21.1S | 60 | 1~ | 220 | 1.5 | 40 | 35.2 / 39.4 | 57.2 / 55.1 | View |
| 40G21.5 | 50 | 3~ | 380 | 2.0 | - | 44.0 / 45.9 | 79.3 / 58.7 | View |
| 40G21.5 | 60 | 3~ | 380 | 2.0 | 40 | 44.0 / 45.9 | 79.3 / 57.4 | View |
| 40G22.2 | 50 | 3~ | 380 | 3.0 | - | 44.0 / 72.2 | 88.1 / 85.6 | View |
| 40G22.2 | 60 | 3~ | 380 | 3.0 | 40 | 44.0 / 72.2 | 88.1 / 85.0 | View |
| 50G23.7 | 50 | 3~ | 380 | 5.4 | - | 66.0 / 82.0 | 110.1 / 98.1 | View |
| 50G23.7 | 60 | 3~ | 380 | 5.4 | 50 | 66.0 / 82.0 | 106.1 / 96.1 | View |
| 50G25.5 | 50 | 3~ | 380 | 7.4 | - | 66.0 / 124.7 | 107.9 / 137.8 | View |
| 50G25.5 | 60 | 3~ | 380 | 7.4 | 50 | 66.0 / 124.7 | 105.7 / 138.4 | View |
Current catalog differences: all ten 50 Hz outlet fields are empty. Both 50G23.7 records state 5.36 HP while published data states 4.96 HP. Published data lists 110 GPM maximum flow for 50G23.7 and 50G25.5; current records state 110 / 106 and 108 / 106 GPM at 50 / 60 Hz. Confirm before quotation.
Representative catalog drawing · 50G25.5 · 50 HzConstruction
Cast-iron body, high-chrome grinder blades.
- Discharge / pump body
- Cast iron / cast iron
- Motor body / impeller
- Cast iron / cast iron
- Rotational / stationary blade
- High chrome alloy / high chrome alloy
- Rotor shaft
- AISI 420 stainless steel
- Bearings
- Ball bearings
- Mechanical seal
- SiC-SiC / carbon-ceramic
SOURCE & REVIEW
Evidence stays tied to this G entry.
Published source
MEUDY sewage pump catalog 2026.6.6, printed pages 74-77 with specifications, grinding examples, materials, 50/60 Hz curves and R, Y and Z dimensions.
Current catalog
Sixteen counted frequency records come from current English G base and S codes; SF float options remain outside the count.
Confirmation
The 50G23.7 power conflict, maximum-flow differences, empty 50 Hz outlets, certification scope and North American suitability require confirmation.
G SERIES FAQ
Selection questions answered from evidence.
How many models are in the G 0.75-5.5 kW 2P range?
Published data groups eight hydraulic selections in this G entry. Counted page codes are the base and S forms (8 codes, 16 frequency records). Matching SF float-switch codes 40G2.75SF and 40G21.1SF remain outside that count.
What do the S and SF codes mean on this page?
Published data table identifies the S rows as single-phase 220 V and explicitly states that G...SF is single phase with a float switch. No broader suffix rule is inferred for other families.
Does every current G configuration have both frequencies?
Yes. Each of the ten matching catalog codes currently has one 50 Hz record and one 60 Hz record. The page keeps their measured values separate even where published data uses one combined row.
Why is 50G23.7 power flagged?
Published data identifies 50G23.7 as 4.96 HP, while both current catalog records state 5.36 HP. Confirm the approved rating before quotation.
Is the G 7.5-11 kW range included here?
No. Published data starts G 7.5-11 kW 2P as a separate product entry on the following pages, so 50G27.5 and 50G211 are not merged into this page.
Continue from published data to a reviewed selection