GM 50
Submersible sewage and drainage pumps.
- Close coupled electric submersible pumps.
- GMC: with single-channel impeller.
- GMV: with free-flow (vortex) impeller.
- Double mechanical shaft seal with interposed oil chamber, to protect against dry-running.
Technical Specifications
Flow
6 / 48
mc / h
Head
1 / 17.3
m
Power
0.75 / 2
kW
Applications
For domestic or industrial waste water, dirty water with solids up to 45 mm grain size for GMC and 50 mm for GMV, for liquids which are compatible with the pump materials.
Operating conditions
- Maximum liquid temperature: 35 °C
- pH value: 6-11.
- Maximum immersion depth: 10 m (with suitable cable length).
- Continuous duty (with submerged motor).
Features
- Safety: The double mechanical seal with oil chamber ensures safe separation separating the motor from water and providing further protection against accidental operation when dry.
- Reliable: The lower double ball bearing ensures high reliability under all operating conditions.
- Protection:
The three-phase motors are equipped with integrated thermistors, which provide the motor with thermal protection. The motor cable is pre-wired to enable the user to connect directly to a control panel, providing easier installation. - Flexible installation: The availability of the pump casing with horizontal or vertical flanged ports allows the installation of pumps in all pits and wells, both small and large sizes. Installation is also possible with a duck foot coupling.
| Brands | Calpeda |
|---|---|
| Category Top Level | Building Services |
Related products
GX ZERO
Submersible clean water pumps
- Single-impeller submersible pumps in chrome-nickel stainless steel, with vertical delivery port and suction non-return valve.
- Suction capability up to 1 mm from the bottom.
Motor cooled by the pumped water passing between the motor jacket and the external jacket. - Double shaft seal with oil chamber.
- The pump is fitted with a suction non-return valve which, during operation, allows to manually move the pump to several points in the room and draw water up to 1 mm avoiding that the pump loses its priming.
GQV, GQS
Submersible sewage and drainage pumps.
- Single-impeller submersible pumps, with free-flow (vortex) impeller.
- GQS: with vertical threaded delivery port G 1 1/2″ or G 2″.
- GQV: with horizontal G 2” or G 2”1/2 threaded delivery port and with DN 50 or DN 65 flanged delivery port.
- Double mechanical shaft seal with interposed oil chamber, to protect against dry-running.
GQN
GEO
Automatic waste water collecting and lifting station.
- High-density polyethylene tank, resistant to corrosion, with minimum overall dimensions.
- – GEO 40 single tank with 40 liter nominal capacity for the installation of a GXRM type.
- – GEO 230 single tank with 230 liter nominal capacity for the installation of an electropump type GM 10, GQ, GX or GM series.
- – GEO 500 double tank with 500 liter nominal capacity for the installation of two electropumps type GM 10, GQ, GX or GM series.
- Pipe kit for electropump connection.
- Two possible installation, at ground level or underground.
- For underground installation, extentions can be used.
- Easy pump access through a cover fixed with screws.
GEOTRIT-GEOCLEAN-GEOCOMP
Macerating pumping system.
GEOCLEAN
- GEOCLEAN makes the addition of a domestic kitchen or utility room easy even when below or distant from a drain.
- The system has a clapet valve and it cannot be used with waste waters.
- GEOCLEAN is provided with flexible sleeves, elbow, metal hose clips, plugs.
GEOCOMP
- Macerating pumping system. It is possible to install a complete bathroom in a basement conversion or loft extension.
- The GEOCOMP macerating system is installed in a case specifically designed for horizontal outlet spigots.
- Installed and used correctly, this unit will give consistent and reliable service.
The system has a grinder pump, clapet valve and carbon filter. - GEOCOMP is provided with flexible sleeves, elbow, metal hose clips.
GEOCLEAN
-
- Lifting station for clean water.
- GEOCLEAN makes the addition of a domestic kitchen or utility room easy even when below or distant from a drain.
- The system has a clapet valve and it cannot be used with waste waters.
- GEOCLEAN is provided with flexible sleeves, elbow, metal hose clips, plugs.
MPC
NM, NMS
NM, NM4 Close-coupled centrifugal pumps; electric motor with extended shaft directly connected to the pump up to 22 kW (15 kW for NM4).
NMS, NMS4 Close-coupled centrifugal pumps, new bracket construction for standard motors (stub-shaft construction) with integrated thrust bearing.
Rated speed of rotation (50 Hz):
NM, NMS ≈ 2900 rpm.
NM4, NMS4 ≈ 1450 rpm.
Pump casing with axial suction and radial delivery on top, main dimensions and performance according to EN 733 with additional sizes for completion. (NMS4 80/400).
N 40-250C version with pump casing and lantern bracket in cast iron.
BNM(S), BNM(S)4: version with pump casing and lantern bracket/casing cover in bronze.
The pumps are supplied fully painted.
Version with frequency converter (on request)

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