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 |
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- 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.
GQR
Submersible drainage pumps.
- Single-impeller submersible drainage pump, with open impeller.
- GQR: with vertical threaded delivery port (G 1 1/2).
- GQR 10 32: with horizontal flanged and threaded delivery port (DN 32, PN 6 – G 1 1/2).
- Double mechanical shaft seal with interposed oil chamber, to protect against dry-running.
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.
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.
NMP
MPC
NM, NMD
Close-coupled, centrifugal pumps with screwed connections; electric motor with extended shaft directly connected to the pump.
NM: single-impeller
NMD: with two back-to-back impellers (with axial thrust balancing).
Connections: threaded ports ISO 228/1 (BS 2779).
NM, NMD: version with pump casing and lantern bracket in cast iron.
BNM, BNMD: version with pump casing and lantern bracket in bronze.
The pumps are supplied fully painted.
Centrifugal pumpsn≈1450 1/min
Close-coupled centrifugal pumps; electric motor with extended shaft directly connected to the pump up to 15 kW, new bracket construction for standard motors (Stub-shaft construction) from 18,5 to 75 kW with integrated thrust bearing.
Pump casing with axial suction and radial delivery on top, main dimensions and performance according to EN 733 with additional sizes for completion.
NM(S)4: version with pump casing and lantern bracket in cast iron.
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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