GQG
Submersible pumps with high power grinder, with horizontal flanged and threaded delivery port (DN 32 – G 1 1/2”).
Double mechanical shaft seal with interposed oil chamber, to protect against dry-running.
Technical Specifications
Flow
3 / 17
mc / h
Head
4 / 25
m
Power
0.9 / 1.5
kW
Applications
- To move water containing long filamentary materials, paper or textile material.
- They are particularly suitable for use in domestic, residential and industrial installations.
- Solid passage Ø 6 mm
Operating conditions
- Liquid temperature up to 35° C.
- Maximum immersion depth: 5 m.
- Minimum immersion depth: 300 mm.
- Continuous duty (with submerged motor).
Features
- Cable length 10 m.
- Handle in polypropylene, with frame in stainless steel.
- Ring against accidental extraction of the cable.
- Easy adjustment of the float switch: to allow the adjustment of start/stop pump levels.
- Relief valve: the pump is fitted to a relief valve for air release around the impeller granting a proper pump priming also after long standstill periods.
- The double shaft seal with oil chamber separates the motor from the water and provides further protection against accidental operation when dry.
- Maximum flexibility of connection:
- Flange DN 32 PN 6 EN 1092-2
- G 1 1/2 ISO 228
- for duck foot coupling SA-G
- Chamber with food/pharmaceutical machinery oil.
- Impeller with epoxy cataphoresis treatment for a greater protection against the rust.
- Shaft in chrome-nickel stainless steel.
- Cutting system made of HRC 60 hardness AISI 440C stainless steel.
- Pump casing and casing cover with epoxy cataphoresis treatment joined to the external paint for a greater protection against the rust.
| Brands | Calpeda |
|---|---|
| Category Top Level | Building Services |
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- GQR: with vertical threaded delivery port (G 1 1/2).
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- Double mechanical shaft seal with interposed oil chamber, to protect against dry-running.
NM, NMD
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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.
End-suction centrifugal pumps EN 733 2- and 4- pole Product Description
Single-stage end-suction centrifugal pumps, with bearing bracket.
- The electropumps N, B-N, N4, B-N4 series comply with the European Regulation no. 547/2012 in force starting from 01.01.2013.
- Nominal duty points and main dimensions in accordance with EN 733.
- Back Pull-Out construction, for simple and quick dismantling and reassembly.
- N, N4: version with pump casing and lanter bracket in cast iron.
- B-N, B-N4: version with pump casing and lanter bracket in bronze (the pumps are supplied fully painted).
- Rated speed of rotation (50 Hz): N = 2900 rpm.; N4 = 1450 rpm.
Shaft sealing
- Standardized mechanical seal in accordance with ISO 3069.
- Stuffing box seal (on request).
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