FSRM SERIES · SUBMERSIBLE DRAINAGE PUMP
Start at five millimeters.
Drain down to one.
A compact single-phase residue drainage pump for construction sumps, utility pits, storage tanks and wash-water drainage, with selectable vertical or inclined discharge direction.
● 2 performance selections · 1 counted code · 2 frequency records
POWER0.5-1.0 HP
MAX FLOW52.8 GPM
MAX HEAD54.1 ft
RESIDUAL LEVEL1 mm
Series Overview
Key specifications shared across the FSRM series.
Published data states that FSRM can start when water reaches 5 mm and continue until the level drops to 1 mm. Its compact body uses wear-resistant rubber and ductile-iron components, while the discharge can be set vertically or inclined to reduce hose folding.
Model Range
Compare hydraulic performance across all available power ratings.
FSRM2.75(F) remains visible because it is a published model. No current catalog record, product image or selector configuration is claimed for it.
CURRENT CATALOG IMAGE
FSRM2.4
Standard current catalog configuration.
CURRENT CATALOG IMAGE
FSRM2.4F
Float-switch catalog image retained for reference; float codes are not counted table rows.| Selection | Power kW / HP | Outlet mm | Rated current A | Rated flow / head GPM / ft | Max flow / head GPM / ft | Passage mm |
|---|---|---|---|---|---|---|
| FSRM2.4(F) | 0.4 / 0.55 | 50 | 3.0 | 26.4 / 26.2 | 44.9 / 39.4 | 3 |
| FSRM2.75(F) | 0.75 / 1 | 50 | 5.0 | 30.8 / 36.1 | 52.8 / 54.1 | 3 |
| Model | Outlet mm | A / A1 / D mm | H / B mm | N.W. / G.W. kg | Packing mm |
|---|---|---|---|---|---|
| FSRM2.4(F) | 50 | 226 / 201 / 160 | 304 / 112 | 12.8 / 13.8 | 360×245×255 |
| FSRM2.75(F) | 50 | 226 / 201 / 160 | 344 / 112 | 15.3 / 16.5 | 405×245×255 |
FSRM2.75(F) has published performance and dimensions but no current English catalog record. Confirm availability before quotation.
Configurations
Available 50 Hz / 60 Hz electrical configurations for each model.
Counted page code FSRM2.4 publishes both 50 Hz and 60 Hz. Single-phase models can be configured with a float switch; FSRM2.4F is not a separate table row. The table does not create rows for the missing FSRM2.75 performance selections. Phase / V shows 115 V on 60 Hz single-phase rows (NA default).
| Exact code | Hz | Phase / V | Power HP | Rated flow / head GPM / ft | Max flow / head GPM / ft | Outlet / passage mm | N.W. kg | Cable m | Drawing |
|---|---|---|---|---|---|---|---|---|---|
| FSRM2.4 | 50 | 1 / 220 | 0.5 | 26.4 / 26.2 | 47.6 / 39.7 | 50 / 3 | 12.8 | 8 | View |
| FSRM2.4 | 60 | 1 / 115 | 0.5 | 26.4 / 26.2 | 44.9 / 39.4 | 50 / 3 | 12.8 | 8 | View |
Published data gives FSRM2.4(F) as 44.9 GPM maximum flow, 39.4 ft maximum head and 12.8 kg. Current 50 Hz FSRM2.4 records publish 47.6 GPM and 39.7 ft. Current 60 Hz performance matches published data maximum values. Float-switch catalog weight for FSRM2.4F is 13.1 kg when that option is configured.
Construction & materials
Cast-iron body with low-level residue intake.
Published data specifies a ductile-iron impeller, while current catalog records describe the impeller as grey cast iron. Confirm the supplied impeller material before quotation.
- Pump body
- Cast iron
- Impeller
- Ductile iron (published)
- Sand guard / gaskets
- NBR
- Motor body
- Cast iron
- Rotor shaft
- AISI 420 stainless steel
- Shaft sleeve
- AISI 420 stainless steel
- Mechanical seal
- Ceramic-SiC / carbon-ceramic
- Cable
- H07RN-F
FSRM FAQ
Low-water operation and source boundaries.
How low can the FSRM series drain?
Published data states that pumping can start at a water level of 5 mm or more and continue until the level falls to 1 mm.
What does the F suffix mean for FSRM?
the published footnote defines FSRM as single phase and FSRM...F as single phase with a float switch.
Which FSRM codes are in the current English catalog?
Counted page codes include FSRM2.4 at 50 Hz and 60 Hz. Single-phase models can be configured with a float switch; FSRM2.4F is not a separate counted table row. The catalog does not contain an FSRM2.75 or FSRM2.75F record.
Why is FSRM2.75 shown without a current selector record?
FSRM2.75(F) is a published hydraulic selection and dimension row, so it remains visible. Under the source rule, a missing current catalog record is disclosed rather than invented.
Why do the FSRM2.4 maximum values differ by source?
Published data table lists 44.9 GPM and 12 m. Current 50 Hz records publish 47.6 GPM and 12.1 m, while current 60 Hz records match published data table values.
Can single-phase FSRM be configured with a float switch?
Yes. Single-phase models can be configured with a float switch. Trailing-F float codes are not listed as separate counted rows.
Need low-level residue drainage?