Description
The VM-1125 Vertical Non-Metallic Monoblock Pump is a corrosion-resistant vertical immersion pump for acids, alkalis, dyes, intermediates, plating solutions and scrubber liquors. The pump casing sits submerged in the tank or sump while the motor stays above the liquid level, so there is no shaft seal in contact with the pumped liquid at the casing.
Wetted parts in polypropylene (PP) or PVDF suit continuous chemical transfer, acid loading and unloading, electroplating circulation, filter press feed and corrosive gas scrubbing. The monoblock drive mounts directly on the tank cover or mounting plate, giving a compact installation with no coupling alignment.
Technical Key Features
- Vertical immersion design: motor above the liquid, hydraulics submerged.
- Monoblock motor-pump assembly with no coupling alignment.
- Non-metallic wetted parts in PP or PVDF for acids and alkalis.
- Mounts directly on tanks, sumps, scrubbers and process vessels.
- Minimal floor space and simple installation.
- Column length selected to suit tank depth.
Service Overview
| Parameter | Value |
|---|---|
| Equipment | Vertical non-metallic monoblock immersion pump |
| Fluid | Acids, alkalis, dye intermediates, scrubber liquors, electroplating solutions |
| Service Nature | Corrosive, chemically aggressive transfer or circulation |
| Operating Mode | Tank-mounted vertical operation; continuous or intermittent duty |
Specifications
| Item | Min | Max | Typical / Notes |
|---|---|---|---|
| Flow | — | 40 m³/h (176 US gpm) | Final flow from the selected pump curve |
| Head | — | 22 m (72 ft) | Final head from the selected pump curve |
| Temperature (PP) | 0°C (+32°F) | +70°C (+158°F) | Polypropylene wetted parts |
| Temperature (PVDF) | — | +90°C (+194°F) | PVDF wetted parts |
| Column Length | 500 mm | 1000 mm | 500 / 800 / 1000 mm; other lengths on request |
| Speed | — | 2900 rpm | 2-pole, 50 Hz motor |
Materials
| Component | Standard Material | Optional Material | Comment |
|---|---|---|---|
| Pump Casing / Column | PP | PVDF | Selected to suit chemical compatibility and temperature |
| Impeller | PP | PVDF | Open or semi-open design to suit liquid cleanliness |
| Shaft Protection | PP / PVDF sleeve | — | Isolates the metallic shaft from the pumped liquid |
| Mounting Plate | PP | PVDF / coated steel | To suit tank cover or mounting arrangement |
Applications
- Hydrochloric acid loading and unloading stations
- Dyes, alkalis and intermediate chemical plants
- Acid regeneration plants and acidic effluent systems
- Electroplating baths, rinse systems and filter press feed
- Scrubbing of corrosive gases
- Pharmaceutical process transfer and utility circulation
Operating Limits
| Parameter | Value |
|---|---|
| Flow | Up to 40 m³/h (176 US gpm) |
| Head | Up to 22 m (72 ft) |
| Temperature | 0°C to +70°C (+32°F to +158°F) in PP; up to +90°C (+194°F) in PVDF |
| Speed | 2900 rpm (50 Hz) |
| Column Length | 500, 800 or 1000 mm; other lengths on request |
Product image is an illustrative rendering; actual construction is supplied to the approved drawing.



