Vertical Immersible PC Pumps
The VD Range is made to empty pits, basins and containers — efficiently and with ease. It handles demanding applications including abrasive and corrosive media, with low to high viscosity, and is uniquely positioned as a reliable solution for critical suction conditions and where installation space is limited.
DutyEmpties Pits, Basins & Containers
DepthsUp To Fully Submersible
SealingGas-Tight Domed Lid
MediaAbrasive & Corrosive
Underground Vertical Immersible Design
ROTOMAC™ VD Range
Some duties have nowhere to put a horizontal pump. A sump, a collection pit, an underground basin — the liquid sits below floor level, the suction lift is poor, and the footprint available is a hatch, not a plinth. The VD Range is built for exactly that.
The pump hangs vertically into the vessel, with the wet end submerged and the drive above. Suction lift stops being the limiting factor, and the whole installation occupies the space the pit already provides. Wetted parts are specified for abrasive and corrosive media across the low to high viscosity range.
Built to the depth you need. The VD is available in different designs for different immersion depths — all the way through to fully submersible pumps. Pressure casing length is specified per application, so the pump is matched to the vessel rather than the vessel worked around the pump.
Three Problems It Solves
The VD is specified where a conventional horizontal installation runs into a wall — on suction conditions, on space, or on containment.
Critical Suction Conditions
Installing the pump inside the vessel makes it possible to increase the NPSHa for liquids with low vapor pressure — without cavitation.
Limited Installation Space
The pump occupies the vessel it empties. No plinth, no separate suction line run, no additional floor footprint to find.
Closed Systems & Containment
Suitable for installation in closed systems and compliant with environmental protection regulations thanks to its gas-tight domed lid.
Details & Configuration
Everything you need to know about the VD vertical immersible pump — from core benefits to full technical configuration options.
Gentle Conveying
Low-pulsation, constant flow rate for consistent product quality.
More Flexible
It is possible to increase the NPSHa for liquids with low vapor pressure without cavitation — by installing the pump in a vessel.
More Flexible
Suitable for installation in closed systems and compliant with environmental protection regulations thanks to its gas-tight domed lid.
Different Installation Depths
Available in different designs for different immersion depths — all the way through to fully submersible pumps.
Versatile Applications
Ideal for numerous applications in the chemical industry, but also for certain conveying processes in the food, pharmaceutical and cosmetics industries.
- Discharge Port
- Threaded connections to BSP standards.
- Stator
- Available in abrasion resistant materials as well as food-grade materials.
- Coupling Rod
- Improved design for power transmission along long distances.
- Pressure Casing
- With connections for pressure / vacuum gauge and mounting plate for fixing the pump. Length according to application specification.
- Rotor
- Wear resistant and corrosion-resistant materials. Even hardened materials are available for abrasive applications.
- Conventional GeometrySuitable for high pressure applications.
- Extended GeometryExtended life due to larger sealing line.
- Universal Joint
- High strength cardan joint allows transmission of torque with minimal wear and tear. The joints are encapsulated and grease filled to protect from contamination from media. Even in case of vacuum the joints are protected, streamlined to reduce NPSHr & turbulence.
- Shaft Sealing
- Single-acting mechanical seal, independent of direction of rotation, with quench and supply tank to protect the sliding surface against dry running.
- Drive
- Geared motors, variable speed drives or frequency controlled motors of all major manufacturers, directly flanged to the pump without additional couplings or guards. Covers made of stainless steel are available.
- Overpressure Protection
- Many options are offered, such as pressure gauge switches which switch off the pump as soon as the pressure reaches the pre-set pressure, protecting the pump from damage. A pressure relief valve can also be offered.
Technical Specifications
Typical Applications
Wherever a pit, basin or container has to be emptied reliably — with abrasive or corrosive media, and limited space to work in.
Chemical Industry
Emptying reactor sumps, collection pits and drain vessels.
Water & Wastewater
Sump drainage, sludge pits and recovery basins.
Food Processing
Certain conveying processes with food-grade stator materials.
Pharmaceutical
Contained transfer from closed vessels and collection tanks.
Cosmetics
Batch vessel emptying and viscous product transfer.
Mining & Minerals
Abrasive slurry removal from settling pits and drain sumps.
Pulp & Paper
Broke pits, white water basins and residue collection.
Environmental & Energy
Digester sumps, leachate pits and contained drainage duty.
Need a VD Immersible Pump?
Share your vessel depth, media type, flow rate and discharge pressure — our engineers will confirm the right immersion design, pressure casing length and wetted materials.
Email Us
contact@rotomac.orgCall Us
+91 7522 002204 (Sales)Head Office
D-4a, Panki Industrial Area, Site-1, Kanpur – 208022, India