Cavern pumps

Cavern Pumps

Designed for extremes. Engineered for safety.

PLEUGER Cavern Pumps are purpose-built for the toughest underground storage demands. Designed as single or multi-stage centrifugal pumps, they deliver reliable performance in critical environments, including explosive atmospheres.

With the motor positioned below the pump and the suction area above, these units ensure efficient operation under extreme conditions.

For added safety, power cables are protected in water-filled pipes for water-filled motors or armoured for oil-filled options – engineered to meet the most specialized requirements with confidence and precision.

Single-stage or multi-stage centrifugal pumps.
Water-filled motors. Oil-filled option.
Available from 6" in standard configuration. Engineered to order for specific requirements.

Features.

Versatile pump designs

- Designed for explosive atmosphere conditions.
- Flanged bowl designs starting from 6″ (P, Q, K, S series).
- Tie-rod designs for 6″–8″ pumps (N series).
- Radial, semi-axial, and axial hydraulic configurations.
- Individual customization to duty-point requirements.
- Improved internal cooling system for 10” motor size and larger.
- Non-return valves and non-return-flaps in different connection sizes and designs.

Customizable motors

- Rewindable motors ranging from 6″ upwards.
- Options include synchronous Permanent Magnet Motors and asynchronous induction motors.
- Standard water-filled motors; oil-filled variants available for specialized applications.
- Motors for explosive atmosphere applications.

Flexible installation

- Suitable for vertical and inclined applications.
- Improved internal cooling systems for motors 10″ and larger.

Material options

- Pump impellers available in PPE polymer, stainless steel, or Super Duplex.
- Pump bowls crafted from cast iron, NiAIBz, stainless steel 316, or Super Duplex.
- Special materials on request.

Technical details.

Discharge flow: 5 m³/h – 4500 m³/h (22 – 19,813 USGPM).
Discharge head: 7 m – 700 m (23 ft – 2,297 ft).
Non-Return Valves: Available with DIN or ANSI/ASME flange connections.
Motor options
- Motors from 6” to 50” with rewindable design.
- Water-filled motors as standard, or oil-filled motors for special applications: 5 kW – 5 MW (6.7 HP to 6,700 HP).
- Water-filled synchronous motors (Permanent Magnet Motors): 5 kW – 200 kW (6.7 to 268 HP).
- Voltage range: 230 V – 6.6 kV (11 kV on request).
- Variable Frequency Drive (VFD) compatibility.
- Motor configurations: 2-pole to 12-pole Motor Designs for 50 Hz and 60 Hz.
Multiple material options.

Customisations for special applications

Twin-shaft motors
Motors with additional/external cooling systems
Motors for special voltage requirements
Motors for special voltage requirements and to customer specifications.
Units for turbine operation and energy recuperation.
Units for hot water applications.

Pump and motor configurator.

CONFIGURE YOUR PUMP - PIA OPTIMUS

Your perfect pump and motor. Configured.

Effortlessly select and configure the ideal PLEUGER submersible pump and motor for your application. Input your parameters, and PIA OPTIMUS delivers data sheets and performance curves in a ready-to-use PDF offer template.

Advantages.

Slim Profile

Fit into small well diameters with compact designs.

Integrated engineering

Comprehensive design and manufacturing from a single source ensure optimal functionality across all components.

Global Support Network

Access to Pleuger’s worldwide service network guarantees prompt assistance wherever needed.

Maintenance-free operation

Designed for durability, these units require minimal maintenance, reducing downtime and operational costs.

Quiet and resilient

Engineered for low noise emissions, vandalism protection, and resilience against flooding (IP68) and frost, ensuring reliable performance in challenging environments.

High safety operation

Internal volume and pressure compensating motor design for high operational safety and reliability in extreme installation depths

Environmentally friendly

Eco-conscious design prioritizes sustainability without compromising performance.

Easy installation

Simplified setup process eliminates the need for complex adjustments or alignment, facilitating swift deployment.

Versatility

Versatile product sizes and designs for almost all application areas.

Applications.

Offshore and onshore operations.

Cavern storage of crude oil and refinery products
Crude oil export pump
Leak water pumps for caverns
Mining (dewatering and water supply)
Process pumps
Pumping of refinery products like diesel, gasoline, and liquid gases like LPG (Propane, Butane) and LNG

Certifications and Standards.

Compliant or exceeding standards:

Hydraulic Institute, CE and UKCA marking, API 610,
DNV GL, ABS, CSA, ATEX, ISO 9001, IP68, EAC, NORSOK,
Achilles, Silver, and customer-specific

Design Standards: NSF, API, ANSI, ASTM, EN, ISO, DIN, NORSOK, customer-specific
Hydraulic Standards: API, ANSI/HI, EN ISO, NFPA 20
Electrical Standards: IEC, IEEE, UKCA, NEMA

PLEUGER pump units are meticulously engineered to deliver exceptional performance, adaptability, and reliability.

Elevate your underground storage operations with PLEUGER Cavern Pump Units.

Our commitment to quality ensures each pump meets the highest standards, providing your operations with the efficiency and dependability required in demanding environments.