Cavern Pump Units
Manufactured to customer specification, Pleuger cavern pump units available as single-stage or multi-stage centrifugal pumps, typically coupled with water-filled motors as standard, or oil-filled motors for special applications. The motor is assembled below the pump and the suction area is located above the motor. The power supply cable is contained in a water-filled protection pipe (water-filled motors with ATEX-certificate) or for oil-filled motors, a special armoured cable is connected to the motor. The pumps are designed to ensure safe operation in explosive atmospheres.
Features
- Pumps with flanged bowl designs (starting from 6“ / P, Q, K, S – series)
- Pumps with tie-rod designs (6” – 8” / N – series)
- Pumps with radial, semi-axial and axial-design hydraulics
- Individual customization to duty point requirements
- Non-return valves and non-return-flaps in different connection sizes and designs
- Rewindable motors from 6″ motor size and bigger
- Synchronous (Permanent Magnet Motors) and asynchronous induction motors
- As standard design water-filled motors
- Oil-filled motors for special applications
- Internal volume and pressure compensating motor design
- Improved internal cooling system for 10” motor size and bigger
- Units for vertical and inclined applications
- Multiple materials available
- Pumps and motors for special applications
- Twin-shaft motors
- Motors with additional/external cooling systems
- Motors for explosive atmosphere applications
- Motors for special voltage requirements
- Motors according to customer specifications
- Units for turbine operation and energy recuperation
- Units for hot water applications
Available designs
- Cavern pump units (for explosive atmosphere applications)
Advantages
- Engineered and manufactured in-house to ensure end-to-end quality and assurance
- Worldwide operating service network
- Versatile product sizes and designs for almost all application areas
- Maintenance-free
- Internal volume and pressure compensating motor design for high operational safety and reliability in extreme installation depths
- Minimal noise emission
- Protected against vandalism
- Flood-proof (IP68) and frost-proof
- Environmentally friendly
- Easy installation without complex adjustment or alignment work
Applications
- Mining (dewatering and water supply)
- Process pumps
- Crude oil export pump
- Pumping of refinery products like diesel, gasoline and liquid gases like LPG (Propane, Butane) and LNG
- Cavern storage of crude oil and refinery products
- Leak water pumps for caverns
- Offshore und onshore
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 with DIN or ANSI/ASME flange connections
- Non-return valves with DIN or NPT flange connections
- Motors from 6” to 50” with rewindable design
- Water-filled motors as standard, or oil-filled motors for special applications: 0.37 kW – 5 MW (0.5 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 (11kV on request)
- 2-pole to 12-pole motor designs for 50 Hz and 60 Hz
- Multiple materials available
- Pump impellers in PPE plastic, bronze, stainless steel or Super Duplex
- Pump bowls in cast iron, bronze, stainless steel or Super Duplex
