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Home > Supplier Companies > TechnoSub > Articles > Booster Pump Systems
TechnoSub

Booster Pump Systems

Jul 13, 2020

 
CR pump fitted with isolating valves, discharge manifold,  pressure transducer, pressure gauge and diaphragm tank.
 
A Hydro Solo-E system consists of a CR pump which is a non-self-priming, vertical multistage centrifugal pump. The pumps are availables with a Grundfos standard motor (CR pumps) or a frequency-controlled motor (CRE pumps). All pumps are equipped with a maintenance-free cartridge mechanical shaft seal.
 
Construction
  • On the discharge side of the pump is fitted a stainless steel discharge pipe, a check valve, an isolating valve and a pressure transducer
  • A pressure gauge is also present in the system to measure the discharge pressure
  • A frequency controlled motor (Grundfos MLE motor) drives the CR pump for 1 phase 230V (1/2-1 ½ Hp) and 3 phase 460V (2-10 Hp) versions of Hydro Solo-E booster sets
  • All other 3 phase versions of Hydro Solo-E booster sets come with a CR pump driven by an externally mounted Variable Frequency Drive (VFD)
 
Installation
  • A Hydro Solo-E booster set must be installed in a well ventilated room to ensure sufficient cooling for the pump. Hydro Solo-E is not suitable for outdoor installation
  • The booster set should be placed with sufficient clearance around it
  • 3 phase versions must have a disconnect ON/OFF switch for the supply voltage, which is not provided as a standard item with the unit. The main components of the Hydro Solo-E include the pump, motor and the Variable Frequency Drive
  
Motor
 
Grundfos standard motors – With external VFD
  • 3 x 208-230V, 3 x 460V (15-30Hp), 3 x 575V
  • CR, CRI and CRN in a Hydro Solo-E system pumps are fitted with a Grundfos specified motor. The motors are all heavy-duty 2-pole, NEMA C-frame
 
Frequency-controlled motors – MLE motors (integrated VFD)
  • 1 x 230V and 3 x 460V (2-10Hp)
  • CRE and CRIE pumps in a Hydro Solo-E system are fitted with a totally enclosed, fan-cooled, 2-pole frequency-controlled motor
 
Overview of the External Variable Frequency Drive (VFD)
 
Benefits
  • Eliminates control valves and problematic pressure storage tanks
  • Harmonic distortion protection built in
  • Lower energy consumption
  • Less pump noise
  • Easy to set up and operate
  • Comprehensive protection of drive, motor and pump Equipment
  • Reduced maintenance
  • Eliminates current in-rushes on the AC line
  • Protection from extreme voltage and temperature conditions
 
Features highlights
  • Sleep mode automatically stops and starts the drive as determined by user-programmed levels at low demand - saves additional energy and reduces wart on drive pump components
  • Electronic thermal relay provides motor overload protection
  • AEO (Automatic Energy Optimizer) reduces energy consumption and audible motor noise
  • Fast response time for control inputs
  • Standard protection features includes phase-to-phase short; phase-to-ground short; input and output protection
  • Built-in DC link introductors reduce hormonics
  • Built in H-O-A (Hand-Off-Auto) switch function on keypad
  • Alarm, warning and on LEDs indicate drive status

 

Two to six CR(E) pumps connected in parallel and mounted on a base frame provided with a control cabinet and all the necessary fittings.
 
Grundfos Hydro MPC BoosterpaQ booster sets are designed for transfer, pressure boosting and circulation of water in:
  • Domestic water pressure boosting
  • High rise buildings, hotels, and hospitals
  • Irrigation
  • Industry
  • Municipal water transfer
  • HVAC
 
As standard, Hydro MPC booster sets consist of two to six CR(E) pumps connected in parallel and mounted on a base frame provided with a control cabinet and all the necessary fittings.
 
Most of the booster sets are available with either CR pumps and/or CRE pumps.
Hydro MPC booster sets are divided into many groups based on control variants.
 
Hydro MPC-E
Booster sets with two to six CRE pumps. The terminology CRE means CR pump that includes an integrated variable frequency drive (VFD)/motor with sizes from 1 to 10 Hp.
 
Hydro MPC-E(CUE)
Booster sets with two to six CR pumps, each connected to external CUE VFD.
 
Hydro MPC-F
Booster sets with two to six CR pumps connected to one external VFD. The speed-controlled operation alternates between the pumps of the booster set.
 
Hydro MPC-S
Booster sets with two to six constant speed CR pumps
 

Source: https://www.technosub.net/en/products/booster