MONSOON PROFESSIONAL

Gravity Fed System or Combi and pressurised System (Unvented).

  • Extremely quiet
  • Boosts water pressure up to 4.2 bar
  • Output flow rate up to 78 litres/min
  • Intelligent variable speed pump control
  • Suction lift up to 6 metres
  • Quiet operation
  • Automatic on/off switching
  • High quality pump and construction
  • Integral expansion vessel
  • Dry run protection
  • Automatic anti-seize function
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Product specification

Product codeProduct codes for the UK and Ireland models47729
GeneralGTIN5050400477297
Warranty5 years (subject to conditions)
WRASWRAS-approved product
KiwaKUKreg4 certified
Conformity certificationUKCA | CE
FeaturesPump typeVariable Speed Centrifugal Multistage
Pump controlPressure transducer | Flow sensor | Pressure vessel
Dry run protection
Water anti-freezing protection
Integrated inlet strainer
Typical noise55 dB(A)
CONSTRUCTION
Enclosure protectionIP55
Pump bodyPA66 GF30 (Glass Re-enforced Polymer)
ImpellerPPO GF30 (Glass Re-enforced Polymer)
Pump head mechanical sealNBR / Silicon carbide/ Alumina ceramic/SS304
PERFORMANCE
Maximum head - closed valve4.2 bar / 43 metres
Maximum flow78 l/min
Maximum static inlet pressure3 bar / 31 metres
Maximum working pressure*800 kPa / 8.0 bar
Maximum ambient air temperature40 °C (Continuous)
Min / Max water temperatureMin 4°C / Max 23°C
Maximum suction lift6 metres (foot-valve fitted)
CONNECTIONS
Pump connections (Inlet)1” F (DN25)
Pump connections (Outlet)1” F (DN25)
Connection adaptors (supplied)G1 M - 28 mm/1” Universal with 28mm (UK) and 1” (ROI) olives
MOTOR
TypePermanent magnet variable frequency
Duty ratingContinuous (S1)
ELECTRICAL
Power supply (Vac/Ph/Hz)220-240 V a.c. / 1 / 50 Hz
Power consumption - P1600 watts
Current - full load2.8 amps
Fuse rating (amps)10 amps
Power cable length1.5 metres
DIMENSIONS
Length273 mm
Width188 mm
Height - excluding hoses345 mm
WEIGHT
Weight - excluding fittings8.04 Kg
More information

MONSOON PROFESSIONAL is a fully WRAS-approved, variable speed booster pump engineered for modern homes and small businesses.

Low water pressure can turn everyday moments into daily frustrations, such as weak showers, taps that slow down when someone else turns one on, inconsistent flow when appliances are running or even a brand new bathroom or kitchen that doesn’t perform as it should.

If your home is supplied by a cold-water storage tank and struggles to maintain consistent pressure, especially when multiple outlets are in use — MONSOON PROFESSIONAL is designed to fix that. It automatically adjusts to demand, meaning whether one tap is running or the whole household is in action, you get smooth, powerful, consistent pressure every time. No fluctuations. No surprises. Just reliable performance.

  • Delivers up to 4.2 bar pressure
  • Flow rates up to 78 litres per minute
  • Designed for cold-water storage tank systems
  • Suitable for combi boilers and pressurised hot water cylinders
  • Exceptionally quiet operation

Its advanced variable speed technology maintains constant pressure across every outlet — even under high demand.

Built-in protections guard against dry running, overheating and overloading, while the compact all-in-one design makes installation straightforward.

Extensively tested in real-world conditions, it’s designed for long-term reliability with minimal maintenance.