Pedrollo DG-Blu Automatic pressurization system with inverter
Pedrollo DG-Blu 3 Automatic Variable Speed Booster Pump
- Established 1975
- Trusted by thousands of customers
DG-BLU 3 is a cutting-edge, automatic pressurization system featuring a high-efficiency, self-priming pump with multiple impellers. It comes complete with a storage tank, pressure
and flow sensors, and a check valve, all designed to work quietly and efficiently.
Designed to produce an efficient flow of 80 litres/min at 3bar.
This compact powerhouse stands out for its advanced electronic inverter control, which intelligently manages the system performance by:
– keeping the pressure constant according to water usage;
– monitoring hydraulic and electrical conditions to safe guard against malfunctions;
– allowing for integration with another DG-BLU unit through an optional expansion card;
– adapting seamlessly to any type of pressurization system, even existing ones;
– reducing electrical consumption with lower startup and running currents, achieving greater energy efficiency.
More about this product
TECHNICAL DATA
Power supply: 1~ 230 V ± 10%
Frequency: 50/60 Hz
Insulation: class F
Maximum current absorbed:
– 7.5 A DG-BLU 3
– 10 A DG-BLU 5
Maximum power input P1:
– 1.0 kW DG-BLU 3
– 1.5 kW DG-BLU 5
Protection rating: IP X4
Set point from the factory: 3 bar
1.5 metres cable with Schuko plug
APPLICATION LIMITS
• Manometric suction head up to 8 m
• Liquid temperature between 0 °C and +40 °C
• Ambient temperature between 0 °C and +40 °C
• Max. port pressure 4 bar
• Max pressure 10 bar
• Continuous running duty S1
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Data Sheet PDFDownload
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
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Frequently Asked Questions
Quick answers to common questions about the Pedrollo DG-Blu 3 Automatic Variable Speed Booster Pump. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What is a mains pressure boosting system?
A mains pressure boosting system increases the pressure and flow of water from the incoming mains supply into a property. It typically combines a pump and a storage or expansion tank, drawing water from the mains and delivering it to taps, showers and appliances at a stronger, more consistent pressure. They are used where the incoming mains is too weak to serve modern outlets reliably.
When do I need a mains booster pump?
You normally need a mains booster if static mains pressure is below 1.5 to 2 bar, if showers run weakly when other taps are open, or if combi boilers struggle to deliver hot water. Anglian Pumping recommends checking static pressure at the stop tap before specifying a system, then choosing a model rated for the number of bathrooms and outlets in the property.
What size mains booster do I need for my home?
Sizing depends on the number of bathrooms, the type of fittings and the static mains pressure. As a guide, a 1 to 2 bathroom property with combi boiler or single shower often needs 1.6 to 3 bar boost. A 2 to 3 bathroom property typically needs 3 to 4.5 bar with an integral break tank. Larger homes need a tank-and-pump system such as the DAB Esybox with Esytank or a Powertank set.
What is a water booster pump?
A water booster pump increases the pressure of an existing water supply to give stronger flow at taps, showers and appliances. It can be a small inline pump fitted to the incoming mains, or a larger pump and tank set that draws from a break tank to feed the whole house. Boosters do not create water – they raise the pressure of the water already coming in.
What is the difference between an inline booster and a tank-and-pump booster?
An inline booster connects straight onto the incoming mains and is limited to 12 litres per minute under UK water regulations – examples include the Salamander HomeBoost and WaterBoost WB-Compact. A tank-and-pump booster, such as the Grundfos Home Booster or DAB Esybox with Esytank, draws from a break tank and can deliver much higher flow rates for larger homes with multiple bathrooms.
What is a variable speed booster pump?
A variable speed booster uses an inverter to adjust pump speed in real time to match demand. It maintains constant pressure as outlets open and close, runs more quietly than a fixed-speed pump and typically saves up to 50 per cent of the energy a fixed-speed equivalent would use. The DAB Esybox, DAB Esybox Mini 3 and Grundfos Scala2 are common variable speed examples.