BJ 40/55 (0.55kW, 230V)—IPRO pump with Water Pass 2 controller
The BJ 40/55 set with IPRO equipment is a ready-made solution for the automatic drawing and pumping of raw water, combining the IPRO BJ 40/55 pump with the intelligent Water Pass 2 controller, a glycerin-filled pressure gauge, and a five-way discharge outlet. At the heart of the set is a single-stage, self-priming centrifugal pump designed for pumping technically clean, cold raw water from private water sources and boosting pressure in the water intake and pumping system. The Venturi tube system provides high suction capacity, while the AISI 304 stainless steel body ensures the structure’s durability even under intensive use.
Who it is for
- Users of private water sources—the 1 l tank built into Water Pass 2 reduces water hammer and smooths system operation when water consumption is started and stopped.
- Water system installers—the ready-made configuration of pump + Water Pass 2 + pressure gauge + five-way outlet shortens the equipment selection process and simplifies installation.
- People looking for simple startup without programming—Water Pass 2 automatically calibrates itself to the set pressure, without requiring manual configuration of the thresholds.
- Allotments and gardens—flow rates of up to 55 l/min are suitable for supplying irrigation systems, sprinklers, and drip lines.
Applications
The BJ 40/55 set with IPRO equipment is used in systems for drawing and pumping raw water supplied from private water sources—dug or deep wells—where it ensures stable water intake parameters and effective pressure boosting. The Venturi tube system allows water to be drawn from depths of up to 9 meters, making it suitable for fluctuating water levels throughout the season. The set is not a water treatment device—if water from a private source is to be used for drinking, it must be appropriately treated and its quality monitored.
The intelligent Water Pass 2 controller monitors changes in water pressure and flow in the pipeline, automatically starting and stopping the pump according to current demand. The built-in check valve prevents water from flowing back into the pump, while the integrated 1 l tank reduces pressure surges each time the pump starts. The glycerin-filled pressure gauge ensures a stable, easy-to-read pressure reading even when the installation vibrates, and the five-way discharge outlet makes it easier to connect additional system components. The BJ 40/55 230V pressure booster set operates in single-phase systems typical of domestic and allotment installations.
Features
The BJ 40/55 pump is constructed with a body and shaft made of AISI 304 stainless steel, providing corrosion resistance when handling technically clean water. The impeller and diffuser made of PPO polymer reduce the unit’s weight without compromising its strength, while the ceramic/graphite/NBR mechanical seal prevents leaks along the motor shaft.
Water Pass 2 protects the pump against dry running by automatically switching it off when it detects a lack of water in the system, while the built-in 1 l tank reduces the frequency of motor starts during small, short-term water draws. The controller is universal—it works with surface and booster pumps as well as submersible, immersion, and vertical pumps.
- Pump housing: AISI 304 stainless steel
- Impeller and diffuser: PPO polymer
- Mechanical seal: ceramic / graphite / NBR
- Suction capacity: up to 9 m (Venturi tube)
- Thermal protection built into the pump motor winding
- Controller: Water Pass 2, intelligent controller with a built-in 1 l tank
- Factory switch-on pressure: 1.5 bar
- Built-in check valve and dry-run protection
- Universal compatibility with surface, booster, submersible, and immersion pumps
- Pump insulation class: F
- Pump protection rating: IP55
- Max. liquid temperature (pump): 70°C
- Connection: 1×1"
- Set contents: BJ 40/55 pump, Water Pass 2 controller, glycerin-filled pressure gauge, five-way discharge outlet
IPRO – 36 months (3 years) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certificates.
Frequently asked questions
How does the Venturi tube system in the BJ 40/55 pump work?
The Venturi tube increases the pump's suction capacity, allowing it to draw water from depths of up to 9 meters without the need for additional priming of the suction system. This solution is particularly useful when the water level in a well varies.
What is the purpose of the built-in 1 l tank in the Water Pass 2 controller?
The 1-liter tank limits the water hammer that occurs each time the pump switches on and off and reduces the frequency of pump starts during small, short-term water draws, extending the motor's service life.
Does a set with Water Pass 2 require an additional diaphragm tank?
No, the Water Pass 2 has its own integrated 1 l tank and controls the pump automatically based on the pressure and flow in the system—it does not require a separate diaphragm tank.
Is it possible to configure a custom set with a pump to order?
Yes, it is possible to configure a custom set to order. You can select the pump, pressure switch, and other protections available in the product range. To do so, please contact the customer service department.
What warranty applies to the BJ 40/55 set with IPRO equipment?
The BJ 40/55 set with IPRO equipment is covered by a 36-month (3-year) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
