Safe OEM solutions for cooling systems and heat pumps.
The Wilo-BAC series is specifically developed for safe integration into cooling systems and heat pumps, including a new generation of models utilizing the eco-friendly R290 refrigerant. To validate this, the BAC50 underwent testing by an external laboratory, confirming compliance with the requirements of IEC 60335-2-40:2022, clauses 22.116 and 22.117.
Connections are quick and simple thanks to Victaulic couplings. Available in various power ratings, the series offers high compatibility and exceptional operational flexibility. Designed specifically for continuous operation, these pumps ensure a long service life through the use of corrosion-resistant materials/coatings and maintenance-free rolling bearings.
Features/Product Advantages
Compatible with R290 refrigerant, ensuring maximum safety for heat pumps and cooling systems
Excellent energy efficiency achieved through advanced hydraulics and motor technology
Quick installation via Victaulic connections
Optimized pump dimensions for flexible replacement
High reliability due to premium-quality mechanical seals and bearings
Quiet, low-noise operation thanks to modern motor design
Optional: Convenient electrical connection via quick-connect plugs
Product Characteristics
Hydraulic quick-connect fittings with Victaulic connections
Electrical quick-connect plugs (optional)
Cast iron hydraulics with electrophoretic coating
High-efficiency motor (IE3)
High-efficiency hydraulics (MEI > 0.8)
Eco-friendly Attributes
Significant energy savings through high-efficiency hydraulics (MEI ≥ 0.7) and IE3 motors
Compact cast iron design to minimize weight
Sustainable and carbon-neutral production processes at our European facilities
Construction
Modular dry-rotor pump design with Victaulic connections
Applications
Pumping of cooling water, chilled water, water-glycol mixtures, and other media free of abrasive substances.
The BAC50 is suitable for use in R290 heat pumps (design compliant with IEC 60335-2-40).
Equipment/Function
Close-coupled, single-stage low-pressure centrifugal pump with axial suction port and radially arranged discharge nozzle
Model Code
|
Example |
BAC50/122-1.5/2 |
|
BAC |
Block pumps for cooling and air conditioning applications |
|
50 |
Pipe Connection (Water Outlet) |
|
122 |
Impeller diameter |
|
1.5 |
Motor rated power P2, in kW |
|
2 |
Number of poles |
Technical Data
Permissible temperature range: -15 °C to +60 °C (BAC70)
Permissible temperature range: -15 °C to +90 °C (BAC50)
Mains connection: 3~400 V, 50 Hz (other options available on request)
Protection class: IP55
Victaulic connection: DN 50 (60.3 mm) or DN 65 (76.1 mm)
Max. operating pressure: 10 bar (BAC50) or 6.5 bar (BAC70)
Materials
Pump housing: Polyamide 6.6, 50% GF (BAC70)
Pump housing: EN-GJL-250 (BAC50)
Impeller: Polyamide/PPO, glass-fibre reinforced
Shaft: X30Cr13
Mechanical seal: BQEGG
Type
Close-coupled, single-stage low-pressure centrifugal pump with axial suction port and radially arranged discharge nozzle.
Scope of Delivery
Pump
Installation and operating instructions