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Wilo-BAC | Wilo

Wilo-BAC

The OEM safe solution for Chillers and Heat-Pumps.

Your advantages
Wilo-BAC 50

The OEM safe solution for Chillers and Heat-Pumps.

The Wilo-BAC series is specifically designed for safe integration into Chillers & Heat Pumps, including new generations using the eco-friendly R290 refrigerant. For that purpose, the BAC50 was tested by an external laboratory to verify the compliance to the requirements of clauses 22.116 and 22.117 of IEC 60335-2-40:2022.

Its Victaulic ports make the connection quick and easy. It is available in different power rates with a high interchangeability, providing a high flexibility of usage. Designed specifically for continuous operation, the pump also offers a long service life thanks to its corrosion-resistant materials or coatings and maintenance-free roller bearings.


Your advantages

  • Highest level of safety in heat pumps and chillers due to compatibility with refrigerants up to R290 gas
  • Energy savings thanks to ultra-modern hydraulics and motors​
  • Victaulic connection for quick installation​
  • Optimised pump dimensions for flexibility during replacement​
  • High reliability thanks to top-quality mechanical seal and bearing
  • Low noise due to modern motor design​​
  • optional: Maximum comfort with electrical connection thanks to quick connection plug 

Eco-friendly features

  • Efficient pump hydraulics (MEI ≥ 0.7) and usage of IE3 motors for high energy saving
  • Compact design of cast iron components for lowest possible weight
  • Sustainable and carbon-neutral production and processes in our European factories
Series description
Wilo-BAC

Design type

Glanded pump in monobloc design with Victaulic connection

Application

For pumping cooling and cold water, water-glycol mixtures and other fluids without abrasive substances.

The BAC50 can be used in R290 heat pumps (in accordance with IEC 60335-2-40).

Equipment/function

Single-stage low-pressure centrifugal pump in block design, with axial suction port and radially arranged pressure port

Typekey

Example

BAC 50/122-1.5/2

BAC

Monobloc pump for cooling and air-conditioning applications

50

Pipe connection (pressure port)

122

Impeller diameter

1.5

Rated motor 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 (others on request)
  • IP rating 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: PA 6.6 50 % GF (BAC70)
  • Pump housing: EN-GJL-250 (BAC50)
  • Impeller: PA/PPO, fibreglass-reinforced
  • Shaft: X30Cr13
  • Mechanical seal: BQEGG

Construction

Single-stage low-pressure centrifugal pump in block design, with axial suction port and radially arranged pressure port.

Scope of delivery

  • Pump
  • Installation and operating instructions
Documents

Installation and operating instructions

Wilo-BAC

Article Number 2036430
Edition 0203
Number of pages 23
Language en
PDF (1 MB)

Wilo-BAC

Article Number 2133933
Edition 2024-04
Number of pages 72
Language de, en, fr, nl
PDF (1 MB)

Consulting guide

Glanded pumps, single-stage, single-volute

Edition 2021-12
Number of pages 24
Language en
PDF (7 MB)

Certification booklet

Wilo-BAC

Article Number 4251952
Edition 2021-08
Number of pages 20
Language language neutral
PDF (4 MB)

Group Statement

Group Statement REACH

Edition 2021-05
Number of pages 5
Language language neutral
PDF (224 KB)

Reference sheet

Reference Sheet (English) - Power industry - Power Station Anpara, Anpara, India, 2014

Number of pages 2
Language en
PDF (2 MB)
Product selection
Product description Number of poles MEI IE Pipe connection on the suction side DNsPipe connection on the discharge side DNdRated power P2Gross weight, approx. mArticle number
BAC 70/135-3/2-DM/R-2
2
≥0,4
IE3
Ø 76,1
Ø 76,1
3 kW
32,5 kg
4213201
BAC 70/135-4/2-DM/R-2
2
≥0,4
IE3
Ø 76,1
Ø 76,1
4 kW
39 kg
4213202