Wilo-Atmos GIGA-B
The reliable all-rounder for heating, air-conditioning and cooling applications in large buildings.
The reliable all-rounder for heating, air-conditioning and cooling applications in large buildings.
The Wilo-Atmos GIGA-B is a glanded pump in close-coupled design, which is particularly suitable for transporting water in a variety of building types. The pump is characterised by its low life cycle cost thanks to its optimised hydraulic efficiency and ensures a long service life due to the corrosion-resistant cataphoretic coating of all cast components. A great variety of components as well as its wide temperature range from -20 °C to +140 °C makes it an all-rounder with a broad coverage of applications, including for water supply and industrial environments.
Installation and maintenance are customer-friendly thanks to standard pump support feet, back pull-out design with optional cartridge mechanical seal for large pump types (from 37 kW/4-pole). Due to its main dimensions in accordance with EN 733 it is compatible with many existing close-coupled end suction pumps.
Recommended services
Your advantages
- State-of-the-art pump hydraulics and usage of IE3/IE4 motors ensure energy savings
- Diverse impeller materials, several motor options and various mechanical seals allow for universal use in a multitude of applications
- Easy installation due to standard pump support feet and optional supporting blocks
- Easy maintenance and user-friendly design with optional back pull-out design and cartridge mechanical seal for large pump types
- Cataphoretic coating of all cast iron components ensures high resistance to corrosion and long service life
- Meets user requirements due to performance and main dimensions in accordance with EN 733 (DIN for end-suction pumps)
- Available as a special version for water supply applications
- Available with ATEX approval for use in industrial environments
Product features
- State-of-the-art hydraulics
- Main dimensions in accordance with EN 733
- KTL coating of all cast components
- Pump housing with feet as standard
- IE3/IE4 motor
- Optional back pull-out design from 37 kW/4-pole
- Impellers in grey cast iron, bronze, stainless steel
- Many pumps available with split pump curves/smaller motors
- Supporting blocks for installation as accessories
Design
Glanded pump in close-coupled design with flange connection
Application
For pumping heating water (in accordance with VDI 2035), water-glycol mixtures, cooling water and chilled water without abrasive substances in heating, chilled water and cooling water systems.
Type key
Example | BL 40/160-4/2 |
BL | Close-coupled end suction pump |
40 | Nominal diameter DN of the pipe connection (discharge port) |
160 | Nominal impeller diameter |
4 | Rated motor power P2 in kW |
2 | Number of poles |
Technical data
- Permissible temperature range of -20 °C to +140 °C
- Mechanical seal for pumping water up to Tmax = +140 °C. Up to T ≤ +40 °C, a glycol admixture of 20 % to 40 % by volume is permissible. An alternative mechanical seal must be provided for water-glycol mixtures with a glycol content of > 40% to max. 50% by volume and a fluid temperature of > +40 °C to max. +120 °C or other fluids that differ from water. When using water-glycol mixtures, the use of an S1 variant with a corresponding mechanical seal is generally recommended.
- Mains connection 3~400 V, 50 Hz (others on request)
- IP rating IP55
- Nominal diameter DN 32 to DN 150
- Max. operating pressure 16 bar (optionally 25 bar on request)
Materials
- Pump housing and lantern: Standard: EN-GJL-250; optional: Spheroidal cast iron EN-GJS-400-18-LT (depending on type)
- Impeller: Standard: EN-GJL-200; special version: Bronze CuSn 10 stainless steel 1.4408
- Shaft: 1.4122
- Mechanical seal: AQEGG; other mechanical seals on request
Construction
Single-stage low-pressure centrifugal pump in close-coupled design, with axial suction port and radially arranged discharge port with
- Mechanical seal
- Flange connection with pressure measuring connection R 1/8
- Lantern
- Coupling
- IEC standard motor
Scope of delivery
- Pump
- Installation and operating instructions
Options
- …-L1 variant with bronze impeller (at additional charge)
- …-L4 variant with stainless steel impeller (at additional charge)
- ...-P6 variant with back pull-out design and cartridge mechanical seal
- …-H1 variant with housing made of ductile cast iron on request
- ...-P4 variant for max. operating pressure of 25 bar on request
- ...-P2 variant: Drinking water version on request
- Other voltages and frequencies as well as ATEX approval on request
Accessories
- Bases (pump housing and motor) for installation on a base
- PTC thermistor sensor, PTC thermistor tripping relay
- Special motors
- Special mechanical seals
- SC-HVAC, CC-HVAC control systems and switchgears
Installation and operating instructions
Wilo-Atmos GIGA-I/-D/-B
| Article Number | 2231993 |
| Edition | 2023-08 |
| Number of pages | 80 |
| Language | en, zh |
PDF (7 MB)Wilo-Atmos GIGA-I/-D/-B
| Article Number | 2231893 |
| Edition | 2023-08 |
| Number of pages | 156 |
| Language | de, en, fr, nl |
PDF (8 MB)Additional instructions
Wilo-Atmos GIGA-I/-B, Wilo-Atmos GIGA-N
| Article Number | 2243026 |
| Edition | 2025-02 |
| Number of pages | 8 |
| Language | en |
PDF (4 MB)Wilo-Atmos GIGA-I/-B... ATEX, Wilo-Vero... IPL-N/DPL-N... ATEX
| Article Number | 2234770 |
| Edition | 2025-08 |
| Number of pages | 76 |
| Language | de, en, fr, nl |
PDF (4 MB)Consulting guide
Glanded pumps, single-stage, single-volute
| Edition | 2021-12 |
| Number of pages | 24 |
| Language | en |
PDF (7 MB)Group Statement
Group Statement REACH
| Edition | 2021-05 |
| Number of pages | 5 |
| Language | language neutral |
PDF (287 KB)UKCA
UKCA 2215781-04
| Number of pages | 1 |
| Language | language neutral |
PDF (198 KB)