Wilo-Atmos GIGA-D
The universal glanded pump for heating, air-conditioning and cooling applications in large buildings.
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Description
The Wilo-Atmos GIGA-D offers a wide range of components and materials for a wide variety of applications. It can pump different fluids at temperatures from -20 °C to +140 °C making it particularly suitable for air conditioning and cooling applications. Any condensate that forms can be selectively discharged via an outlet. Equipped with state-of-the-art pump hydraulics and IE3 motors, the pump is as reliable as it is energy-saving. The cast components with corrosion-resistant cataphoretic coating also ensure a long service life.
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Advantages
- State-of-the-art pump hydraulics and IE3/IE4 motor technology for reliable and energy saving operation
- Long service life thanks to corrosion-resistant cataphoretic coating of all cast components
- Targeted discharge of condensate when used in air-conditioning systems and chillers
- Easy installation with the possibility of securing the pump feet for maximum stability
- Can be used in main/standby operation or peak-load operation (with an external auxiliary device)
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Technical Features
Design
Glanded twin-head pump in in-line design with flange connection
Application
- The pumping of heating water (in accordance with VDI 2035), chilled water and water-glycol mixtures without abrasive substances in heating, chilled water and cooling systems.
Typekey
Example Atmos GIGA-D 40/160-5.5/2 D In-line twin-head pump 40 Nominal diameter DN of the pipe connection 160 Nominal impeller diameter 5.5 Rated power P2 in kW 2 Number of poles Technical data
- Permitted temperature range of the fluid: -20 °C to +140 °C
- Max. ambient temperature 40 °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)
- Protection class IP55
- Nominal diameter DN 32 to DN 200
- Standard version for operating pressure: 13 bar (up to +140 °C) / 16 bar (up to +120 °C)
Materials
- Pump housing and lantern: Standard: EN-GJL-250;
- 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 double pump in in-line design with
- Switchover valve
- Mechanical seal
- Flange connection with pressure measuring connection R 1/8
- Lantern
- Coupling
- IEC standard motor
Option
- …-L1 variant with bronze impeller (at additional charge)
- …-L4 variant with stainless steel impeller (at additional charge)
- …-P6 variant in back pull-out design and with cartridge mechanical seal
- Other voltages and frequencies as well as ATEX approval on request
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