Wilo-Atmos GIGA-B
The reliable all-rounder for heating, air-conditioning and cooling applications in large buildings.
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Description
The Wilo-Atmos GIGA-B is a glanded pump in monobloc design, which is particularly suitable for transporting water in various building types. The pump is characterised by its low life cycle cost thanks to its optimised hydraulic efficiency, which ensures a long service life due to the corrosion-resistant cataphoretic coating of all cast components. A great variety of components and its wide temperature range from -20 °C to +140 °C makes it an all-rounder with a broad coverage of applications.
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 monobloc pumps. With the launch of the Atmos GIGA-B, Wilo has another glanded pump series at the cutting edge of technology under its belt.
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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 block
- 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)
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Technical Features
Design
Glanded pump in monobloc design with flange connection.
Application
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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.
Typekey
Example BL 40/160-4/2 BL Monobloc pump 40 Nominal diameter DN of the pipe connection (pressure port) 160 Nominal impeller diameter 4 Rated motor power P2 in kW 2 number of poles Technical data
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- 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)
- Protection class IP55
- Nominal diameter DN 32 to DN 150
- Max. operating pressure 16 bar (optionally 25 bar 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
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
- …-H1 variant with housing made of ductile cast iron on request
- …-P4 variant for max. operating pressure of 25 bar on request
- Other voltages and frequencies as well as ATEX approval 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 block design, with axial suction port and radially arranged pressure port with
- Mechanical seal
- Flange connection with pressure measuring connection R 1/8
- Lantern
- Coupling
- IEC standard motor
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