Atmos GIGA-NHT
Norm pump
The dedicated pump for district heating and industrial heat supply applications.
- Universally usable thanks to standardised dimensions, a range of motor options and impellers as well as mechanical seals adapted to the type of fluid
- High reliability through heat-resistant ductile cast-iron casing, large-volume sealing chamber and pressure resistant flange (PN 25)
- High overall efficiency through improved hydraulics with MEI > 0.4; the use of IE3/IE4 motors enables high energy savings
- Self-cooling mechanical seal instead of additional cooling systems allows for an easy installation
- User-friendly spacer coupling in back pull-out design for easy maintenance
- Self-cooling technology instead of a cooling system with additional water consumption provides high sustainability
- Optional: Wilo-EFC for easy operation and further energy savings
Wilo-Atmos GIGA-NHT
Number of results: [156]
Number of poles
Pipe connection on the suction side DNs
Pipe connection on the discharge side DNd
Recommended services
Atmos GIGA NHT 2 Pole
Design
Single-stage, low-pressure centrifugal pump with axial suction, mounted on a baseplate. Standard version with spacer coupling.Application
- Hot-water heating systems
- Cooling and chilled water circulation systems
- District heating loops up to 200 °C
- Industrial water cycles up to 200 °C
- Industrial heat transfer oil circuit systems up to 350 °C
Equipment/function
Single-stage low-pressure centrifugal pump in a long-coupled end suction pump design with coupling, coupling guard, motor and baseplate. The pump is sealed with a mechanical seal.Type key
Example: | Atmos GIGA-NHT 40/200-11/2 |
Atmos | Product family |
GIGA | Series designation |
NHT | Design |
NHT = long-coupled end suction pump for high-temperature applications | |
40 | DN for the discharge flange |
200 | Impeller nominal diameter [mm] |
11 | Rated power P2 [kW] |
2 | Number of poles |
Technical data
- Permissible temperature range:
- -20 °C … +350 °C (heat carrier oil)
- 0 … +200 °C (water)
- Mains connection 3~400 V, 50 Hz
- IP rating IP55
- Nominal diameter DN 32 to DN 150
- Max. operating pressure 25 bar
Materials
- Pump housing and lantern. Standard: EN-GJS-400-15
- Impeller: EN-GJL-250
- Shaft: 1.4021
- Mechanical seal:
- AQ7EGG (water)
- AQ1VGG (heat carrier oil)
Construction
- Single-stage low-pressure centrifugal pump as baseplate pump with axial suction ports with flanged bearing brackets and axle fastening for flexibly coupled drives
- Spacer coupling (sleeve coupling) is standard; this provides the option of leaving the motor in position when dismantling the rotor unit
Scope of delivery
- Pump
- Installation and operating instructions
- Bare shaft pump or
- Pump on baseplate with coupling and coupling guard, without motor or
- Completely mounted pump on baseplate with electric motor
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Datasheet and documentation
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