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Wilo-Atmos GIGA-NHT | Wilo

Wilo-Atmos GIGA-NHT

The dedicated pump for district heating and industrial heat supply applications.

Your advantages
Wilo-Atmos GIGA-NHT

The dedicated pump for district heating and industrial heat supply applications.

Standardised dimensions, different motor variants, impellers and sliding directional seals make the Wilo-Atmos GIGA-NHT a universally applicable standardised pump for transporting hot fluids. Its heat- and pressure-resistant design offers high reliability for transporting water with temperatures ranging from -20 to above 200 °C, as well as oil with temperatures from 0 to 350 °C. The pump, which has been specially developed for continuous operation, is characterised by low life cycle costs, as its self-cooling technology means that there is no need for an additional cooling system and its roller bearings are maintenance-free. With an MEI > 0.4 and the use of IE3/IE4 motors, it has a high overall efficiency. Energy consumption can be further reduced by means of speed control using an optionally available Wilo-EFC. In case of maintenance, the spacer coupling ensures that the mechanical seal can be replaced as quickly as possible. In this case, Wilo offers additional, supplementary services ranging from commissioning to maintenance, and the comprehensive WiloCare full-service package is designed to ensure optimum operational reliability.


Your advantages

  • 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
Series description

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 carrier oil circuit systems up to 350 °C

Equipment/function

Single-stage low-pressure centrifugal pump in a norm pump design with coupling, coupling guard, motor and baseplate. The pump is sealed with a mechanical seal.

Typekey

Example:

Atmos GIGA-NHT 40/200-11/2

Atmos

Product family

GIGA

Series designation

NHT

Design

NHT = norm pump for high-temperature applications

40

DN for the pressure 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
  • Protection class 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
Documents

Installation and operating instructions

Wilo-Atmos GIGA-NHT

Article Number 8249758
Edition 2023-10
Number of pages 44
Language en
PDF (5 MB)

General overview

General Overview 2024 - International version

Edition 2024
Number of pages 74
Language en
PDF (33 MB)
Product selection
Number of results: 170
Product descriptionNumber of polesIEPipe connection on the suction side DNsPipe connection on the discharge side DNdRated power P2Gross weight, approx. mArticle number
Atmos GIGA-NHT 32/160-0.55/4-S2
4
IE3
DN 50
DN 32
0.55 kW
97 kg
6095320
Atmos GIGA-NHT 32/160-0.55/4-S7
4
IE3
DN 50
DN 32
0.55 kW
-
6095317
Atmos GIGA-NHT 32/160-3/2-S2
2
IE3
DN 50
DN 32
3 kW
120 kg
6095318
Atmos GIGA-NHT 32/160-3/2-S7
2
IE3
DN 50
DN 32
3 kW
-
6095319
Atmos GIGA-NHT 32/160-4/2-S2
2
IE3
DN 50
DN 32
4 kW
129 kg
6095322
Atmos GIGA-NHT 32/160-4/2-S7
2
IE3
DN 50
DN 32
4 kW
-
6095321
Atmos GIGA-NHT 32/160-5.5/2-S2
2
IE3
DN 50
DN 32
5.5 kW
175 kg
6098341
Atmos GIGA-NHT 32/160-5.5/2-S7
2
IE3
DN 50
DN 32
5.5 kW
-
6098340
Atmos GIGA-NHT 32/160.1-3/2-S2
2
IE3
DN 50
DN 32
3 kW
121 kg
6095368
Atmos GIGA-NHT 32/160.1-3/2-S7
2
IE3
DN 50
DN 32
3 kW
-
6095367
Atmos GIGA-NHT 32/160.1-4/2-S2
2
IE3
DN 50
DN 32
4 kW
130 kg
6095370
Atmos GIGA-NHT 32/160.1-4/2-S7
2
IE3
DN 50
DN 32
4 kW
-
6095369
Atmos GIGA-NHT 32/160.1-5.5/2-S2
2
IE3
DN 50
DN 32
5.5 kW
135 kg
6098335
Atmos GIGA-NHT 32/160.1-5.5/2-S7
2
IE3
DN 50
DN 32
5.5 kW
-
6098334
Atmos GIGA-NHT 32/200-5.5/2-S2
2
IE3
DN 50
DN 32
5.5 kW
185 kg
6095350
Atmos GIGA-NHT 32/200-5.5/2-S7
2
IE3
DN 50
DN 32
5.5 kW
-
6095349
Atmos GIGA-NHT 32/200-7.5/2-S2
2
IE3
DN 50
DN 32
7.5 kW
189 kg
6095348
Atmos GIGA-NHT 32/200-7.5/2-S7
2
IE3
DN 50
DN 32
7.5 kW
-
6095347
Atmos GIGA-NHT 32/200.1-5.5/2-S2
2
IE3
DN 50
DN 32
5.5 kW
185 kg
6098331
Atmos GIGA-NHT 32/200.1-5.5/2-S7
2
IE3
DN 50
DN 32
5.5 kW
-
6098330
Atmos GIGA-NHT 32/200.1-7.5/2-S2
2
IE3
DN 50
DN 32
7.5 kW
189 kg
6098333
Atmos GIGA-NHT 32/200.1-7.5/2-S7
2
IE3
DN 50
DN 32
7.5 kW
-
6098332
Atmos GIGA-NHT 40/125-1.1/2-S2
2
IE3
DN 65
DN 40
1.1 kW
100 kg
6098361
Atmos GIGA-NHT 40/125-1.1/2-S7
2
IE3
DN 65
DN 40
1.1 kW
-
6098360
Atmos GIGA-NHT 40/160-4/2-S2
2
IE3
DN 65
DN 40
4 kW
132 kg
6095380
Atmos GIGA-NHT 40/160-4/2-S7
2
IE3
DN 65
DN 40
4 kW
-
6095379
Atmos GIGA-NHT 40/160-5.5/2-S2
2
IE3
DN 65
DN 40
5.5 kW
177 kg
6095382
Atmos GIGA-NHT 40/160-5.5/2-S7
2
IE3
DN 65
DN 40
5.5 kW
-
6095381
Atmos GIGA-NHT 40/160-7.5/2-S2
2
IE3
DN 65
DN 40
7.5 kW
181 kg
6095384
Atmos GIGA-NHT 40/160-7.5/2-S7
2
IE3
DN 65
DN 40
7.5 kW
-
6095383
Atmos GIGA-NHT 40/200-1.1/4-S2
4
IE3
DN 65
DN 40
1.1 kW
127 kg
6095352
Atmos GIGA-NHT 40/200-1.1/4-S7
4
IE3
DN 65
DN 40
1.1 kW
-
6095351
Atmos GIGA-NHT 40/200-15/2-S2
2
IE3
DN 65
DN 40
15 kW
251 kg
6095354
Atmos GIGA-NHT 40/200-15/2-S7
2
IE3
DN 65
DN 40
15 kW
-
6095353
Atmos GIGA-NHT 40/250-11/2-S2
2
IE3
DN 65
DN 40
11 kW
277 kg
6095356
Atmos GIGA-NHT 40/250-11/2-S7
2
IE3
DN 65
DN 40
11 kW
-
6095355
Atmos GIGA-NHT 50/125-0.55/4-S2
4
IE3
DN 65
DN 50
0.55 kW
-
-
Atmos GIGA-NHT 50/125-0.55/4-S7
4
IE3
DN 65
DN 50
0.55 kW
-
-
Atmos GIGA-NHT 50/125-0.75/4-S2
4
IE3
DN 65
DN 50
0.75 kW
-
-
Atmos GIGA-NHT 50/125-0.75/4-S7
4
IE3
DN 65
DN 50
0.75 kW
-
-
Atmos GIGA-NHT 50/125-1.1/4-S2
4
IE3
DN 65
DN 50
1.1 kW
-
-
Atmos GIGA-NHT 50/125-1.1/4-S7
4
IE3
DN 65
DN 50
1.1 kW
-
-
Atmos GIGA-NHT 50/125-2.2/2-S2
2
IE3
DN 65
DN 50
2.2 kW
-
-
Atmos GIGA-NHT 50/125-2.2/2-S7
2
IE3
DN 65
DN 50
2.2 kW
-
-
Atmos GIGA-NHT 50/125-3/2-S2
2
IE3
DN 65
DN 50
3 kW
-
-
Atmos GIGA-NHT 50/125-3/2-S7
2
IE3
DN 65
DN 50
3 kW
-
-
Atmos GIGA-NHT 50/125-4/2-S2
2
IE3
DN 65
DN 50
4 kW
-
-
Atmos GIGA-NHT 50/125-4/2-S7
2
IE3
DN 65
DN 50
4 kW
-
-
Atmos GIGA-NHT 50/125-5.5/2-S2
2
IE3
DN 65
DN 50
5.5 kW
-
-
Atmos GIGA-NHT 50/125-5.5/2-S7
2
IE3
DN 65
DN 50
5.5 kW
-
-