Series NHM
Chemically resistant, single-stage plastic centrifugal pump in close-coupled design, with magnetic drive, non-self-priming
Thanks to its special pump hydraulics, the NHM achieves an efficiency of up to 76% and sets benchmarks in its class for energy efficiency. Manufactured from individually selectable, chemically resistant high-performance materials, the NHM provides exceptional performance combined with an unusually long service life.
All sizes are also available in ATEX-certified versions for use in ATEX Zones 1 and 2. Available with threaded and flange connections as well as with drain and vent holes.
- Hermetic
- Magnetic coupling
- PP
- PVDF
- 80 °C
- 95 °C
- 42 m³/h
- 95 m³/h
- 27 m
- Highest efficiency, extremely energy-efficient
- Wear- and maintenance-free with a long service life due to the unique plain bearing design
- Hermetically sealed and completely leak-free due to the non-contact magnetic drive
Performance Overview
Description- Characteristics
- Performance Curves
- Spare Parts
Chemically resistant, single-stage plastic centrifugal pump in close-coupled design, with magnetic drive, non-self-priming
Features
- Hermetically sealed and completely leak-free, as the design does not require a shaft seal
- Contactless magnetic drive with high-performance neodymium magnets
- High-efficiency impeller and optimised volute casing for efficiencies of up to 76%
- Impeller and inner magnet with modular design for easy replacement
- Maintenance-free in normal operation due to generously dimensioned plain bearings
- Reliable operation even at high pressures and temperatures due to unique containment shell geometry
- All wetted parts made of high-quality, corrosion-resistant plastics (natural PVDF or PP-CF and natural PP)
- Equipped as standard with threaded connections according to ISO 228-1 or flange connections
- Universal application, compact and quiet
- Optionally with approval for use in potentially explosive atmospheres (ATEX Zones 1 and 2)
- Available for ATEX Zone 1 made of conductive plastics (on request)
- All screws made of stainless steel V4A (1.4571)
- Optional: with vent or drain holes for individual installation positions
Applications
Pumping of acids, alkalis or other corrosive, hazardous or toxic liquids in applications where leakage of even the smallest quantities is undesirable and a hermetically sealed pump is required.
Pumping of high-purity or sensitive liquids where contamination of the process fluid with foreign substances must be avoided.
For example in the following applications:
- Electroplating and surface coating
- Wet chemical processes in semiconductor technology, solar cell production and printed circuit board manufacturing
- Wastewater and fresh water treatment
- Laboratory and medical technology
- Environmental technology, exhaust gas treatment, gas scrubbers
- Battery production, energy storage
- High-purity applications, demineralised water, ultrapure water
Dimensions
The specified dimensions are provided as reference values. Deviations may occur depending on the motor design or manufacturer.
A binding dimensional drawing will be provided with our quotation.
| GS | GD | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NHM 200 | Thread (inch/mm) |
DN | Thread (inch/mm) |
DN | L (mm) |
B (mm) |
H (mm) |
S (mm) |
a (mm) |
b (mm) |
c (mm) |
D (mm) |
d (mm) |
e (mm) |
f (mm) |
g (mm) |
h (mm) |
i (mm) |
Weight kg) |
| 1.5 kW | G2¼" d50 | 40 | G2¼" d50 | 40 | 496 | 210 | 254 | 10 | 272 | 203 | 125 | 200 | 105 | 15 | 80 | 140 | 230 | 101 | 25 |
| 2.2 kW | G2¼" d50 | 40 | G2¼" d50 | 40 | 496 | 210 | 254 | 10 | 272 | 203 | 125 | 200 | 105 | 24 | 80 | 140 | 230 | 101 | 25 |
| 3.0 kW | G2¼" d50 | 50 | G2¼" d50 | 40 | 532 | 282 | 264 | 12 | 279 | 211 | 140 | 200 | 105 | 14 | 80 | 160 | 230 | 101 | 35 |
Downloads Series NHM
