High-pressure centrifugal pumps NMH/NMV

Product catalog summary

Overview: The document provides technical specifications and applications for the NMH/NMV series of high-pressure centrifugal pumps, available in horizontal (NMH) and vertical (NMV) designs. These pumps are non-self-priming and multistage, designed for high efficiency and low-noise operation.

Specifications:

Capacity: Up to 220 m³/h (800 I.GPM, 970 US.GPM)
Total Head: Up to 400 m (1,312 ft)
Speed: Up to 3,500 r.p.m.
Temperature: Up to 140 °C (284 °F)
Casing Pressure: Up to 40 bars (580 psi)
Materials: Available in cast iron and cast stainless steel
Shaft Sealing: Options for gland packing or mechanical seals
Flanges: Discharge branch from DN 32 to DN 80, Suction flange DIN 2535, PN 40
Lubrication: Antifriction bearings are grease lubricated, slide bearings are liquid lubricated

Applications: These pumps are suitable for pumping clear and slightly contaminated liquids in various systems such as pressure boosting plants, central heating systems, water supply systems, shipbuilding, mining, power stations, filter units, fire extinguishing plants, and irrigation plants. They can handle liquids like fresh water, drinking water, boiler feed water, process water, sea and brackish water, hot water, condensate, and lyes.

Performance Range: The document includes performance charts for different speeds (1,450 r.p.m., 1,750 r.p.m., 2,900 r.p.m., and 3,500 r.p.m.) showing the relationship between flow rate (Q) and head (H) for various models (32, 40, 50, 65, 80).

Model Designation: The pumps are categorized by model numbers (32, 40, 50, 65, 80) with a minimum of 2 stages and varying maximum stages depending on the speed (r.p.m.).

Contact Information: OSNA-Pumpen GmbH, Brückenstraße 3, 49090 Osnabrück, Phone: +49 5411211-0, Fax: +49 5411211-220, Website: www.osna.de, Email: [email protected]

Catalog excerpts

High Pressure Centrifugal Pumps NMH/NMV

Open the catalog to page 1

High Pressure Centrifugal Pumps NMH/NMV Non-selfpriming multistage high-pressure centrifugal pump in horizontal (NMH) According to their product profiles the high-pressure centrifugal pumps NMH/ NMV are either furnished with gland packing or mechanical seals. ■ low-noise operation ■ modular principle ■ optimal adjusting to the operating point Discharge branch from DN 32 up to DN 80 Antifriction bearings grease lubricated Slide bearings liquid lubricated Casing pressure up to 40 bars (580 psi) Materials ■ application of high grade materials requests, available in cast iron, cast stainless steel...

Open the catalog to page 2

High-pressure centrifugal pumps NMH/NMV-3

NMH, NMV, performance range at 3.500 r.p.m. Model Designation Min. Number Max. Number of Stages at Speed r.p.m. of Stages 1450 1750 2900 3500

Open the catalog to page 3

High-pressure centrifugal pumps NMH/NMV-4

OSNA-Pumpen GmbH Brückenstraße 3 49090 Osnabrück Fon: +49 5411211- 0 Fax: +49 5411211-220 Internet: www.osna.de E-Mail: [email protected] Pumps Plants Water treatment Service

Open the catalog to page 4

High-pressure centrifugal pumps NMH/NMV

High-pressure centrifugal pumps NMH/NMV

Catalog excerpts

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