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Product code: XMMO

North Ridge XMMO Horizontal Multistage Multi Outlet Pump

Name: North Ridge XMMO Horizontal Multistage Multi Outlet Pump
Brand: North Ridge

Pump Type - Multistage

Max Flow Rate - 1000M³H

Max Head - 550M

Pump Materials - AISI304, AISI316, AISI316L, Duplex Stainless Steel, Bronze, Cast Iron, Ductile Iron, Duplex, NiAl Bronze, Super Duplex

Max Temp - 140°C

Max Viscosity - 200 cst

Max Solid Passage - 20mm

Self Priming - N

Inlet/Outlet Sizes - 32mm to 250mm

Drive - AC Electric, Engine, Bareshaft

Max Suction Lift - 8M

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DESCRIPTION

XMMO Horizontal Multistage Multi Outlet Pump

Multistage Multi Outlet Pumps are a design of pump which have a single inlet, but twin outlets delivering two discharge pressures simultaneously.

They are utilized in high rise buildings as fire suppression pumps for four reasons:

1. They eliminate the requirement for water storage tanks at intermediate levels within a building.

2. Eliminate the requirement for pressure reducing valves meaning equipment is more efficient.

3. Over pressurisation of sprinkler heads is prevented.

4. Two duties from one pump saves on equipment cost as required duties can be achieved by a single model.

Design Characteristics
The XMMO is capable of producing pressures up to 55bar and flows up to 1000M³H. Designed for Heavy Duty Applications the XMMO is built to BB4 Standards meaning the unit is radially split, has a between bearing design, dual lifetime grease lubricated bearings and wear rings to ensure casing life is prolonged.

This unit can also be utilized in other applications such as water transfer or irrigation where two duty points may be required. If connected to a Variable Speed Drive a multitude of duty points are achievable across both discharges.

Materials can be specified to enable the handling of Seawater, Chemicals or Fuels. This model is also ATEX rated, making it suitable for installation in flammable atmospheres.

Flanges can be rotated according to customers requirements with inlet / outlets rotated at 90° angles to match pipework.

Product Summary
ATEX Rated
Maximum Temperature of 140°C
Heavy Duty Construction with Twin Lifetime Grease Lubricated Bearings
Wear Ring Design ensures casing life is prolonged
Independent Pump and Motor Shafts
Available in Cast & Ductile Iron, Stainless Steel, Bronze, Duplex and other materials on request.
Gland Packing or Mechanical Seal Available
Self Priming versions available via air or electric priming pump
Independent Testing Certification Available

Read more about Multistage Pumps in our Guide

FAQS

What is a Multistage Multi Outlet Pump?

Multistage Multi Outlet Pumps are a design which have a single inlet, but twin outlets delivering two discharge pressures simultaneously.

Why are Multistage Multi Outlet Pumps used?

They are utilized in high rise buildings as fire suppression pumps for four reasons:
1. They eliminate the requirement for water storage tanks at intermediate levels within a building.
2. Eliminate the requirement for pressure reducing valves meaning equipment is more efficient.
3. Over pressurisation of sprinkler heads is prevented.
4. Two duties from one pump saves on equipment cost as required duties can be achieved by a single model.

What does the term multistage mean?

Centrifugal pumps typically have only one impeller, whereas a multistage pump has multiple impellers or stages mounted on a single rotating shaft. The multiple impellers allow for higher pressures to be generated, than could be generated by a single impeller.

Are multistage pumps efficient?

Multistage pumps have high efficiencies due to the tolerances and clearances being very small within the pump casing. They use closed impellers, and are more efficient that a single stage centrifugal design.

Due to tolerances and clearances being small within this design, it means unless units are very large or oversized, they are unable to accommodate solids.