NFPA 20 · HORIZONTAL · MULTISTAGE

MultistageFire Pumps

Horizontal multistage fire pumps are radially split casing, end suction, multistage centrifugal pumps with closed or semi-open impellers.

GURDE Horizontal Multistage Fire Pumps
DN40 – DN250Suction flange
DN32 – DN200Discharge flange
25 – 2500 GPMCapacity
60 – 170 mHead
up to 3000 rpmSpeed
-10 °C to +140 °COperating temperature
30 barCasing pressure
Product Description

Horizontal Multistage Fire Pumps

Horizontal multistage fire pumps are radially split casing, end suction, multistage centrifugal pumps with closed or semi-open impellers.

NFPA (National Fire Protection Association) is the American association that sets and publishes the standards, mandatory in the USA, on matters affecting fire and fire safety. NFPA is the most widely used standard in the world and, particularly for pump systems, the most frequently cited, respected and applied.

As in the rest of the world, fire fighting pump systems in our country are designed in accordance with NFPA standards. The NFPA 20 standard defines the installation rules and performance characteristics of fire pumps for fire protection.

Standards and design
NFPA 20Installation rules and performance characteristics of fire pumps
Radially split casingEnd suction, multistage
Closed or semi-openImpeller options
25 – 2500 GPMRated capacity range · 60 – 170 m
Design featureMultistage designRadially split casing, closed or semi-open impeller; can also be manufactured with multiple outlets
Selection Table

Horizontal Multistage selection table

Pump size and motor power according to rated capacity and head. Select a cell from the table.

SelectionSelect a cell from the table
Rated capacity
—
Head
—
Pump
—
Motor
—
2900 rpm1450 rpm
Capacity (GPM)Head (m) →30405060708090100110120130140150160170
255.7 m³/h
5011.4 m³/h
10022.7 m³/h
15034.1 m³/h
20045.4 m³/h
25056.8 m³/h
30068.1 m³/h
40091 m³/h
450102 m³/h
500114 m³/h
750170 m³/h
1000227 m³/h
1250284 m³/h
1500341 m³/h
2000454 m³/h
2500568 m³/h
Applications

Which systems is it used in?

4applications
Fire Fighting Systems01
Sprinkler Systems02
Fire Hose Cabinets03
Hydrant Systems04

ApplicationsHigh-rise buildings · Industrial plants · Power plants · Shopping centres · Storage areas

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