NFPA 20 · DOUBLE SUCTION · AXIALLY SPLIT CASING

Double SuctionFire Pumps

Double suction fire pumps have a wide capacity and head range, and allow easy maintenance and repair without dismantling the motor and pipework.

GURDE Double Suction Fire Pumps
DN100 – DN250Suction flange
DN65 – DN200Discharge flange
400 – 5000 GPMCapacity
50 – 140 mHead
up to 3000 rpmSpeed
-20 °C to +80 °COperating temperature
16 – 25 barCasing pressure
Product Description

Double Suction Fire Pumps

Double suction fire pumps have a wide capacity and head range, and allow easy maintenance and repair without dismantling the motor and pipework.

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
Axially split casingDouble suction, horizontal
Wide operating rangeWide capacity and head range
400 – 5000 GPMRated capacity range · 50 – 140 m
UL Listed / FM ApprovedListed models: 100 – 2500 GPM · 85 – 208 PSI · 2100 – 3000 rpm
Design featureMaintenance without dismantlingEase of maintenance and repair without dismantling the motor and pipework
Selection Table

Double Suction 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) →5060708090100110120140
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
3000681 m³/h
3500795 m³/h
4000908 m³/h
45001022 m³/h
50001136 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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