NFPA 20 · END SUCTION

End SuctionFire Pumps

End suction fire pumps are horizontal, single-stage centrifugal pumps with volute casing and closed impeller. Thanks to the back-pull-out design, the bearing and rotor assembly can be removed without disconnecting the volute casing from the pipework.

GURDE End Suction Fire Pumps
DN50 – DN300Suction flange
DN32 – DN250Discharge flange
25 – 5000 GPMCapacity
40 – 100 mHead
up to 3000 rpmSpeed
-10 °C to +120 °COperating temperature
10 – 16 barCasing pressure
Product Description

End Suction Fire Pumps

End suction fire pumps are horizontal, single-stage centrifugal pumps with volute casing and closed impeller. Thanks to the back-pull-out design, the bearing and rotor assembly can be removed without disconnecting the volute casing from the 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
HorizontalVolute casing, single-stage, closed impeller
Back-pull-outBearing and rotor assembly is removed without disconnecting the pump from the pipework
25 – 5000 GPMRated capacity range · 40 – 100 m
UL Listed / FM ApprovedListed models: 200 – 500 GPM · 84 – 150 PSI · 3000 rpm
Design featureBack-pull-out designBearing and rotor assembly can be removed without the volute casing being disconnected from the pipework
Selection Table

End 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) →30405060708090100
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
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

For your company, outsourced R&D

With 25+ years of pump and turbomachinery experience, we take on your company’s R&D and new product projects. You just focus on production and growing your global market.

Let’s Talk About Your Project

Main links

HomeAboutPumpsR&DContact

Pumps

End SuctionDouble SuctionMultistageWaste Water & SubmersibleVertical Line ShaftAPI 610Pump as TurbineFire FightingBooster Sets

Contact

Istanbul | Giresun+90 532 546 31 64Message us on WhatsAppContact form
KVKK Privacy NoticeCookie Policy
GURDE - Turbomachinery Design & Development
© 2026 GURDE Pump R&D and Consultancy. All rights reserved.