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FLA-2 Helix V 3602/1 PN10 | Wilo

FLA-2 Helix V 3602/1 PN10

Article number: 2534380
Technical data
Tender text

Pressure boosting system to be connected indirectly and fully automatic double pump compact unit as homogeneous redundant version of a single-pump system for fire extinguishing applications.

Consisting of:

Two non-self-priming, multi-stage high-pressure multi-stage centrifugal pumps in vertical design. Impellers and stage housing are made of stainless steel.

The complete high-efficiency Helix series is equipped with a user-friendly mechanical seal (X seal) in cartridge design and standard sealing for easy maintenance. The flexible lantern design allows direct access to the mechanical shaft seal. IE2 standard motors, 3-phase, 2-pole.

Diaphragm pressure vessel (capacity 8 l), joint tubing on suction and pressure side for each pump: with non-return valve, shut-off valve on suction and pressure side (sealed in opened state), manometer, pressure switch for automatic system control.

Comes as standard with pump protection by means of minimum volume acceptance via bypass without auxiliary energy.

FLA switchgear for fire extinguishing systems in accordance with DIN 14462. Integrated in a steel sheeting housing.

Homogeneously redundant switchgear version without mutual lock, i.e. two complete autonomous working controls with one power supply each for operation of one pump each. Scope of functions and suitability in accordance with DIN 14462 have been proven by TÜV test report.

Per pump with one control consisting of:

Built-in motor protection only for signalling of faults. The motor protection is activated in test run.

Switch for Manual-Automatic mode Control of the pump by pressure switch in automatic mode; expandable to up to eight sensors (in series connection), for example external on/off limit switch etc. (more than eight sensors on request). All sensor signals which could lead to the pump being started are monitored for wire breakage and short circuits.

System with programmable time switch for regular test run.

Dry-running protection relay, for example, for connection of low water float switch from the WILO FLA break tanks, electrodes, pressure switches etc.; low water status only for signalling of faults. The low water is activated in test run.

With signal lamps for operational readiness (green), pump ON (green), fault (red), pump request (white) as well as potential-free contacts for operational readiness and collective fault (possible as common signal) and pump ON.

Suitable for use in industrial and residential areas in accordance with the basic requirements of guideline 2004/108/EC (EMC guideline).

The system has been mounted on the base frame with wires and pipes are ready for connection.

Operating Data
Max. delivery head Hmax 44.3 m
Number of pumps 2
Fluid temperature T 3 °C
Ambient temperature T 5 °C
Maximum operating pressure PN 10 bar
Maximum inlet pressure p inl 10 bar
Motor data
Mains connection 3~400 V, 50 Hz
Rated power P2 5.5 kW
Rated current IN 10.5 A
Power factor cos φ 0.86
Rated speed n 2900 1/min
Activation type Direct/Star-Delta
Protection class motor IP55
Protection class switchgear IP54
Pump housing Grey cast iron
Impeller Stainless steel
Shaft Stainless steel
Shaft seal Q1BE3GG
Gasket material EPDM
Pipework material Stainless steel
Installation dimensions
Pipe connection on the suction side DNs DN 100
Pipe connection on the discharge side DNd DN 100
Ordering information
Brand Wilo
Product description FLA-2 Helix V 3602/1 PN10
Net weight, approx. m 397 kg
Article number 2534380

Installation and operating instructions

Wilo-Helix V, FIRST V, 2.0-VE 2-4-6-10-16

Article Number 4143727
Edition 02/2022
Page format 209.9 x 297.0 mm
Number of pages 24
PDF (6 MB)

Wilo-Helix V/ FIRST V 22-36-52

Article Number 4120943
Edition 1603
Page format A4
Number of pages 1
ZIP (111 MB)

Wilo-Helix V, FIRST V, 2.0-VE 22-36-52

Article Number 4120943
Edition 02/2022
Page format 209.9 x 297.0 mm
Number of pages 28
PDF (7 MB)

Wilo-MultiVert MVI 16../32../52../70../95..

Article Number 2040502
Edition 1606
Page format A4
Number of pages 1
ZIP (7 MB)


Article Number 2534411
Edition 2017-11
Page format 209.9 x 297.0 mm
Number of pages 48
PDF (2 MB)


Article Number 2534409
Edition 2021-09
Page format 209.9 x 297.0 mm
Number of pages 32
PDF (2 MB)

Certificate REACH

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (212 KB)


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With Wilo as your partner, you can not only be sure of choosing high-quality product solutions, but also of benefiting from a comprehensive, worry-free package of well thought-out services. We collaborate to develop a service concept tailored to your individual needs; with our expertise and personal consultancy, we make sure that the operation of your systems is as energy-efficient, reliable and economical as possible. All the while our competent Wilo service technicians are ready to assist you with fast, reliable and on-time support.

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More suitable services

Extended Warranty
Extended warranty FFS (twin-head pump)

In combination of a new pump or system Wilo offers an extended warranty of up to five years in combination with commissioning and maintenance by the Wilo Service.

Extended warranty includes:

  • Full protection and predictable cost security
  • Regular maintenance work by the Wilo Service
Maintenance COMFORT FLA systems DIN 14462

In order to ensure and guarantee operational reliability of the pumps/systems, it is recommended to have regular and DIN-compliant inspections and maintenance carried out by the works' own WILO SE Customer Service Department. The tasks are carried out in accordance with DIN 31051 / DIN EN 13306. The tasks comprise the following points:

  • Visual inspection of the pumps/systems
  • Mechanical check
  • Electrical check
  • Testing and possible filling of pressure vessels that may be on hand
  • Review and, if necessary, adjustment of the system parameters
  • Creating a maintenance protocol
  • Consumable materials are included in the contract price
  • Elimination of payroll and travel expenses for deployments between maintenance intervals (during normal service hours)

Scheduling and organisation is performed by WILO. Other individual maintenance offers are possible on request.