Example:	Helix FIRST V 3606/2-5/25/E/KS/../400-50
Helix FIRST V	Vertical high-pressure multistage centrifugal pump in in-line design
36	Flow rate in m3/h
06	Number of impellers
2	Number of trimmed impellers
5	Pump material
	5 = Pump housing EN-GJL-250 cataphoretic-coatedHydraulics 1.4307 (AISI 304L)
25	Maximum operating pressure in bar
	16 =Helix FIRST V 2.. to 16..: 16 bar: Oval flange PN 16Helix FIRST V 22.. to 52..: 16 bar: DIN round flange PN 16
	25 = Helix FIRST V 2.. to 16.. -5/25/E/S/..: 16 bar:DIN round flange PN 25Helix FIRST V 2.. to 16.. -5/25/E/KS/..: 25 bar:DIN round flange PN 25Helix FIRST V 22.. to 52..: 25 bar:DIN round flange PN 25
	30 = Helix FIRST V 2.. to 52..: 30 bar:DIN round flange PN 40
E	Seal typeE = EPDM
K	Cartridge type mechanical seal
S	The coupling guard is on a line with suction and discharge ports of the pump.
400	Connection voltage in V
50	Frequency in Hz

Electrical connection: 3~400 V (±10 %), 50 Hz
- ≤ 4 kW 230 V/ 400 V; Δ/Y
- > 4 kW 400 V/ 690 V; Δ/Y
Fluid temperature range: -20 to 120 °C
Max. operating pressure: 16, 25 or 30 bar
Protection class: IP 55
Max. ambient temperature: -15 °C – +40 °C
Helix FIRST V 2 – 16: PN 16 with oval flanges, PN 25/PN 40 with round flanges according to ISO 2531 and ISO 7005
Helix FIRSTV 22 – 52: PN 16/PN 25/PN 40 with round flanges according to ISO 2531 and ISO 7005

Pumps can be adapted to specific circumstances on request (e.g. motor protection, ATEX, extended ambient temperature range).

Non-self-priming, high-efficiency multistage high-pressure centrifugal pump in vertical design with in-line connections

Scope of delivery
- Helix FIRST V high-pressure multistage centrifugal pump
- Installation and operating instructions
- Helix FIRST 2-16 (version PN16 with oval flanges): Cast iron counter flanges with the corresponding screws, nuts and gaskets

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