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IE-SF • Liquid flow switch

  • Flow switches
  • Liquid

  • Flow control of water and aggressive media (depending on model)

Specifications

  • Alarm signal of flow shortage

  • Available in brass, suitable for not aggressive media, and in stainless steel AISI 316L for aggressive media

  • Well-suited in pipes of general industrial plants:

    • heating and air conditioning systems

    • refrigeration systems

    • sprinkler or anti-fire systems

    • heat pumps


Technical data

Switch capacity15 (8) A, 24...250 Vac
Contactsdust-tight microswitch with switching contacts SPDT
Max. liquid temperaturefrom -40 to +120 °C
Max. pressure11 bar (SF2: 30 bar)
Connectionstandard R1“ (DIN 2999) for series SF1 and SF2
Paddlesstainless steel AISI 316L
HousingBase in ABS, transparent PC cover
ProtectionIP65, class I
Dimensions140 x 62 x 65 mm

TypePipeMax. pressureNormal mediaAggressive mediaBody withFlow rate
Ø (Body in brass)(Body in stainless steel AISI 316L)pipe fitting 
[inch][bar]    
SF1K1…8 ''111
SF1E*1…8 ''111
SF1RE1…8 ''112
SF2E*1…8 ''301
SF2RE1…8 ''302
SF3E1/2 ''113
SF4E3/4 ''113
SF6E1 ''113
AccessoriesDBZ-09 - Stainless steel AISI 316L paddles for liquid flow switch

Notes

  • * Models with TUV approval
  • On request available 1''NPT connection version for series SF1 and SF2
  • The values indicated on schedule have been measured with the flow switch mounted on horizontal position
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