Liquid flow switch
Electromechanical flow switches, suited for pipes of industrial plants: heating and air conditioning, refrigeration systems and heat pumps. Available in brass (suitable for normal media), and stainless steel AISI 316L (compatible with certain aggressive media).
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(10 st)-
SF1K- For pipes (diameter)
- 1...8"
- Flow
- 0.6…90.8 m 3 /h
- Media
- Normal
- "T" pipe fitting
- -
- Max. pressure
- 1100 kPa (11 bar)
-
SF1E
- For pipes (diameter)
- 1...8"
- Flow
- 0.6…90.8 m 3 /h
- Media
- Normal
- "T" pipe fitting
- -
- Max. pressure
- 1100 kPa (11 bar)
-
SF1RE
- For pipes (diameter)
- 1...8"
- Flow
- 0.2…55.3 m 3 /h
- Media
- Normal
- "T" pipe fitting
- -
- Max. pressure
- 1100 kPa (11 bar)
-
-
-
SF3E
- For pipes (diameter)
- 1/2"
- Flow
- 0.174…0.846 m 3 /h
- Media
- Normal
- "T" pipe fitting
- X
- Max. pressure
- 1100 kPa (11 bar)
-
SF4E
- For pipes (diameter)
- 3/4"
- Flow
- 0.138…0.768 m 3 /h
- Media
- Normal
- "T" pipe fitting
- X
- Max. pressure
- 1100 kPa (11 bar)
-
SF6E
- For pipes (diameter)
- 1"
- Flow
- 0.2…1.0 m 3 /h
- Media
- Normal
- "T" pipe fitting
- X
- Max. pressure
- 1100 kPa (11 bar)
-
SF2EI
- For pipes (diameter)
- 1...8"
- Flow
- 0.6…90.8 m 3 /h
- Media
- Corrosive (AISI 316L compatibility)
- "T" pipe fitting
- -
- Max. pressure
- 3000 kPa (30 bar)
-
SF2REI
- For pipes (diameter)
- 1...8"
- Flow
- 0.2…55.3 m 3 /h
- Media
- Corrosive (AISI 316L compatibility)
- "T" pipe fitting
- -
- Max. pressure
- 3000 kPa (30 bar)
Specifications
| Media | Water, Water max. 50% glycol |
|---|---|
| Contacts | Microswitch with switching contacts SPDT |
| Switch capacity | 15 (8) A, 24...250 V AC |
| Ambient temperature | -40…+85°C |
| Ambient humidity | 10...90 % RH (non-condensing) |
| Media temperature | -40…+120°C |
| Storage temperature | -20…+85°C |
| Storage humidity | < 95% RH |
| Connection | Standard R1" (DIN 2999) for series SF1 and SF2 |
| Material, casing cover | Transparent Polycarbonate (PC) |
| Material, casing base | ABS |
| Paddles | Stainless steel AISI 316L |
| Weight | 950 g |
| Dimensions | 140 x 62 x 65mm |
| Protection class | IP65 |
| Isolation class | I |
Software & documentation
Accessories
DBZ-09
Paddles for liquid flow switch in stainless steel AISI 316L. (Only for SF304... and SF350... Not for SF306X, SF307X…