Product description
Possible areas of application 
SIKA flow monitors keep measurement of the flow of low-viscosity liquids in pipelines. Our SIKA VH501 paddle flow switches are particularly suitable for oil flow monitoring for traction transformers e.g. in:
- the electrical industry or
- in rail transport.
Description
Paddle principle
The flowing medium hits the plate secured to the end of a paddle. The resulting dynamic pressure causes the paddle to travel. This, in turn, causes the actuation of a micro switch.
Technical features
Technical features
| Oil flow monitoring for traction transformers | |
| Insertion installation into pipes |
DN 65...DN 100 (DN 25...DN 50 on request) |
| Switching function |
Change over contact or two change over contacts |
| Setpoint* |
Flanged version 6 m³/h at increasing flow for DN 65 pipes Threaded version 10 m³/h at increasing flow for DN 80 pipes |
| Pressure rating (Test pressure) | Max. 10 bar (14 bar) |
| Thread connection |
Flange, oval, 2 holes without O-ring groove Flange, round, 4 holes without O-ring groove Screw in connection G1 male |
| Vibration proof IEC61373 | 4g |
|
Temperature ranges Medium |
-40...120 °C |
| Electrical connection | Direct cabeling, QC terminals 2.8 x 0.5 mm |
| Change over contact, max. contact rating |
48 VDC, 1 A resistive load 110 VDC, 0.5 A resistive load / 0.2 A inductive load 250 VAC, 6 A resistive load |
| Degree of protection EN 60529 | IP68 and IP69K |
* Other setpoints on request
Further details can be found in the datasheet.
