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Flow Switch Adjustable
- Large range of sizes for flow rates from 1 to 600 l/min 1/4" to 3" pipe size
- Highly Reproducible
- Precise stepless adjustment of the switching value
- High switching power
- Not sensitive to dirt
- Short installation length
- PDF data sheet
| G Thread |
Nominal Width | Switching Range l/min H2O |
Qmax recomm- ended |
Type |
| G 1/4 | DN 8 | 1-5 | 8 | VM-008GR005 |
| 3-12 | 15 | VM-008GR012 | ||
| G 3/8 | DN 10 | 2-6 | 10 | VM-010GR006 |
| 3-12 | 15 | VM-010GR012 | ||
| G 1/2 | DN 15 | 2-5 | 15 | VM-015GR006 |
| 4-20 | 30 | VM-015GR020 | ||
| G 3/4 | DN 20 | 4-12 | 20 | VM-020GR012 |
| 10-40 | 50 | VM-020GR040 | ||
| G 1 | DN25 | 10-60 | 70 | VM-025GR060 |
| G 1 1/4 | DN 32 | 20-100 | 120 | VM-032GR100 |
| G 1 1/2 | DN 40 | 30-150 | 180 | VM-040GR150 |
| G 2 | DN50 | 50-250 | 300 | VM-050GR250 |
| G 2 1/2 | DN 65 | 50-400 | 480 | VM-065GR400 |
| G 3 | DN80 | 100-600 | 720 | VM-080GR600 |
| Dimensions and weights | ||||||
| G size | Part No | H mm |
L mm |
SW mm |
X mm |
Kg |
| G 1/4 | VM-008GR | 144 | 68 | 29 | 12 | 1.2 |
| G 3/8 | VM-010GR | 1.3 | ||||
| G 1/2 | VM-015GR | 13 | 1.4 | |||
| G 3/4 | VM-020GR | 73 | 32 | 11 | 1.5 | |
| G 1 | VM-025GR | 87 | 41 | 12 | 1.7 | |
| G 1 1/4 | VM-032GR | 155 | 98 | 52 | 13 | 2.3 |
| G 1 1/2 | VM-040GR | 156 | 113 | 59 | 14 | 3.0 |
| G 2 | VM-050GR | 164 | 137 | 72 | 17 | 4.3 |
| G 2 1/2 | VM-065GR | 195 | 160 | 85 | 26 | 5.8 |
| G 3 | VM-080GR | 175 | 148 | 200 | 23 | 7.0 |
The volume flow raises a spring loaded disc unit with a magnetic coupling which actuates a hermetically separated micro switch. The switching point is ajustable by turning the head of of the assembly which can then be locked into position with the locking screw. Ideally the unit should be mounted in vertical position as shown above with the flow horizontal and in straight section of pipe about 5 times longer than the pipe diameter on both the inlet and outlet sides to avoid turbulent flow. Other positions are possible but mounting the actuator body below the pipe (upside down) is not recommended.
Flow Switch General Specification
| Switch Type | Micro Switch |
| Nominal width | DN 8..80 |
| Process connection | female thread G 1/4..G 3 |
| Switching range | 1 - 600 l/min see table |
| Pressure Resistance | G 1/4..G 1/2 - PN 100 bar G 3/4..G 1 - PN 25 bar G 11/4 ..G 3 - PN 16 bar |
| Medium Temperature | -20..+90 °C |
| Ambient Temperature | -20..+70 °C |
| Media | water (oils and gases available on request) |
| Switching Voltage | Max 250 VAC |
| Switching Current | Max 5A |
| Protection Class | 2- safety insulation |
| Ingress Protection | IP 65 (optional IP 44) |
| Connection | plug DIN 43650-A / ISO 4400 |
Materials in contact with |
Rg 5 / Rg 6 nickelled, POM, 1.4310, CW614N, NBR, hard ferrite |
| Other Materials | ABS PA |
| Weights | see table for sizes and weights |
Ordering Information
| Model | FLow Switch Part Numbers | Price each |
| Part Number | Part Number = VM x GR y z | contact us for a quotation
|
| where | x = Nominal pipe size, y = flow rate switching range z= ATEX option see tables above and configurator on the pdf data sheet | |
| Options | Options |
|