สวิทช์ตรวจจับอัตราการไหลแบบใบพาย
Flow Switch รุ่น VHS/VKS series
คุณลักษณะ
Level switches are the easy and reliable solution for monitoring fluid levels. The switches are installed at the side using G¾ or G½ thread sizes. The time-tested float principle and a potential-free contact as the signalling transmitter guarantee a high level of operational safety. The rising level in the tank forces the float up. Via paddle system, the magnet changes its position relative to the Reed contact and actuates it. The repulsion between the two homopolar magnets supports the buoyancy (Version VK... different). As soon as the level sinks again, the float follows as well and the magnet actuates the Reed contact again.
- Run dry protection for pumps (minimum alert)
- Spill protection (maximum alert)
- Leakage monitoring
- Screwed-connection oil level monitoring gauge, e.g. at compressors
- For water (VH, VK) and oil applications (VH)
คุณสมบัติ
| MODEL | VHS-SERIES | VKS-SEIES |
|---|---|---|
| Switching function | Contact → opens with falling level → closes with rising level reversing possible |
Contact → opens with falling level → closes with rising level reversing possible |
| Activation point, related to middle axis (water, 20°C) |
-4...0 mm (elbow version different) |
-4...0 mm |
| Hysteresis | Approx. 1...4 MM (elebow version different) |
Approx. 1...4 MM |
| Pressure rating | PN 25 | PN 10 |
| PVDF-float | 0.78 kg/dm3 | 0.78 kg/dm3 |
| Stainless steel cylinder float | 0.83 kg/dm3 | - |
| Mediun | -10...110°C | -10...100°C |
| Ambient→ VHS | -25...80°C | -25...80°C |
