Key facts
- Brand
- FlowLine
- Model
- LV20
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2023-10-12
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Flowline LV20 and LH25 Mini-Float Liquid Level Switch User Manual
The document serves as a user guide for the Flowline LV20 (vertical) and LH25 (horizontal) Mini-Float Liquid Level Switches. It details the operating principle where a magnet on a buoyant float actuates a reed switch upon immersion in liquid.
Key sections cover safety precautions regarding installation torque and material compatibility, specific orientation requirements to ensure proper operation, electrical specifications including voltage limits and contact ratings, and wiring instructions for integration with Flowline controllers.
Flowline LV20 specifications
| Accuracy in water | ±5mm |
|---|---|
| Repeatability in water | ±2mm |
| LV20 Contact Rating | 120VAC/VDC @ 50 VA |
| LV20 Temperature Range (F) | -40˚ to 176˚ |
| LV20 Pressure Range | 10 psi (0.7bar) |
| LH25 Pressure Range | 100 psi (6.9 bar) |
Source: Flowline LV20 and LH25 Mini-Float Liquid Level Switch User Manual
All Flowline LV20 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the maximum cable length for these switches?
The cable length may be extended up to a maximum of 500 feet using well insulated, shielded wire.
From: Flowline LV20 and LH25 Mini-Float Liquid Level Switch User Manual
What material is used for the wetted parts of the LH25-5201 model?
The LV20-52_1 and LH25-5201 switches are made of Polyvinylidene Fluoride (PVDF) with a Tetrafluoroethylene (TFE) cable.
From: Flowline LV20 and LH25 Mini-Float Liquid Level Switch User Manual
Can vertical switch stems be mounted at an angle?
Satisfactory operation is possible with the stem at up to a 30° angle from vertical.
How should switches be installed?
Switches should be installed rigidly so the float or floats are free to move as the liquid level changes.