Paddle flow switches, reed switch contact, 1/2” male thread, long paddle
Main uses: The most simple flow switch with magnetic pull-back. Recommended mounting position is on horizontal pipes, but can be mounted in any position. For water flow detection on dia. 25 to 63 mm water pipes.
| Weight | N/A |
|---|---|
| Flow sensing | |
| Main housing material | |
| Paddle material | |
| Mounting position | |
| Voltage | |
| Electrical rating | |
| Ingress protection | |
| Maximum flow detection (L/min) | |
| Minimum flow detection (L/min) | |
| Nominal pressure at 20°C |
| Size and pressure | Flow sensing:
Cleavable magnetic pull |
Mounting:
1/2” BSPP thread |
Contact:
Reed switch, close on |
Electrical rating | Mounting position | Type |
| PN10 |  |
 |
 |
 |
 |
R1S(BSPP) R1F (NPT) |
| DN≥63 |
Dimensions
 1: Paddle 2: Body 3: Cable
|
 1: Paddle 2: Body 3: Cable |
Main uses: The most simple flow switch with magnetic pull-back. Recommended mounting position is on horizontal pipes, but can be mounted in any position. For water flow detection on dia. 25 to 63 mm water pipes.
Functional principle:
Balanced magnetic paddle mounted perpendicular to the flow and activating a reed switch through the wall. The return of the paddle is by made by magnetic action, without spring. No seal or liquid can pass between the piping system and the electrical contact. Suitable for corrosive water pools and spas and salination chlo- rination and bromination systems. Must not to be used for water containing magnetic particles or high viscosity liquids, which block the movement of the paddle. Adjustment: Can be adjusted by cleaving the paddle
Main housing material: Polypropylene, resistant to ozone and water disinfection products, usable with potable water.
Paddle: Polypropylene, 13 mm width
Paddle shaft: Titanium, providing an outstanding corrosion resistance, and improved mechanical live
Electrical rating: Max 1A, Max 70W, Max 250V, resistive load. Use on inductive circuits reduces electrical rating. We recommend to protect the reed switch with contact protection device when used in inductive loads
Electric contact type: Normally open, closes by flow rise
Liquids compatibility: For use with clean water and liquids without magnetic particles and without chemical incompatibility with polypropylene and titanium
Nominal pressure at 20°C: 1MPa (PN10)
Assembly on pipes:
 |
 |
 |
 |
 |
Average Flow detection values vs pipe I.D. and paddle length (Liters/min)
|
Paddle length |
Pipe ID (mm) |
|||||||||
|
25 Not suitable for R1S |
32 | 40 | 50 | 63 | ||||||
| *Close | **Open | *Close | **Open | *Close | **Open | *Close | **Open | *Close | **Open | |
| 1 | 26 | 6 | 38 | 15 | 79 | 30 | 127 | 58 | 172 | 108 |
| 1+2 | 28 | 11 | 63 | 18 | 83 | 37 | 143 | 73 | ||
| 1+2+3 | 20 | 7 | 49 | 10 | 63 | 27 | 105 | 53 | ||
| 1+2+3+4 | 19 | 7 | 57 | 22 | 93 | 47 | ||||
| 1~5 | 48 | 15 | 72 | 31 | ||||||
| 1~6 | 48 | 9 | 66 | 23 | ||||||
| * Close by flow rise (L/min) of contact open at no flow position
** Open by flow decrease (L/min) of contact open at no flow position. Average values for indication only. Standard tolerances ±30% |
||||||||||
Nominal diameter: Can be used on 25 to 63 mm internal diameter pipes. The paddle is cleavable and can be cut at various lengths upon pipe diameter. There are cutting lines numbered 1 to 6 every 5mm.
Recommended mounting position: On horizontal pipes. Mounting in other positions slightly modify the calibration
Water pipe connection: On female ½” fitting. On the type with BSPP thread, a NBR gasket is supplied with the product. On the type with NPT thread, thread sealant must be used.
Recommended torque: 7 Nm
Liquids temperature range: 5 to 80°C
Ambient temperature range: 5 to 50°C
Ingress protection: IP65
Electrical connection: 2 x AWG24 (0.2mm²) cable, PVC insulation, T80°, style UL2464.
Installation instructions:
- Check carefully the paddle orientation: The arrow on housing must be exactly parallel to the pipe
- A 5 mm minimum gap must be respected between end of the paddle and tube wall opposite to the
- We recommend the use of nozzles of length less than or equal to 18mm between the gasket seat and the inside of the tube and with an inner diameter greater than or equal to 20 mm, to avoid blocking of the
Accessories: 1/2” PVC saddles for DN40 to DN100 (OD) PVC pipes, and other fittings: see last section of this catalogue
Options: cable with connector or terminals, other cable length
Main references
Downloads
Datasheets
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