Dwyer P1 Series Shuttle or piston flow switches are sensors with an electrical contact output at a specific flow rate. Models are used with oil, air, water and gases. Applications include oil flow control, low flow detection in cooling lines, and high pressure lubrication systems.
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| Dwyer P1 Series Brass Piston Flow Switch |
Rugged construction and excellent chemical compatibility simplify flow/no flow detection. The Series P1 Brass Flow Switches utilizes a piston-type design for accurate detection of excessive or insufficient flow rates. The switches have preset actuation points from 0.10 to 1.5 GPM for liquid flow.
Dwyer P1 Series Features
- Piston-type operation yields accurate detection of low flow rates
- The piston magnetically actuates a hermetically sealed SPST reed switch
Application
- Industrial cleaning equipment
- Detecting loss of fluid in hydraulic systems
- Assuring proper coolant flow in semiconductor processing
Dwyer P1 Series Specification
| Service | Compatible liquids. |
| Wetted Materials | Housing: brass; Piston: polysulfone; Spring: 316SS; O-Ring: Fluoroelastomer, Other: Epoxy. |
| Temperature Limits | -20 to 225°F (-29 to 107°C). |
| Pressure Limits | 1000 psig (68.9 bar). |
| Accuracy | ±10% of set point. |
| Repeatability | ±1%. |
| Switch Type | SPDT. |
| Electrical Rating | 17 A @ 120 VAC, .08 A @ 240 VAC, .13 A @ 120 VDC, .06 A @ 240 VDC. |
| Electrical Connection | 18 AWG, 24" (60.96 cm), Polymeric lead wires. |
| Process Connection | 1/4" female NPT. |
| Mounting Orientation | Any position. Set points shown are based on vertical, inlet down position. |
| Required Filtration | 50 microns or better. |
| Weight | 0.66 lb (301 g). |
| Agency Approval | CE. |
Download Data Sheet: Series P1 Brass Piston Flow Switch
Ref: dwyer-inst.com
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