


Dwyer Instruments AFS-151 | Adjustable flow switch for liquids | 18 AWG | 24" polymeric lead wires | 316SS piston | 316SS housing
For oils, liquids, and gases, the Model AFS-151 Adjustable Flow Switches are piston-type flow switches with external adjustment. From 0.5 to 20 GPM, there are an endless variety of flow options available with this series.

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- Specifications
- Features
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Accuracy | +/-10% of setpoint |
Approvals | CE |
Connection | Electrical: 18 AWG, 24" (61 cm), polymeric lead wires, optional 1/2" male NPT conduit connection |
Connection | Process: 1/2" female NPT ports |
Manufacturer | Dwyer Instruments |
Material | Wetted: Housing and Piston: See model chart on catalog page Spring: 316SS O-ring: Fluoroelastomer Other: Epoxy |
Maximum Operating Pressure | 1000 psi (68 bar) |
Maximum operating temperature | -20 to 300°F (-29 to 149°C), -20 to 225°F (-29 to 107.2°C) with polysulfone piston |
Mounting | Any |
Rating | Electrical: .17 A @ 120 VAC, .08 A @ 240 VAC, .13 A @ 120 VDC, .06 A @ 240 VDC |
Repeatability | +/-1% maximum deviation |
Required Filtration | 50 microns or better |
Set Point | Adjustment: Liquids: 0.5 to 20 GPM (1.9 to 75.7 LPM) Gases: 1.0 to 75 SCFM (28 to 2124 LPM) at 5 psig |
Switch Type | SPDT. |
Type | Adjustable Flow Switches |
Weight | 2 lb, 11 oz (1.22 kg) |
- Flow set point that is modifiable externally.
- Provides a range of flow settings with accurate repeatability and minimal pressure drop at pressures up to 1000 psig.
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