


Dwyer Instruments P3-34 | Polypropylene flow switch | Actuation set point 1.5 GPM (5.68 LPM) | 3/8" NPT
With suitable liquids, the Series P3, Model P3-34 Polypropylene Flow Switches suit nearly all piping requirements. Select a 1/4" male "Quick Disconnect" or 3/8" male NPT port for the inlet and output, and then choose a quick disconnect acetal adapter for either straight through flow or with a shut off valve.

Free UAE shipping available
- Specifications
- Features
- Downloads
Accuracy | 20% of set point |
Approvals | CE |
Connection | Electrical: 24" (60.96 cm) polymeric wire leads, 22 AWG |
Connection | Process: 3/8" male NPT or 1/4" quick disconnect |
Manufacturer | Dwyer Instruments |
Material | Wetted: Housing: Polypropylene Piston: PPS composite Spring: 316SS O-ring: Fluorocarbon |
Maximum Operating Pressure | 125 psig (8.6 bar) @ 70°F (21°C) 50 psig (3.4 bar) @ 212°F (100°C) |
Maximum operating temperature | 0 to 212°F (-18 to 100°C) |
Mounting | Any position. Set points shown are based on vertical, inlet down position |
Rating | Electrical: .08 A @ 120 VAC |
Required Filtration | 100 microns or better |
Switch Type | SPST, N.O. |
Type | Polypropylene Flow Switches |
Weight | 5 oz (0.14 kg) |
- A hermetically sealed SPST magnetic reed switch is incorporated into the piston design.
- A range of fitting options allow for simple integration with existing pipes.
- When the adapter is taken out of the switch, the selectable shut-off valve will cut off the line stream.
- Economical design.
Related Products

Dwyer Instruments TDFS2-2-P-06-BSPT | Thermal dispersion flow switch for pipe size 2 to 10" (50 to 250 mm) | 316SS | 1/2" BSPT process connection | 6' of cable with conduit connection. (Extended length)

Dwyer Instruments TDFS2-2-P-06-BSPT | Thermal dispersion flow switch for pipe size 2 to 10" (50 to 250 mm) | 316SS | 1/2" BSPT process connection | 6' of cable with conduit connection. (Extended length)

Dwyer Instruments TDFS2-2-C-06 | Thermal dispersion flow switch for pipe size 2 to 10" (50 to 250 mm) | 316SS | 1/2" NPT process connection | 6' of cable with conduit connection. (Extended length)

Dwyer Instruments TDFS2-2-C-06 | Thermal dispersion flow switch for pipe size 2 to 10" (50 to 250 mm) | 316SS | 1/2" NPT process connection | 6' of cable with conduit connection. (Extended length)

Dwyer Instruments TDFS2-1-P-06 | Thermal dispersion flow switch for pipe size 1/2 to 1-1/2" (15 to 40 mm) | 316SS | 1/2" NPT process connection | 6' of cable with cable gland. (Standard length)

Dwyer Instruments TDFS2-1-P-06 | Thermal dispersion flow switch for pipe size 1/2 to 1-1/2" (15 to 40 mm) | 316SS | 1/2" NPT process connection | 6' of cable with cable gland. (Standard length)

Dwyer Instruments TDS212 | Thermal dispersion flow switch | PVDF wetted parts | 3.0" (7.6 cm) length

Dwyer Instruments TDS212 | Thermal dispersion flow switch | PVDF wetted parts | 3.0" (7.6 cm) length

Dwyer Instruments TDS222 | Thermal dispersion flow switch | PVDF wetted parts | 4.5" (11.4 cm) length

Dwyer Instruments TDS222 | Thermal dispersion flow switch | PVDF wetted parts | 4.5" (11.4 cm) length

Dwyer Instruments TDS122 | Thermal dispersion flow switch | PP/PPS wetted parts | 4.5" (11.4 cm) length

Dwyer Instruments TDS122 | Thermal dispersion flow switch | PP/PPS wetted parts | 4.5" (11.4 cm) length

Dwyer Instruments TDS112 | Thermal dispersion flow switch | PP/PPS wetted parts | 3.0" (7.6 cm) length

Dwyer Instruments TDS112 | Thermal dispersion flow switch | PP/PPS wetted parts | 3.0" (7.6 cm) length

Dwyer Instruments AFS-252 | Adjustable flow switch for gases | 1/2" NPT conduit connection | 316SS piston | 316SS housing

Dwyer Instruments AFS-252 | Adjustable flow switch for gases | 1/2" NPT conduit connection | 316SS piston | 316SS housing