Dwyer Series P2 Piston Flow Switch

Dwyer Series P2 is comprised of PPE & PS (polyphenylene ether and polystyrene) housing and piston and 316 Stainless Steel spring and stop pin. All wetted parts are FDA compliant. Economical and superior design make this an excellent switch for pure water equipment, filter life monitoring, heat exchangers, and cooling applications.

Flow Switch Sensors with an electrical contact output at a specific flow rate have different types of switches, which are paddle, thermal, piezo, and shuttle/piston.

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. Rugged construction and excellent chemical compatibility simplify flow/no flow detection.

The compact Series P2 Flow Switch utilizes a piston-type design for both air and pure water applications. The switches have preset actuation points from 0.05 to 1.0 GPM for water and 25 CFH to 5 CFM for air. The piston design incorporates a hermetically sealed SPST magnetic reed switch.

Dwyer Series P2 Features

  • Piston design incorporates a hermetically sealed SPST magnetic reed switch
  • All wetted parts are FDA compliant
  • Economical design

Application

  • Pure water equipment
  • Filter life monitoring
  • Heat exchangers
  • Cooling applications

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Specification

Service Compatible liquids or gases.
Wetted Materials Housing: PPE & PS (polyphenylene ether and polystyrene); Piston: PPE & PS (polyphenylene ether and polystyrene) and epoxy; Spring and Stop Pin: 316 SS.
Temperature Limits 0 to 212°F (-18 to 100°C).
Pressure Limits 150 psi (10.3 bar) @ 70°F (21°C); 50 psi (3.4 bar) @ 212°F (100°C).
Switch Type SPST, N.O.
Electrical Rating 17 A @ 120 VAC, .08 A @ 240 VAC, .13 A @ 120 VDC, .06 A @ 240 VDC.
Electrical Connection 22 AWG, 18″ (45.7 cm), PVC lead wires.
Process Connection 1/4″ male NPT.
Mounting Orientation Any position. Set points shown are based on vertical, inlet down position.

Download Data Sheet: Series P2 Piston Flow Switch

Ref: dwyer-inst.com

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