Emsal Vana
Products / Sensors and instrumentation · 350–369 / Paddle flow switch
PRODUCT GROUP 353 · SENSORS AND INSTRUMENTATION

Paddle flow switch

A paddle flow switch detects liquid flow in a pipe or duct and gives a signal when a set flow rate is reached. It is widely used in process control and for pump protection.

PADDLE FLOW SWITCHTYPE 353 · EMSAL VANA
DN
1"
PN
10
MATERIAL
SS304 · ABS
STANDARD
DIN
CONNECTION
Male threaded connection
TEST
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Paddle flow switch

Technical data

01
Nominal size1"
Pressure ratingPN10
StandardDIN
Connection typeFlow
End connection standardMale threaded connection

The standards listed apply to stocked products. Contact us for other standards.

Material

02
Material
SS304ABS

Features

03

Operation

  • The sensing element (usually a paddle, flap or probe) is inserted into the pipe perpendicular to the flow.
  • When the medium flows, the element is deflected and triggers a mechanical or electronic switch.
  • When the flow passes a set threshold, the switch operates (e.g. a pump starts or an alarm is triggered).
  • Available with ON/OFF or analogue output.

Advantages

  • Simple installation: fitted directly through a tapped connection on the pipe.
  • Low cost: an economical way to detect flow.
  • Suitable for large pipes: works well in large-diameter water lines.
  • Rugged: stainless steel, bronze or plastic housings for chemical resistance.

Applications

  • HVAC systems: monitoring the cooling water circuit
  • Water treatment: filtration and pump systems
  • Food industry: flow control in washing lines
  • Power generation: circuit water flow monitoring

Considerations

  • Set the installation angle and insertion depth correctly.
  • Choose the flow threshold to suit the application; a wrong setting causes false switching.
  • With particle-laden liquids the paddle can jam; regular maintenance may be needed.

Downloads

04
DatasheetPDF · TR · dimension and weight table
IN PREPARATION
CAD modelSTEP · DXF · by nominal size
IN PREPARATION
3.1 certificate samplePDF · EN 10204 · TR/EN
Open sample

Related products

05
Paddle flow switch · 353 · SS304 · 1" · PN10