Flow Sensors

This category contains Flow Sensors that measure flow rates. The options are In-Line or Turbine. The In-Line turbines are designed to be inserted in a pipeline through compression fitting. The turbine flow sensors are designed for any pump, pressure or gravity feed system.

In-Line (Averaging Pitot Tube)

In-line Flow Sensors are compatible with gases and liquids and contain a velocity pressure output for liquid or gas indication of flow rate. Used by being inserted in the pipeline through a compression fitting. Available is a portable kit that contains a differential pressure gauge which is suited for use as a read-out device.

Series DS In-Line Flow Sensors

Use with the Dwyer® Differential Pressure Gages or Transmitters

Series DS In-Line Flow Sensor - Use with the Dwyer® Differential Pressure Gages or Transmitters, DS-300	Series DS In-Line Flow Sensor - Use with the Dwyer® Differential Pressure Gages or Transmitters, DS-400	Model A-471 Portable Kit" src="https://www.dwyer-inst.com/images/addtl/A_471_600x600.gif" _wpro_src="https://www.dwyer-inst.com/images/addtl/A_471_600x600.gif" title=" Model A-471 Portable Kit" width="200" height="200"> Model A-471 Portable Kit
Series 631B Capsuhelic® Wet/Wet Differential Pressure Transmitter Low pressure transmitter for use with DS-300/400 flow sensors." src="https://www.dwyer-inst.com/images/addtl/631B_600x6001.gif" _wpro_src="https://www.dwyer-inst.com/images/addtl/631B_600x6001.gif" title="Series 631B Capsuhelic® Wet/Wet Differential Pressure Transmitter Low pressure transmitter for use with DS-300/400 flow sensors." width="200" height="200"> Series 631B Capsuhelic® Wet/Wet Differential Pressure Transmitter Low pressure transmitter for use with DS-300/400 flow sensors.	A-160, Threaded branch connection, 3/8' NPT, forged steel, 3000 psi.	A-161, Brass bushing, 1/4' x 3/8'.

The SERIES DS In-Line Flow Sensors are two Series of averaging Pitot tubes for compatible gases and liquids that provide accurate and convenient flow rate sensing, for schedule 40 pipe, when purchased with suitable differential pressure gage with appropriate range.

The Series DS-300 Averaging Flow Sensors are designed to be inserted in the pipeline through a compression fitting and available for pipe sizes from 1 to 10" (2.5 to 25.4 cm). Accessories include adapters with 1/4" SAE 45° flared ends compatible with hoses supplied with the Model A-471 Portable Capsuhelic® Gage Kit.

The Series DS-400 Averaging Flow Sensors are designed for insertion lengths up to 24" (61 cm) and include a pair of 1/8" NPT x 1/4" SAE 45° flared adapters which are compatible with hoses used in the Model A-471 Portable Capsuhelic® Gage Kit. The supplied solid brass mounting adapter has a 3/4" dia. compression fitting to lock in required insertion length and a 3/4" male NPT thread for mounting in a threaded branch connection (not included).

Product Applications

Remediation
Natural, flare, flue, stack gas
Boiler feedwater
Cooling water
Superheated, saturated, or geothermal steam
Combustion or compressed air
Oil flow monitoring

Models & Ordering

Model	Description
DS-300-1	Flow sensor, 1" pipe size.
DS-300-10	Flow sensor, 10" pipe size.
DS-300-1-1/2	Flow sensor, 1-1/2" pipe size.
DS-300-1-1/4	Flow sensor, 1-1/4" pipe size.
DS-300-2	Flow sensor, 2" pipe size.
DS-300-2-1/2	Flow sensor, 2-1/2" pipe size.
DS-300-3	Flow sensor, 3" pipe size.
DS-300-4	Flow sensor, 4" pipe size.
DS-300-6	Flow sensor, 6" pipe size.
DS-300-8	Flow sensor, 8" pipe size.

Turbine

Turbine flow sensors with electrical transmission output are for remote indication of liquid flow rate. Dwyer flow sensors are designed for any pump, pressure, or gravity feed system. Applications include petrochemical, cooling towers, chemical blending, and pest control dispensing.