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    Series DS In-Line Flow Sensors

    In-Line Flow Sensors
    Use with the Dwyer® Differential Pressure Gages or Transmitters

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    Series DS In-Line Flow Sensors

    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
    More Information
    Model Chart
    EXAMPLE DS 400 6 LV Series DS-400-6-LV DS-400 Flow Sensor, 6" probe length, less valves
    SERIES DS 300
    400    		     DS In-Line Flow Sensor
    DS Averaging Flow Sensor
    RANGE     1
    1-1/4
    1-1/2
    2
    2-1/2
    3
    4
    6
    8
    10
    12
    14
    16
    18
    20
    24    		   1" Probe Length
    1-1/4" Probe Length
    1-1/2" Probe Length
    2" Probe Length
    2-1/2" Probe Length
    3" Probe Length
    4" Probe Length
    6" Probe Length
    8" Probe Length
    10" Probe Length
    12" Probe Length
    14" Probe Length
    16" Probe Length
    18" Probe Length
    20" Probe Length
    24" Probe Length
    OPTIONS       LV
    ST    		 Less Valves
    Stainless Tag
    Options
    • -LV - Less Valves (DS-300). To order, add suffix -LV.
    • Multiple sensing point measurement and built-in averaging capability eliminates the need for “traversing” the flowing stream with single point velocity pressure measurement saving time
    • Extremely reliable, proven technology, Pitot tubes, have been used in flow measurement for years
    • All models include convenient and quick-acting quarter-turn ball valves to isolate the sensor for zeroing with 1/8? female NPT valve assembly process connections.
    • Furnished with instrument shut-off valves on both pressure connections with 1/8? female NPT connections rated at 200 psig (13.7 bar) and 200°F (93.3°C)
    • Where valves are not required, they can be omitted at reduced cost
    • The Series DS-400 Averaging Flow Sensors are quality constructed from extra strong 3/4? dia. stainless steel to resist increased forces encountered at higher flow rates with both air and water
    • Economical flow indication when used with appropriate differential pressure gage
    • Rugged construction yields, non-clogging, stable design