Duct Mounted Airflow Measurement Station

Keeping in mind present day market tendencies, we're involved in manufacturing and presenting ultimate super of Duct Mounted Airflow Measurement Station for our famend clients in Bengaluru, Karnataka, India.

Product Details:
K Factor:0.97
Velocity Range:100 to 10,000 FPM (0.51-51 m/s).
Wetted Materials:Elements 6063-T5 anodized aluminum; Casings 16 ga G90 galvanized steel.
Humidity:0 to 100% non-condensing.
Process Connections:1/4" compression fittings.
Brand:Dwyer
Accuracy:2%

The SERIES FLST Airflow Measurement Station is easy to install -- simply connect the tubing to the station fittings, then to a differential pressure manometer, gage, transmitter or switch. Single or multiple airflow elements are factory mounted and pre-piped in a casing designed for flanged connection to the duct work. Standard materials consist of a G90 galvanized casing and 6063-T5 anodized aluminum flow sensors, suitable for most HVAC applications.

The Series FLST utilizes an airflow averaging element in a head-type device, generating a differential (velocity) pressure signal similar to the orifice, venturi, and other had producing primary elements. Strategically located sensing ports continually sample the total and static pressures when inserted normal to flow.

Total pressure sensed by the upstream ports are continually averaged within the airflow element in an isolated chamber. The static sensing ports are averaged in a second isolation chamber. Multiple elements are joined together for connection to a differential measurement device (gage, transmitter, etc.) for flow measurement and indication purposes.

Features:
Low signal-to-noise ratio
Factory mounted and pre-piped in a flanged duct section (casing)
Standard construction includes galvanized casing and 6063-T5 anodized aluminum flow sensors
Standard airflow stations can be operated (in air) continuously in temperatures up to 350A F or intermittently in temperatures up to 400A F

Options:
IM - Internal Pressure Connections.
F - (Oval Stations Only).


Application:
Building air intake and exhaust flow rate measurement
HVAC air flow measurement


FLST Specification Guide:
Provide where indicated and/or scheduled airflow traverse elements capable of continuously monitoring the fan or duct air volumes they serve.
Each element shall be designed and built to comply with, and provide results in accordance with, accepted practice for duct system traversing as
defined in the ASHRAE Handbook of Fundamentals, AMCA publication 203, as well as the Industrial Ventilation Handbook. The number of sens-
ing ports on each element, and the quantity of elements utilized at each installation, shall comply with ASHRAE Standard #111 for equal area duct
traversing.
Each airflow measuring element shall contain multiple total and static pressure sensing ports placed along the leading edge of the cylinder. The static pressure chamber shall incorporate dual offset static taps on opposing sides of the averaging chamber, so as to be insensitive to flow angle variations of as much as 20 degrees in the approaching airstream.
The airflow traverse elements shall be capable of producing steady, non-pulsating signals of true total and static pressure, with an accuracy of 2% of actual flow for operating velocities as low as 100 feet per minute (fpm). Signal amplifying sensors requiring flow correction (K factors) for field calibration are not acceptable.
The airflow traverse elements shall not induce a measurable pressure drop, greater than 0.18 inch at 4,000 fpm. The units sound level within the duct shall not be amplified, nor shall additional sound be generated.
The probes shall be manifolded together in a 16 gauge galvanized steel duct section with 90 degree undrilled flanges, fabricated to the duct size, and shall contain multiple airflow traverse elements interconnected as here in before described.