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The R-317 Air Flow Controller is a proportional, direct acting, low volume output signal instrument. The R-317 measures the differential between two static pressures and produces an output signal which is proportional to the differential of the static pressures.
Mounts inside or outside of the mixing unit
Factory calibrated for vertical mounting
Can be rotated to any of four positions for convenience in piping
Features an integral mounting bracket and includes a mounting strap and bracket for mounting to ductwork