Privacy Policy

Effective Date: August 26, 2025

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blue background, a set of control and backdraft dampers standing out

Pottorff > Air Control Dampers > Air Control Dampers > Airflow Measuring Stations > AM-45-PD

Air Control Dampers

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Airflow Measuring Stations

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DOCUMENT CART

Model AM-45-PD

Airflow Measuring Station
Steel Airfoil - Pressure Differential

AM-45-PD airflow measuring stations employ a low leakage control damper with highly accurate airflow measuring equipment in a single compact assembly. The Pottorff CD-45 control damper is factory mounted with a modulating 24V actuator, multi-point self-averaging pressure sensing probes, and VELTRON DPT 2500-plus transmitter to provide airflow measuring along with the ability to control airflow all in one easy to install assembly.

AM-45-PD Steel Airfoil - Pressure Differential

Standard Construction

Damper Frame: 5" x 1" (127 x 25) galvanized steel hat channel with interlocking corner gusset. Equivalent to 13 gauge (2.4) channel frame. Low profile head and sill are used on sizes less than 13" (330) high.

Damper Blades: 6" x 14" gauge (152 x 2.0) equivalent galvanized steel - airfoil. Parallel.

Sleeve: 16" x 20 gauge (406 x 1.0) galvanized steel.

Damper Axles: 1/2" (13) diameter plated steel hex.

Damper Linkage: Concealed in frame.

Damper Bearings: Synthetic.

Seals: Silcone blade edge seals integrally rolled and mechanically fastened to blades. Flexible metal jamb seals.

Damper Actuator: Modulating 24V, spring close, exteenal mount.

Sensor Type: Pressure Differential.

Transmitter: VELTRON DPT 2500-plus.

Minimum Size: 8" x 6" (203 x 152)

Maximum Size:
Single Section: 48" x 72" (1219 x 1829)
Multiple Section: 144" x 144" (3658 x 3658)

Ratings

Maximum System Pressure: 2 in. wg. (0.50 kPa)

Leakage:
3.0 cfm/ft² @ 1.0 in. wg. (0.02 m³/s/m² @ 0.25 kPa)
4.0 cfm/ft² @ 1.0 in. wg. (0.02 m³/s/m² @ 0.25 kPa)
8.0 cfm/ft² @ 4.0 in. wg. (0.041 m³/s/m² @ 1.0 kPa)
9.7 cfm/ft² @ 6.0 in. wg. (0.049 m³/s/m² @ 1.5 kPa)