MODEL PBD-100 PARALLEL BLADE DAMPER - NCA Manufacturing
MODEL PBD-100 PARALLEL BLADE DAMPER - NCA Manufacturing
MODEL PBD-100 PARALLEL BLADE DAMPER - NCA Manufacturing
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<strong>MODEL</strong> <strong>PBD</strong>-<strong>100</strong><strong>PARALLEL</strong> <strong>BLADE</strong> <strong>DAMPER</strong>PRESSURE DROP - INCHES OF WATER (In. W.C.)2.521.51.0 .9.8.7.6.5.4.3.25.2.15.1.09.08.07.06.05.04.03.025.02.015<strong>DAMPER</strong> SIZE 36 x 36<strong>DAMPER</strong> SIZE 24 x 24<strong>DAMPER</strong> SIZE 12 X 12© 1999 <strong>NCA</strong> <strong>Manufacturing</strong>Pressure drop testing was conducted by an independent laboratory in accordance with the AMCA Standard 500-D, Fig. 5.3ductwork upstream & downstreamPRESSURE DROP<strong>PBD</strong>-<strong>100</strong> - 03-05.01<strong>100</strong> 150 200 300 400 500 700 900 1500 2000 3000 4000 6000<strong>100</strong>0VELOCITY THROUGH FACE AREAPressure (In. W.G.)54321PRESSURE LIMITATIONS00 12 24 36 48Section Width (In.)VELOCITY THROUGH FACE AREAPressure & VelocityLimitations presented inthe adjoining graphs areconservative in order toavoid mis-applications.Please contact factory forapplication guidance ifyour requirements exceedpublished limitations.Velocity (FPM)VELOCITY THROUGH FACE AREAVELOCITY LIMITATIONS3000250020001500<strong>100</strong>00 12 24 36 48Section Width (In.)LEAKAGE<strong>DAMPER</strong> SIZE 36 x 4810987Leakage Performance test wasconducted by an independentlaboratory in accordance with AMCAStandard 500-D and is expressed asCFM/SQ. FT. of damper face area.Damper requires both blade edgeseals and jamb seals to achieveleakage performance depicted.STATIC PRESSURE65432.521.51.01 1.5 2 3 4 5 7 9 15 20 30 40 6010LEAKAGE IN CFM/SQ. FT.<strong>NCA</strong> MANUFACTURING, INC. 1036 SOUTH JUPITER ROAD GARLAND, TEXAS 75042 TEL. 972-276-5002 FAX 972-276-6747
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