Ductulator®
Order Number: 94.24
Price: $10
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Hand held rotating calculator used for sizing supply and return duct systems using the equal friction design method. Includes scales for friction loss per unit length, air volume, air velocity, round duct diameter, and rectangular duct diameters. One side uses I-P units, the other side uses SI units. Includes a protective sleeve with ASHRAE recommended design air velocities for system components/applications.
Psychrometric Charts
Chart used for determining properties of moist air and analyzing air conditioning processes.
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Order Number: 1-43.190
Price: $7.50
standard altitude (29.921 in. Hg), 11” x 17” pad of 25 sheets, I-P units, includes "coil curves"
Order Number: 1-43.191
Price: $15.00
standard altitude (29.921 in. Hg), 11” x 17” laminated chart, I-P units, includes "coil curves"
Order Number: 1-43.192
Price: $5.00
standard altitude (29.921 in. Hg), 8.5” x 11” pad of 25 sheets, I-P units, includes "coil curves"
Order Number: 1-43.195
Price: $5.00
high altitude (24 in. Hg), 8.5” x 11” pad of 25 sheets, I-P units, includes "coil curves"
Order Number: 1-43.196
Price: $7.50
standard altitude (101 kPa), 11” x 17” pad of 25 sheets, SI units
Order Number: 1-43.197
Price: $15.00
standard altitude (101 kPa), 11” x 17” laminated chart, SI units
Order Number: OSA 214 E
Price: $7.50
standard altitude (101 kPa), 8.5” x 11” pad of 25 sheets, I-P units, includes "coil curves"
Equilibrium Chart for Lithium Bromide Solutions
Chart used for determining properties of a lithium bromide solution used in the absorption refrigeration cycle.
Order Number: 1-43.198
Price: $15
11” x 17” laminated chart, I-P units
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