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Table 11 — 50RTP14 Blower Performance Data (cont)
LEGEND
NOTES:
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard
Motor, C = High RPM/Standard Motor, D = Standard RPM/
Large Motor, E = High RPM/Large Motor
2. Unit shipped with standard drive package with drive sheave 2.5
turns open unless otherwise requested. Field adjustment may
be required for specified CFM.
3. ISO/AHRI rating point with standard drive package and drive
sheave open 3.0 turns at .30 ESP.
4. Performance data does not include drive losses and is based
on sea level conditions.
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,
rated at 208 volts for 208-230 volt units.
AIRFLOW
(cfm)
ESP
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
0.00.10.20.30.40.50.60.70.80.91.01.11.21.31.41.51.61.71.81.92.0
6400
bhp 1.43 1.54 1.66 1.78 1.90 2.05 2.21 2.37 2.52 2.62 2.73 2.83 2.95 3.13 3.28 3.47 3.65 3.76 3.87 3.97 4.08
Sheave/MotorBBBBAAAAAAACCEEEEEEEE
rpm 571 604 636 664 696 724 752 780 808 832 856 880 904 928 948 972 996 1016 1036 1056 1076
Turns Open 5.5 4.5 3.5 2.5 5.5 4.5 4.0 3.0 2.5 1.5 1.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0
6600
bhp 1.55 1.68 1.83 1.96 2.12 2.24 2.36 2.47 2.61 2.74 3.00 3.01 3.17 3.34 3.48 3.66 3.82 3.94 4.06 4.16 4.28
Sheave/MotorBBBAAAAAAADEEEEEEEEEE
rpm 583 616 648 676 708 736 764 788 816 840 864 888 912 936 956 980 1004 1024 1044 1060 1080
Turns Open 5.0 4.0 3.0 6.0 5.0 4.0 3.5 3.0 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.0 2.5 2.5 2.0 1.5 1.0
6800
bhp 1.68 1.80 1.94 2.08 2.23 2.37 2.52 2.68 2.79 3.00 3.07 3.10 3.28 3.47 3.63 3.82 3.97 4.11 4.25 4.38 4.52
Sheave/MotorBBBAAAAAADDEEEEEEEEEE
rpm 600 628 660 692 720 744 772 800 824 848 872 896 920 944 964 988 1008 1028 1048 1068 1088
Turns Open 4.5 3.5 2.5 5.5 4.5 4.0 3.0 2.5 2.0 1.0 1.0 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.5 1.0
7000
bhp 1.79 1.97 2.12 2.3 2.4 2.53 2.65 2.76 2.9 3.10 3.17 3.31 3.50 3.66 3.86 4.05 4.18 4.31 4.44 4.57 4.69
Sheave/MotorBBAAAAAAADEEEEEEEEEEE
rpm 612 644 672 704 728 756 784 808 832 856 880 904 928 948 972 996 1016 1036 1056 1076 1096
Turns Open 4.0 3.0 6.0 5.0 4.5 3.5 3.0 2.5 1.5 1.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 1.0
bhp — Brake Horsepower
ESP — External Static Pressure