Spec Sheet

File Name CAP521
Date Apr. 20, 2013
Rev. A
FS-CURTIS, CURTIS-TOLEDO, INC x 1905 Kienlen Avenue, St. Louis, Missouri 63133 x +1 [phone] x Fax [phone]
www.fscurtis.com
ML7.5 SIMPLEX
TECHNICAL DATA
Capacity and power: ISO-1217(1996 annex #C)
Normal working pressure - psi 175
Capacity at normal working press - cfm 28.7
Basic Pump
Model C79A
Stage 2
Lubrication type Centro-Ring Pressure lubrication
Valve type Disc Valve
RPM (min – max) – rpm 500 - 900
Outfit RPM 870
BHP – HP 5.53
Bore (LP/HP) – inch 5” – 2.5”
Stroke – inch 3.5”
Inlet size 1 1/4"NPT
Discharge size 7/8” OD
Sheave OD 16.375”
Sheave PD 16.125”
Number of belts 3
Belt section A
Low oil sight glass N/A
Oil quantity 4 Pints
Unloaders and Method Suction Head
Noise level – dB(A) 82
Moto
r
1-230V 3-200V 3-230V 3-460 3-575V
Enclosure IP21
IP23 IP23 IP23 IP23
Insulation Class F
F F F F
Efficiency - % 84.5 88.5 91 91 91
Nominal rated power – HP 7.5 7.5 7.5 7.5 7.5
Speed of rotation - rpm 1755 1750 1770 1770 1770
FLA 30.6 23.0 19.4 9.7 7.8
Service factor 1.15 1.15 1.15 1.15 1.15
Locked rotor current – A 218 163 142 71 57
Power Factor 94 79 79 79 79
Installation condition
Allowed ambient temperature min - max - °F
32-104
Compressor dimensions
Air Receiver Type Vertical Vertical UP Horizontal Horizontal UP
Air receiver size (Gal) 80 80 80 80
Compressor outlet 1/2” NPT 1/2” NPT 1/2” NPT 1/2” NPT
Length – inch 36 39 67 67
Width – inch 30 31 26 29
Height – inch 75 76 49 50
Weight – Lbs. 650 700 650 700
Air Cooled Aftercooler (Option)
Availability Yes
Air cooled aftercooler CTD - °F
18
Remark:
1. Capacity (FAD) measured in accordance with ISO 1217, Ed 3, Attachment C 1996, Ref. condition: Dry air, suction pressure 1 bar.
2. Sound Pressure Level in accordance with ISO 2151, edition 2004 with a tolerance of 3dB(A).
3. Due to continuous product development at FS-CURTIS, design and specifications are subject to change without notice.