Sullair ShopTek ST18 - Section 3: Specifications; Machine Specifications; Lubricant Specifications

Section 3
ST18 & ST22 (U.S.A. & Mexico) Operation & Maintenance Manual 3: Specifications
88291013-137 R05
Subject to EAR, ECCN EAR99 and related export control restrictions. 17
Specifications
3.1 Machine specifications
3.2 Lubricant specifications
The oil used as a lubricant in Sullair’s rotary screw com-
pressors must have the following properties:
•Low foaming
• Good resistance to emulsification
• High oxidation resistance
• Viscosity of 10.5 cSt at the compressor’s oper-
ating temperature
Table 3-1: Compressor specifications
Model ST18 ST22
Capacity at full load pressure 2.8 m
3
/min (100 cfm) 3.6 m
3
/min (127 cfm)
Rated pressure 8.0 bar (115 psi) 8.0 bar (115 psi)
Maximum working pressure 8.6 bar (125 psi) 8.6 bar (125 psi)
Relief valve setpoint 10 bar (145 psi) 10 bar (145 psi)
Voltage & frequency 460/230V 60Hz or 460V 60 Hz
Air end type Single stage, oil injected rotary screw
Configuration Gear driven with integrated inlet modulation
Motor type ODP (IP23)
Motor rating 18.5 kW (25 hp) 22 kW (30 hp)
Motor nominal speed 1770 rpm
Starting mode Y-∆ (Y-delta)
Service factor 1.15
Ambient temperature Between 4° and 40°C (40° and 104°F)
Lubricant Sullube
®
Lubricant volume 11 L (3 gal)
Service connector NPT 1″
Moisture drain connector NPT ⅛″ (moisture separator shipped loose)
Machine weight 660 kg (1455 lbs) 662 kg (1460 lbs)
Machine dimensions (L × W × H) 1340 × 740 × 1300 mm (52.8 × 29.1 × 51.2 in)
Package dimensions (L × W × H) 1460 × 910 × 1535 mm (57.5 × 35.8 × 60.4 in)
Table 3-2: Lubricant specifications
Synthetic oils Ambient temperature
Sullube
®
(factory fill) Up to 40°C (104°F)
WARRANTY INFORMATION
Mixing of fluids other than Sullube
®
will void the
compressor’s warranty.