8 Technical Reference
8.1 Motor data
Feature Description
Motor type • 3085.092/.160/.172/.183/.190/.760/.770/.891: Squirrel-cage induction motor
• 3085.800/.810/.820/.830/.900/.910/.960/.970: Line-started, permanent-magnet
synchronous motor
Frequency 50 or 60 Hz
Supply 1-phase or 3-phase
Starting method • Direct on-line
• Star-delta
• Soft starter
Star-delta
Maximum starts per hour 30 evenly spaced starts per hour
Code compliance IEC 60034-1
Voltage variation without
overheating
±10%, provided that it does not run continuously at full load
Voltage imbalance
tolerance
2%
Stator insulation class H (180°C [360°F])
Application limits
Data Description
Liquid temperature 40°C (104°F) maximum
The pump can be operated at full load only if at least half the stator housing is
submerged.
Warm-liquid version: 70°C (158°F) maximum (3085.160, 3085.183, 3085.760)
Ex-approved pumps: 40°C (104°F) maximum
Liquid density 1100 kg/m³ (9.2 lb per US gal) maximum
pH of the pumped media
(liquid)
5.5–14
Depth of immersion 20 m (65 ft) maximum
Other For the specific weight, current, voltage, power ratings, and speed of the pump, see the
data plate of the pump.
8 Technical Reference
Flygt 3085 Installation, Operation, and Maintenance Manual 67
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