Product Overview

5
Heating, air-conditioning, cooling
High-efficiency pumps (single pumps)
Wilo Catalogue A1 - 50 Hz - Circulation pumps in glandless design
Technical Data
Materials
Pump housing Grey cast iron (EN-GJL-250)
Impeller Plastic (PPS - 40% GF)
Plastic (PP - 50%
GF)
Pump shaft Stainless steel (X46Cr13)
Bearing Carbon, metal impregnated
Minimum suction head at suction port [psi] for preventing cavitation at water pumping temperature
Minimum suction head at 122 °F (50°C) 4.3 4.3 4.3 4.3 7.1 7.1 10.0 10.0
Minimum suction head at 203 °F (95°C) 14.2 14.2 14.2 14.2 17.1 17.1 21.3 21.3
Minimum suction head at 230 °F (110°C) 22.8 22.8 22.8 22.8 25.6 25.6 32.7 32.7
• = available, - = not available
Wilo-Stratos...
1.25x3-20 1.25x3-25 1.25x3-30 1.25x3-35 1.5x3-40 2x3-35 3x3-30 3x3-40