Wilo-Atmos GIGA- N50/250

Standard Cast Iron Impeller optional Bronze/Stainless steel 

Speed : 2pole & ​4pole 

Design

Single-stage centrifugal pump in accordance with EN 733, bare shaft version.

Hydraulics with axial suction port and radial discharge port, support foot and flanged bearing bracket.

Shaft sealing via bidirectional bellows mechanical seal up to max. 140 °C. Grey cast iron housing, stainless steel shaft, grey cast iron impeller. Cataphoretic coating as standard for all cast iron components in contact with fluid.

Materials

• Pump housing and lantern. Standard: EN-GJL-250
• Impeller: Standard: EN-GJL-200; others on request
• Shaft: 1.4021
• Mechanical seal: AQEGG; other mechanical seals on request

Technical data

• Permissible temperature range: -20 °C ... +140 °C
• Mains connection 3~400 V, 50 Hz
• Protection class IP55
• Nominal diameter DN 32 ... DN 150
• Max. operating pressure 16 bar

Application

• The pumping of heating water, chilled water and water-glycol mixtures without abrasive substances in heating, chilled water and cooling systems.
• Applications for irrigation, building services, general industry, power stations, etc.

Scope of delivery

• Bare shaft pump

​Optional

• Pump on baseplate with coupling and coupling guard, without motor
• Completely mounted pump on baseplate with electric motor

Options

• Variant - P5 without spacer coupling
• Other materials and versions on request
• Other voltages and frequencies available on request.

Your advantages

• The high overall efficiency through improved hydraulics and the use of IE3/IE4 motors enables energy savings
• Suitable for drinking water supply
• Cataphoretic coating of all cast components for high resistance to corrosion and long service life (not available for drinking water versions)
• Universally usable thanks to standardized dimensions, a range of motor options and impellers made of different materials
• Easy maintenance thanks to user-friendly spacer coupling in back pull-out design
• High operational reliability thanks to improved impeller construction for pressure reduction