Wilo - Atmos GIGA-B 50/105-0,55/4 Centrifugal Pump - 400V - Three Phase

Single-stage glanded centrifugal pump in monobloc design for installation on a base including foot on the pump housing.

Low-oscillation and low-noise monobloc design with lanternn and rigidly connected standard motor.

With force-flushed, bidirectional bellows mechanical seal (from 37kW/4-pole, optionally available with a cartridge mechanical seal in back pull-out design for mechanical seal replacement without dismantling the motor) and cavitation-reducing impeller.

Flange with R1/8 pressure measuring connections. All grey Cast Iron components are cataphoretic-coated.

Pumps with motors ≥5.5KW are equipped as standard with a PTC thermistor sensor for motor protection.

The motor terminal box ≤ 7.5 KW can be made of metal or plastic. If a metal terminal box is absolutely necessary, please order the appropriate special variant. The motor terminal boxes > 7.5 KW are always made of metal.

Real-world product applications

• General water transfer between tanks and systems
• Supplying water for domestic or light commercial use
• Supporting irrigation and washdown duties
• Circulating or transferring water in utility applications
• Assisting with general pumping and transfer tasks

Key Product Features

• Min. fluid temperature: -20C
• Max. fluid temperature: 140C
• Min. ambient temperature: 0C
• Max. ambient temperature: 40C
• Maximum operating pressurePN: 16bar
• Note on dimensioning: 16 bar. to 120 C, 13 bar. to 140 C
• Minimum efficiency index (MEI): ≥0,4
• Mechanical seal for pumping water up to = +140C. Up to T ≤+40C, a glycol admixture of 20% to 40% by volume is permissible. An alternative mechanical seal must be provided for water-glycol mixtures with a glycol content of >40% to max. 50% by volume and a fluid temperature of >+40C to max. +120C or other fluids that differ from water. When using water-glycol mixtures, the use of an S1 variant with a corresponding mechanical seal is generally recommended

Wilo (est. 1872) is a German manufacturer delivering building-services and water-management pumps. Their ranges include circulators, booster sets, drainage pumps and sewage systems. Wilo products are commonly used in heating and cooling circulation, pressure boosting, commercial building services and public water infrastructure.