Viking : Single and Double External Gear Pump

Viking's External Gear Pumps deliver longer seal and bearing life by preventing shaft movement and wear.

For almost 100 years, Viking Internal Gear pumps have been known for reliability.

For 35 years, Viking SG Series External Gear pumps have followed in that proud tradition, with the advantages of higher developed pressures and higher speeds. The SG Series pumps were designed to ensure reliability in industrial process applications. Because seal leakage is the most frequent cause of pump downtime, the SG Series minimizes shaft movement to significantly lengthen seal life. Radial (side-to-side) movement, or misalignment, is prevented by close coupled motor mounts or outboard bearings for foot-mounted pumps. Axial (back-and-forth) movement is minimized by spur-type gears, instead of helical gears which cause gear thrust on mating components. As standard equipment, the SG Series' anti-friction needle bearings eliminate wear that journal bearings experience at startup and shutdown - when the hydrodynamic film of liquid is absent. SG series pumps have an extensive range of options to ensure the right seals, bearings and other features for the application.

Performance Criteria

• Capacity: To 45 m³/hr
• Pressure: To 172 bar intermittent
• Temperature: -40°C to 260°C
• Viscosities: To 250,000 cSt

Applications
External gear design provides high-speed, high-pressure capabilities in low-capacity applications. Direct drive with 2950, 1450 or 950 rpm motors

Models
SG-04, SG-05, SG-07