815B | Bronze Centrifugal Close Coupled Pump

• Durable Cast Bronze Construction:
  Ensures long-lasting performance and resistance to wear and tear. 
• Rugged Integrated Mounting Base:
  Provides stability and ease of installation. 
• Corrosion Resistant Stainless Steel Shaft:
  Enhances the pump's longevity and reliability. 
• Maintenance Friendly Back Pullout Design:
  Simplifies servicing and reduces downtime. 
• Closed Vane Balanced Bronze Impeller:
  Offers smooth and quiet operation. 
• Multiple Mechanical Seal Choices:
  Accommodates a wide range of clean and contaminated fluids. 
• Flexible Outlet and Drain Orientation:
  Allows for easy installation in various configurations. 
• O-Ring Housing Seal:
  Eliminates gasket problems and ensures a secure seal. 
• Compatibility with NEMA 56C or IEC 90 B14 Face Mount Motors:
  Provides versatility in motor selection. 
• Complete Pump-Motor Units Available:
  Simplifies procurement and installation. 

DRIVE

This close-coupled pump uses a standard NEMA 56C motor with no base. Single phase motors are non-reversible and are wired for the proper pump rotation which is counter-clockwise looking at inlet end of pump. See the dimensional drawing. Three phase motors must be checked out for proper rotation when pump is installed. Interchanging of any 2 wires in a 3-phase system will reverse motor rotation.

LIQUIDS & TEMPERATURES

The special pump alloys used provide corrosion resistance to many liquids including water, water solutions, and a wide range of commercial chemicals. Questions as to the chemical compatibility of special liquids should be referred to the factory.

Viscous liquids with a maximum viscosity of 2000 Saybolt Seconds Universal can be pumped. However, when pumping viscous liquids as compared with water, a reduction in flow and pressure occurs and the required horsepower rate increases. Liquids heavier than water require additional horsepower in direct proportion to the increase in specific gravity. Liquids contaminated with small solids or abrasives can be handled, but a reduction in mechanical seal life must be expected. The pump uses a mechanical type shaft seal with a nitrile rubber element. It is suitable for water, oils, and some mild solvents and it is limited to 212°F (100°C). fluoroelastomer seals and Polytetrafluoroethylene (PTFE) seals are available for severe solvents, difficult chemicals, and elevated temperatures.

SUCTION LIFT

These centrifugal pumps are not self-priming. They must be installed below the liquid level so that the liquid flows to the pump by gravity (flooded suction). However, if a foot valve is used at the beginning of the suction line, and all air is bled from the pump by manual priming, the pump will lift on the suction side up to 15 feet (4.6 m). Such a system relies entirely on the non-leaking foot valve for starting capability.