Griswold's 811SP Series

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The 811SP Series are self-priming centrifugal pumps available in various sizes, capacities, and materials to fit virtually any process fluid application. With double the wear area of enclosed models, the 811SP Series impeller offers superior handling of solids, corrosives, and abrasives. Back pump-out vanes reduce hydraulic loads and seal chamber pressure. They come with a wide range of sealing options coupled with seal chambers and stuffing boxes selected for service conditions to improve lubrication and heat dissipation of seal faces, maximising pump uptime.

KNOW MORE ABOUT GRISWOLD 811SP SERIES

Design Advantages

  • Component interchangeability with Griswold 811 ANSI Series
  • Designed to meet the requirement of ASME B73.1
  • Extra-large capacity, epoxy-coated oil
  • Quick priming time and easy drainage
  • Dynamically balanced fully open impellers with rear-adjustment capability
  • INPRO® oil seals keep outside contaminants from lubrication media

Available Options

We customise pumps according to your specific application. Get in touch with us today to get a complete list of your options.

  • Multiple seal options available
  • Size and configuration options
  • Epoxy coating
  • Heavy-duty power frames
  • Baseplate/mounting
  • Accessories and spare parts

Key Specifications

MAX FLOW 295 m3 /hr
MAX HEAD 115 m
MAX TEMPERATURE 260°C
EFFECTIVE STATIC LIFT 7.5 m
Casing pressure ratings meeting pressure ratings of Class 150 flanges

Applications

  • Industrial Sump
  • Mine Dewatering
  • Chemical Transfer
  • Bilge Water Removal
  • Coal Pile Drainage
  • Tank Car Unloading
  • Petroleum Transfer

PRINCIPLE OF OPERATION

Centrifugal pumps are used to induce flow or raise a liquid from a low level to a high level. These pumps work on a very simple mechanism. A centrifugal pump converts rotational energy, often from a motor, into energy in a moving fluid.
The two main parts that are responsible for the conversion of energy are the impeller and the casing. The impeller is the rotating part of the pump, and the casing is the airtight passage that surrounds the impeller. In a centrifugal pump, fluid enters the casing, falls on the impeller blades at the eye of the impeller, and is whirled tangentially and radially outward until it leaves the impeller into the diffuser part of the casing. While passing through the impeller, the fluid is gaining both velocity and pressure.

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