Griswold’s 811SP Series

Griswold’s 811SP Series

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


295 m3 /hr 


115 m 




7.5 m 

Casing pressure ratings meeting pressure ratings of Class 150 flanges 

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

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. 



All-Pumps offers bespoke solutions to your manufacturing processes. Whether you need a new pump, replacement part, repair services, system design, or monthly maintenance, call our professionals! 

Our customer support services set us apart, we take responsibility to give you the best experience possible. 

How our experts can help you: 

  • Design and cost a system or project 
  • Customise and engineer solutions for your specific application 
  • Provide spare parts and maintenance services
  • Conduct Site-Wide Pump Health Audits with our Nexus Program
  • Pump Manuals and Technical Guides 

And so much more! 

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