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Variable Flow Water System Design

Key areas
Course content
Learning outcomes
Who should attend
Course timings
Course fees
Upcoming courses

Key Areas

The key points the training discusses are: comparison with constant flow; design margins; load diversities; terminal flow/output relationships; pipe flow loading; pipe layouts; differential pressure regulators; pump control; pump energy savings.

Course Content

Session 1

  • Introduction
  • Defining a Variable Flow Water System
  • Comparison of Constant Flow to Variable Flow
  • Variable Flow System energy savings
  • Pump and System curves for Constant and Variable Flow

Session 2

  • Design Process Margins
  • Diversity of Peak Module/Terminal loads
  • Comparison of Pump duty Constant Flow to Variable Flow
  • Thermal Load Diversity Factor
  • Typical Terminal water flow/output characteristics
  • Determining Peak Flow rates
  • Pipe layouts

Session 3

  • Pressure diagram
  • Distribution in a variable flow system
  • Pump Control
  • Pressure Differential Regulator
  • Bypasses

Session 4

  • Typical Applications
  • Questions and open discussion

Learning Outcomes

Delegates will gain an understanding to the different approaches to designing these systems to constant volume in order to achieve all the benefits possible.

Who Should Attend

  •  Heating and air conditioning engineers and those responsible for designing flow water systems
  • Technicians/draftsmen and Cadd operators

Course timings

Registration and coffee will be at 09.30
Course will start at 10.00 and finish at 17.00


Members Rate: £336 (£280 ex VAT)

Standard Rate: £372 (£310 ex VAT)


Upcoming courses

20th June - Variable Flow Water System Design - London

20th November - Variable Flow Water System Design - London


In-house training at your site

Training multiple staff at once is the most cost effective way to develop staff for organisations. All our courses can be delivered at your site (min 6 staff) at discounted rates. These In-House courses are only available in the UK and Europe. For an In-house quote please email; 
Name of course, approximate number of staff and your site address 


To contact the CIBSE Training Team with a query please

Email: or call: +44 (0)20 8772 3637