Potable Expansion Vessel Sizing Guide

A Short guide to sizing a Potable Expansion Vessel on an Unvented Mains Pressure System. 

 

The guide below has been calculated to give an estimated size of Expansion Vessel required for a mains fed potable system, this does not take in all fluctuations in systems but will give an idea of size.

Cylinder SizeExpansion Vessel Size
5-15 Litres2 Litre 
30 Litres5 Litre 
50-80 Litres8 Litre 
90-125 Litres12 Litre 
150-180 Litres18/19 Litre
210-250 Litres24/25 Litre
300 Litres35 Litre

 

For an exact sizing you will require System Capacity (Litres), Pressure Reducing Valve Pressure (Bar), PRessure Relief Valve Setting (Bar) and Maximum Working Temperature of the system (DegC) 

 

For more information on our Potable Expansion Vessels cliek the link below

Potable Expansion Vessels

 

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