To eliminate installation time on site WILO have developed the modular expansion system which when ordered with a comfort pressurisation unit provides a base-mounted pressurisation system with expansion vessel(s), interconnecting pipework, lockshield gate valves and drain cock.

Expansion Vessels

Manufactured to BS4814 with removable diaphragms, maximum working pressure of 8 bar.

Max working temperature 100°C.

Wilo would suggest the use of an intermediate vessel in systems with flow temperature in excess of 90°C.

Vessels are WRAS approved and conform to PED.

Technical data

• Vessel volume V
  18 l
• Max. inlet pressure
  10 bar
• Make
  Wilo
• Item no.
  2815475