The pressure vessel is designed to provide a storage facility and pressure reservoir for water at temperatures up to 70ºC. Common uses are in water booster sets,
heating pressurisation and fi ll sets. The vessel incorporates a Butyl diaphragm mounted in a mild steel shell.
This method of construction eliminates any contact between the stored water and the steel shell of the vessel, and is therefore suitable for use with potable water.
The vessel is supplied pre-charged, but this pressure may require adjustment to suit the site conditions. This adjustment must be made with the vessel isolated
from the system, and before fi lling with water. All pressure vessels should be installed with an isolating valve and drain cock.