The pressure vessel is designed to provide a storage facility and pressure reservoir for water at temperatures up to 70’C. Common uses are in water booster sets, heating pressurisation and fill sets. The vessel incorporates a Butyl diaphragm mounted in a mild steel shell. This method of construction eliminates contact between the stored water and the steel shell of the vessel.

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 filling with water. All pressure vessels should be installed with an isolating valve and drain cock.

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• Maintenance : To retain efficiency, all vessels should be serviced regularly. Domestic applications are recommended a service once a year, commercial applications are recommended a twice yearly service.

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