Composite bottles
Aqua Service almost always uses composite bottles. These consist of an inner polyethylene casing and a reinforced fibreglass outer casing. The bottles are designed in such a way that they may withstand a maximum operating pressure of 10 bar. They are available in volumes from 4 to 6600 L. Their maximum operating temperature may not exceed 50°C.
The main types
- Bottles without a base with a 2”1/2 top opening. These are mainly used in compact domestic water softeners.
- Bottles with a base and a 2”1/2 or 4” top opening. These are mainly used in domestic duobloc or duplex appliances but generally with industrial applications.
- Bottles with a base and a 4” top and bottom opening. Suitable for the construction of industrial water softeners or filters with a side-mounted control valve.
- Bottles with a base and a 6” top opening with a flange. Intended for major industrial appliances with a control valve on the top of the bottle.
- Bottles with a base and a 6” top and bottom opening with a flange. For major industrial appliances with a side-mounted control valve.
- In addition to composite bottles there are also polyester or GRP and vinyl ester bottles.

