Unvented system control requirement for unvented cylinders 2.1 bar pressure reducer cartridge 8 bar rotating expansion relief valve Maximum working pressure: 16 bar Maximum temperature: 45°C, Manufacturer: Oso Hot Water
Unvented system control requirement for unvented cylinders 2.1 bar pressure reducer cartridge 8 bar rotating expansion relief valve Maximum working pressure: 16 bar Maximum temperature: 45°C, Manufacturer: Oso Hot Water
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