WRAS approval for pressurisation units

12 October, 2009

Armstrong’s 3750 range of pressurisation units have received WRAS (Water Regulations Advisory Scheme) approval. This approval confirms that these units comply with UK water-authority regulations and that, once installed, there is no need for annual inspections.

These pressurisation units meet the requirements of a type AB air gap and the performance criteria specified in BS EN13077. The cistern design ensures protection against backflow by fluids containing contaminants, up to fluid category five.

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WRAS approval for pressurisation units

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