Double Check Valve Brass Comp – 172

Economy type Double Check Valve (ED device) with DZR brass body and compression ends.

Backflow prevention for fluids in categories 1 – 3 (refer to Scheduled 1 of Water Regulations July 1999) Supply to flats and apartments – refer to Branch Valve Domestic Washbasins, Baths and Showers – refer to ED235 Domestic Clothes and Dishwashing machines (houses only) CWF Primary and Heating circuits (houses only with removable quick fill loop) – see Filling Valve with CA device Hose Union taps (houses only – check valves in taps illegal)

• Material Brass
• Powered No
• Test Points Non-Verifiable

Every Double Check Valve shall be economy type – model ED172 – with compression connections as distributed by Arrow Valves Ltd – Tel 01442 823123 www.arrowvalves.co.uk. The body of the valve shall be DZR brass with compression connections.
Note – sizes 15 mm & 22 mm only.