Double Check Valve - Chrome - Female x Male & Male x Female
Part Number: ED235 / ED235WT
• Features & Benefits • Approval Certificate
Product Overview
Double Check Valves (type ED) with chrome plated brass body. The female inlet type are primarily intended for backflow protection from flexible hoses and are usually fitted between the servicing valve (or tap) and a hose. The male inlet types are often suitable for fitting to a tap tail.
Double Check Valves (type ED) are suitable for Fluid Category 3 risks, such as domestic bath / shower hoses. “Domestic” includes hotels but excludes healthcare. This risk arises where the outlet can become submerged.
These valves can quickly be fitted. An EPDM washer is supplied with each device to facilitate fitting to flat-faced outlet.
See also... Automatic Flow Limiter model AFLE
Now available with male inlet and female outlet model ED235MF
Specification Clause
Every shower hose that is potentially submergible in Fluid Category 3 bath water, shall be fitted with a Water Regulations approved Double Check Valve assembly1 as manufactured and distributed by Arrow Valves Ltd - Tel 01442 823123 www.arrowvalves.co.uk. The pressure drop across the assembly shall be less than 0.08 m at 1 m/s pipe velocity. The body shall be chrome plated brass with female inlet and male outlet.
Insert as required:
[1] incorporating a white (0.13 Lt/s) Automatic Flow Limiting Cartridge
[1] incorporating a black (0.1 Lt/s) Automatic Flow Limiting Cartridge
[1] incorporating a blue (0.17 Lt/s) Automatic Flow Limiting Cartridge
Application
ED devices provide prevention of fluids in category 3 -
• Showers - domestic
• Baths with shower hose – domestic
Additional Resources
Tutorial:
• Showers, Baths & Bidets
Presentation:
• Backflow Mini Presentation
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