Hep2O HX72/15W Double Check Valve 15mm (9193F)

Hi there Usually the valves are quiet, the problem maybe down to something vibrating inside the valve. We would be more than happy to provide a FOC replacement and get this one back to look at. You can contact our technical team on 0844 856 5165. Please don't hesitate to get in touch if there is anything else we can help you with. Many thanks, The Hep2O Team

Hi there, It was designed for internal use only. However, the Hep2O product guide states that if it is installed outdoors or in an unheated environment, it should be protected from frost in accordance with BS 5422, BS6700 and BS EN 806, Water Bylaws and Building Regulations Approved Document L. Hep2O should be protected from the effects of ultraviolet radiation. If insulation has been installed to avoid freezing this provides adequate protection. Where insualtion is not used, paint or covering is recommended. Please don't hesitate to get in touch if there is anything else we can help you with. Many thanks, the Hep2O team

Hi there, the seals are made out of Peroxide cured EDPM. Diluted bleach cannot be used in Hep2O. Hope this helps, if there's anything else you need to know don't hesitate to get in touch. Thanks, Hep2O team

Hi DLBP, thanks for your question and apologies for the delay in getting back to you. Yes, the Hep2O range can be used for both Hot and Cold water and central heating. The double check valve is only suitable for Hot and Cold water systems. Hope this helps, don't hesitate to be in touch if there's anything else you need to know. Thanks, Hep2O team.