Description Backflow Prevention Valve to fit 110mm (DN100) pipe. This valve prevents backflow automatically and meets EN13564-1:2001. The valve opens to the full diameter of the pipe to reduce the possibility of blockage, and the lid can be removed for maintenance if necessary. A closure lever allows the valve to be locked shut if required. This valve is suitable for rainwater overflows, foul and stormwater drainage. It is an effective anti-flooding device when installed on properties susceptible to flooding from rivers. Fit at the debris outlet/overflow of underground tanks to prevent groundwater entering the tank. Material : Polypropylene, with stainless steel valve plate and rubber seals Weight : 0.88kg – Max Pressure : 0.5bar
