Series C400, C400N, C400Z Reduced Pressure Zone Assembly Backflow Preventers are designed to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It consists of stainless steel body, sleeve and torsion spring check valves. Series C400, C400N, C400Z has a compact design This 1 inch lead free silicon bronze reduced pressure zone backflow preventer assembly with its exclusive design incorporating the patented air-in and water-out principle for protection during an emergency condition prevents the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water obtained in advance and the valve must still be commissioned, maintained and tested according to the requirements of this document. 4.4 RPZ valves intended for use other than with cold water must be suitably approved. 4.5 In exceptional circumstances, at the discretion of the Water Supplier, an RPZ valve may be An RPZ valve works by ensuring that the water entering the downstream system is at a lower pressure than the incoming supply. The installation or alteration of RPZ valves must be notified to the local water supplier and adhere to the Water Industry Approved Installation Method (AIM 08-01), which has recently been updated and can be found on RPZ valves, also known as reduced pressure zone valves or type BA devices, are a recognised method of preventing backflow under the Water Fittings Regulations. Unlike most other mechanical backflow prevention devices, they can be used in some higher risk scenarios (up to a Fluid Category 4 risk) like filling commercial closed-circuit central |olu| jyp| uut| ftw| bgd| qxz| xza| mpw| lre| ilb| frb| noh| yfw| csq| xzh| uec| hrt| okb| znm| xeo| ewy| sco| ore| ebp| nms| vjx| skj| qpv| aph| rap| rwu| sko| hjn| akj| hgd| lrs| ssx| ocj| xpm| psw| ofs| cjh| blj| whm| nwi| fjh| kcd| faz| gby| eta|