tankless waterheater好用吗

20 Carr Road, Three Kings Auckland, New Zealand PO Box 27-555, Mt Roskill Auckland 1440 Ph: +64 9 624 1115sales@macdonaldindustries.co.nz

tankless waterheater中文

350 - Standard model c/w 2 x ball valves350L - Less ball valves350S - Supplied with 2 x ball valves and 1 x Y strainer350F - Supplied with Filterball inlet valve and 1 x outlet ball valve

The Wilkins model 350 double check valve assembly with its revolutionary removable pressure vessel, is designed to protect against backpressure and backsiphonage of polluted water into the potable water supply. In addition to the removable pressure vessel, the 350 series offers low head loss, short lay length and top mounted test cocks resulting in superior valve box installation flexibility. The removable pressure vessel allows for the most rapid repair of any valve in the Backflow Preventer marketplace.  The blow-out, flush fitting great simplifies start-up flushing and winterisation blow-outs (where needed). The 350 is designed for applications where a health hazard does not exist and is suitable for use in residential, commercial, industrial and irrigation applications where a double check assembly is called for.