Where approved by code, Watts recommends a custom engineered Watts PVS Series water supply valve station consisting of two or more 719 Series valves piped in parallel to serve a larger supply main.

• 在符合有关规定的地方，美国瓦茨建议常规设计美国瓦茨PVS系列水供应阀门站，这种总成由两个以上的719系列阀门通过管道并联而成，用于更大的供应主管道。