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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
137 square inches of free area and a 4 inch no hub outlet
The pressure is rated 600 psi (41 bar) WOG and the maximum temperature is 406 F (208 C) at 100 psi (6
Controls the thermal expansion of hot water and maintains system pressure
Z400SC-3NH
Watts B911T-M3 (W/PRESS) 1/2 - Part of the 911 Series chat-hdpe 137 square inches of freeThis 1 2 inch bronze combination fill valve and backflow preventer is for use in commercial and residential hydronic heating systems to provide make up water to the boiler, and prevent backflow when supply pressure falls below system pressure. It consists of a bronze backflow preventer, model 9D and a bronze feed water pressure regulator, model 1156F, in one pre assembled unit. The high capacity fill valve provides quick system filling and purging. It
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