This 1/2 in. straight pattern brass boiler drain shutoff is designed for water service use in commercial and residential hydronic heating systems. It provides positive shutoff for boiler drain or sill cock applications. This shutoff consists of a brass body construction and 1/2 in. dual connection for either solder or male IPS and 3/4 in. hose thread connection, Teflon stem packing, and cast iron handwheel. The maximum pressure is 200 psi (14 BAR) WOG and maximum temperature is 180??F (82??C).