Melimatic Compression Lead Locs Brass compression Lead Locs are used to connect lead pipe to copper pipe. Performance data Maximum end load not less than 2 kiloNewtons (495 pounds) Maximum internal static pressure = 30 bar (441 lbf/in2) Rated pressure = 20 bar (245 lbf/in2) Maximum 0 Ring temperature = 80 deg. centigrade Manufactured in accordance with ISO 9001 WRAS approved.