Brass radiator valve for heating line system. Union MXF 3/4 inch BSP threaded connection, angle flow MXF 3/4 inch or 1 inch Union connection, angle flow, 1/2, 3/4 to 1 inch valve for heating pipeline system CW617n Brass body and brass stop, nickle plated main body,Main flow DN15, DN20, DN25Threaded main pipe connection size 3/4, 1 and 1-1/4 inch BSP, NPT, or customizedEqual and reducing