Overflow Valve UV 4.1 Standard valve, cast body For all applications.   Body GG-25, GGG-40, GS-C25.. PN........... 16 - 40 DN........... 15 - 150 p1........... 0,02 - 10 bar Kvs......... 4 - 160 m3/h T............. 130/200°C data sheet      sales text