1' Yellow Brass check valve 1)colour:silver body.2)size:1/2,3/4,1"1"1/4,2"3)DN:30mm.4)material:brass body,brass ball. steel handle.5)the temperature:-40<t<120.6)the certificate:ISO9001,CE,CPU.7)the Opening/closing tests:100000 times.8)the pressure:1.6 Mpa.9)the packing: standard export packing,plastic bags,inner box,outside..