... , 150mm, 200mm 3) Factory direct sales wet alarm valveSpecificationAlarm Check Valve, Nominal Dia.:DN80mm,DN100mm(4''),125mm(5''),150mm(6''),200mm ... ' request.Delivery Detail15-30days based on the quantitySpecificationsButterfly Valve (Internal structure) 1.16years experience, valve factory 2.Standard: ANSI,ASME,DIN,API609 ...