... 32.0MPanominal diameter:15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250medium temperature: -29°c ... gas, city gas and corrosive / non-corrosive medium Material for Main Parts descriptionmaterialDescriptionMaterialbody, bonnetWCB, 1Cr18Ni9Ti, 22Cr, 316Ltrim sleeveforged steel ... . any other special requirementsIntroduction of Our Manufactory Best price for Double acting throttle stop valve