1.Size: 1/4"--2" 2.Working pressure: PN 1.6-4.0MPa 3.Temperature range: -40癈~350癈 4.Applied medium: water, oil, air, some corrosive liquid like nitric acid and acetum. 5.Ball material: Steel/carbon steel/304/Iron/Brass 6.Package:Gunny bag / carton 7.Available in stock