Flanged ball valve, Pneumatic ball valve, Cinder ball valve. Pneumatic Cinder Ball Valve The working temperature is at below 350 Degree Celsius. Standard Compliance Design and manufacture standard: GB/T, ANSI, JIS, DIN Specifications: 1). Pressure: 1.0-1.6 MP Class: 150-300Lb 2). Size: 200-500mm 3). Body, Bonnet, material: Carbon Steel, Stainless Steel