KF dual pneumatic vacuum angle valve quotation/price $n True pneumatic angle valve is named based on its structure and characteristics. The main feature of the angle valve is that the outlet and inlet form a 90 degree right angle. Angle valves can be divided into: three-way angle valves, brass angle valves, flange angle valves, piston angle valves, sanitary pneumatic clamp angle valves, etc. Application: Vacuum pneumatic angle valves are widely used in the chemical industry, printing and weaving, dyeing, bleaching, food, washing, chemical, water treatment, pharmaceutical and other vacuum system equipment and pipeline opening regulation.