1.Material: cast iron, stainless steel 2.Medium: solid particle, powder 3.Working ... under 300 degrees Celsius.6. The material can be cast iron, stainless steel.7. Rotors can be made especially according ... Widely used in chemical, cement, pharmacy, drying, environmental protection, electric power and foodstuff etc.12. This kind of rotary valve ... air lock valve. TGFY(I) Rotary Valve (cast iron)