HAA／KHAA air operated / electrically operated single-seat horn-shaped control valve HAA／KHAA air operated / electrically operated single-seat horn-shaped control valve is up direction structure. Compact construction, much less lose of pressure fall, high precision of flow property, much less leakiness. It’s mostly used in the situation of less leakiness and pressure fall.

HAC／KHAC air operated / electrically operated cage-shaped horn control valve HAC／KHAC air operated / electrically operated cage-shaped horn control valve is a kind of pressure balance control valve which can control high temperature and lower’s high pressure fluid. It’s inner body of valve has a guide wing to make the fluid around the sleeve flowing balance, so that to reduce it’s lose of pressure fall and extend it’s control range, and good at movement stability. It’s mostly used in the situation of high pressure fall.

HAV／KHAV air operated / electrically operated venturi horn-shaped control valve HAV／KHAV air operated / electrically operated venturi horn-shaped control valve is up direction construction, compact construction, much less lose of pressure fall, huge flow, wide control range. It’s mostly used in the situation of control the medium that contained kernel and mud, stick medium and flash evaporation medium.