Shanghai Yihuan flow control equipment Co., Ltd. Devotes to set up famous brand. Through several years of hard working, Shanghai Yihuan has accumulated abundant control valve design, manufacture and practice experience and form our own control valve series. With the strong support of graduate school of the Chinese academy of sciences, we have a high-quality special designing and producing team, CAD design room, performance test equipments of accurate digital control machine tool and control valve(regulating valve) and high-effective management theory. All kinds of our valves can meet the every condition and demands. The good technology support and complete after sales service system win us good reputation. Choose Shanghai Yihuan means you choose the safety, high-efficiency and high-accuracy. Every kind of our valves have been extensively applied in the fields of petroleum, metallurgy, light industry, food, environment protection, electric power, heating supply, water supply and win good reputation in the international market.