Welcome to Liangyi Valve! Liangyi Valve is a major production base of TIP valve. Both Liangyi Valve and TIP valve are operated by the same board of directors. As a professional valve manufacturer and supplier, Liangyi Valve can offer a wide range of flow control products for the oil, gas and related industries. With more than 20 years of experience and ceaseless creation in the field, we have integrated Design, Quality control, Technical development and Sales service.