FREE-Valve’s Triple Offset Butterfly Valve adopt triple offset principle to design, makes the movement track on facing space reach to idealization, and there are no attrition and no intervene between sealing pair , furthermore, the sealing material
FREE-Valve’s Fully Welded Ball Valve are widely used in almost all the industry .Compared to the general casting ball valve,fully welded ball valve have a highly performance and longer life time . It was widely used in city gas ,city heat supply ,o
FREE-Valve’s High Performance Butterfly Valves are double offset structure and can be used for shut-off and throttling control.
It is divided into hard to hard sealing or hard to soft sealing with two structures according to sealing surface mater
FREE-Valve’s Centric Butterfly Valve adopt center Lined principle to design, It uses the flexibility rubber seat, could easily achieve zero leakage and bi-directional sealing, It also can be used as regulation and shut-off device to deal with corro