Butterfly valves are essential in applications that require a tight shut-off. The disc opens and closes with a 90-degree low-torque rotation. The stem centre deviates from the centre of the disc in the double-offset structure, while the triple offset design eliminates rubbing to extend cycle life. PTFE-lined options withstand corrosive chemicals. VDM Control Solutions is a proud GEFA supplier in South Africa.
Two-piece ball valves are made of two separate pieces joined together by a threaded or bolt-and-flange assembly. On the other hand, a three-piece ball valve comprises two end caps and a body. The end caps are welded, threaded, or flanged to connect to the pipe on either side. PTFE-lined ball valves can withstand even the most corrosive chemicals. VDM Control Solutions is a proud GEFA supplier in South Africa.
Knife gate valves are primarily intended for on-off and isolation services in systems with a high suspended solids content. They are beneficial for handling slurry and viscous, corrosive, and abrasive media. The valves have a low-pressure drop in the fully open position, are simple to operate, light in weight, and cost-effective. VDM Control Solutions is a proud GEFA supplier in South Africa.