The types of Gate Valve include valves with Through Conduit Slab, Through Conduit Expanding, Solid Wedge and Flexible wedge gates. Choosing an appropriate Gate Valve is dependent on the duty and the sealing characteristics demanded by the service; Through Conduit slab gate valve depend on the flowline pressure to effect a seal; whereas Expanding and Wedge Gate Valves are positive shut off valves that force the Gate onto the seats to effect a seal through increasing the torque and the thrust. In particular, the Flexiwedge is used for simple shut off duties where high temperatures are involved and to prevent the gate from jamming.

Through Conduit GATE VALVES designed to API 6D and 6FA are custom manufactured by Vatac and supplied with Flanged, Butt Weld, Socket Weld, Hub Connectors, Compact Flange or other proprietary connections. Pressure ratings up to ANSI #2500Lb, temperature ranges from -46 to +175 Deg C and bore sizes from 2