Bi-Directional Gate Valves
Knife gate valves are generally uni-directional valves; however, in some application situations, valves are required to handle pressure or flow from either directions. Bi-directional designs are used in such situations. VAAS offers a range of bi-directional gate valves for such requirements.
Unlike uni-directional knife gate valves, bi-directional valves are always resilient seated. VAAS offers designs which use a U-shaped elastomer seal that provides a peripheral seal along the edge of the gate. There is no raised seat in the flow path and in the open position these valves offer maximum flow area and minimum resistance to flow with lowest pressure drop. VAAS designs also offer face sealing in the higher pressure slurry applications.
For more detailed information on each of our products, use the following links…
755FRL – Slurry Gate Valve Field Replaceable Liners
710 / 711 – Slim, Low Pressure