The parallel slide gate valve is designed to avoid any flow turbulence and minimize the pressure drop. It is an
alternative option of double disc valves having single wedge instead of double wedge. The parallel slide gate valve
closes with a sliding action instead of the usual compression, so there is no tendency, notch or indent on the
sealing surfaces. This result of this action can bring a better tightness to the disc on the seat-ring, and a longer
lifetime of the discs and seat sealing surfaces.