Fluitek - Parallel Slide Bolted Bonnet - Datasheet

This type of on-off valve is an alternative to the traditional wedge type gate valves. The disc is in two halves, spring loaded, that seat on parallel seat rings. The disc “slides” in contact with the seats, hence the name. The advantages of this product versus the traditional wedge type product are: the disc never blocks in closed position (phenomenon that may occur with a wedge type that is closed with the line in temperature and opened when the line is cold). The opening/closing torque is much lower than a corresponding wedge type valve, resulting in less expensive actuation systems. The “sliding” feature keeps dirt away from the seating surface.