■ Gate Valves; The movement of the flap, called the slider, in the vertical plane thanks to the worm screw shaft It is the valve that gives way to the fluid and stops the flow. It is preferred to use gate valves that operate as fully open or fully closed.

■ They are maintenance-free double-acting valves. Flow is full cross section. There is no narrowing of the diameter, the slider sits on the flat surface. Each time the valve is opened, the flow in the line cleans the sealing surface and prevents dirt and deposits from accumulating. Gear box and actuator can be mounted. It can be used in underground and aboveground applications. It can be controlled by extension. The pressure loss is very low. It works with low torque, does not require maintenance.