Sluice Valves
Sluice Valves | Sluice Valves from Sarbadaa
A gate valve or a Sluice gate valve is described as a valve that uses a gate or wedge shape disk that slides perpendicular to the flow of the fluid into or out of the pipeline. When the gate valve is fully opened, the disk of the gate valve is completely separated from the flow. This practically gives no opposition to flow. Due to this, very little reduction in pressure is experienced as the fluid moves through the gate valve. The sluice gate valve is the common type of valve that is used in process plants to handle slurries. In operation, these valves are either fully opened or fully closed. Sluice gate valves cannot be used for throttling as accuracy cannot be achieved using them. The high flow velocity in the partially open valve can cause disk and seat surface erosion and can also cause vibration and noise.
How Does a Sluice Valve Work?
- The sluice gate valve is controlled by a lifting gate or wedge, so that flow of water can move without obstruction. The top end of the stem has a hand-operated wheel or a motor that raises and lowers the doors, and the lower end has a circular or wedge gate to obstruct water flow. It employs a threaded stem, so the valve must turn several times to shift from the open position to the closed position, and vice versa to stop water hammering.
- There are mainly two main types of the spindle that are used to raise the gate in a sluice valve.
- Raising Spindle type valve: In this type of valve, the spindle/stem is connected to the gate. While operating the spindle valve does not rotate with the handwheel but raised with the spindle.
- Non- Raising spindle type valve: In this type of valve design the spindle is threaded and the gate is also threaded internally where it is attached to the spindle. While operating the valve stem does not raise from its place but rotates in its place to raise the gate using threads.
- The dimension of the sluice valve is usually the same as the size of the main valve that is up to a diameter of 300 mm. For larger diameters, the size of the valve is roughly two-thirds the size of the main valves.
- The valves are mounted in a valve chamber fitted with caps or handwheels for operation. The method of opening the valve can be clockwise or counter-clockwise, indicated at the outer end of the spindle.
Get a Free Quote on Sluice Valves
Fill Out the Form Now!
Looking for reliable and cost-effective Sluice Valves for your next project? Fill out the form below to receive a customized quote and expert advice tailored to your specific requirements. Let us help you choose the right Sluice Valves Solutions
