Tilting Disc Check Valves typically consist of a valve body, a valve disc, and a valve stem. The valve body is the main part of the valve, with an inlet port and an outlet port. The fluid enters the valve body through the inlet port, passes through the control of the valve disc, and exits through the outlet port. The valve disc is a disk with a tilted design, which can easily open or close in response to the fluid flow direction. The valve stem is the device used to control the opening and closing of the valve disc, typically operated manually or automatically.
working principle of tilting disc check valves
The working principle of tilting disc check valves relies on the free sliding of the valve disc under the action of fluid pressure. When the fluid flow direction aligns with the inclined plane design of the valve disc, the valve disc is pushed by the fluid pressure, opening the valve and allowing the fluid to pass freely through the valve body. However, when the fluid flow direction opposes the inclined plane design of the valve disc, the valve disc is hindered by the fluid pressure, causing the valve to close and preventing backflow.
advantages
Tilting disc check valves offer the following advantages:
Wide applicability: Can be used for liquids, gases, and suspended solid particles in fluids.
Low pressure loss: When the valve disc aligns with the fluid flow direction, the valve is fully open, allowing fluid to pass with minimal obstruction, resulting in lower pressure loss.
High reliability: The tilted design of the valve disc reduces fluid impact and vibration, minimizing the likelihood of failure.
Simple operation: Can be controlled manually or automatically for opening and closing.
limitations
However, tilting disc check valves also have some limitations, such as:
Requires a certain fluid pressure: The operation of the valve disc depends on fluid pressure, so a certain level of fluid pressure is necessary to ensure normal valve operation.
Not suitable for high-speed fluids: Due to the design characteristics of the valve disc, when the fluid velocity is too high, the valve disc is prone to impact and vibration, which may affect the normal operation of the valve.
Specification
Design Standard: BS 1868
Size Range: 2"-48" (DN50-DN1200)
Pressure Rating: ASME CLASS 150-2500 (PN16-PN420)
Body Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel
End Connection: RF, BW, RTJ
Operation: None
Fire Safe Design: Yes
