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Tilting Disc Check Valve Definition And Care 2011-11-18

The disc in a Tilting Disc Check Valve is unguided as it fully opens or closes. There are many disk and seat designs available, in order to meet the requirements of different applications. The valve allows full, unobstructed flow and automatically closes as pressure decreases. These valves are fully closed when flow reaches zero, in order to prevent backflow. Turbulence and pressure drop in the valve are very low. The flapper valve in a flush-toilet mechanism is an example of this type of valve. Tank pressure holding it closed is overcome by manual lift of the flapper. It then remains open until the tank drains and the flapper falls due to gravity. Another variation of this mechanism is the clapper valve, used in applications such firefighting and fire life safety systems. A hinged gate only remains open in the inflowing direction. The clapper valve often also has a spring that keeps the gate shut when there is no forward pressure.

A basic Tilting Disc Check Valve consists of a valve body, a bonnet, and a disk that is connected to a hinge. The disk Tilting Discs away from the valve-seat to allow flow in the forward direction, and returns to valve-seat when upstream flow is stopped, to prevent backflow.

The Tilting Disc Check Valve must be inspected ideally every six months (or as often as the manufacturer may recommend); or when heavy rains are forthcoming; or if you are leaving your home for a long period of time either for a vacation, a work engagement, or for any other reason. Visual inspection must be performed and the valve assemblies must be cleaned.

Remove excessive debris and dirt that may affect the seal quality. Clean the affected parts. If required for proper washing, remove then reinstall. Make sure you wear protective gloves before exposing yourself to the potentially harmful dirt and debris.

Try to see if any component or part is broken. Replace worn out parts of a Tilting Disc Check Valve if necessary. Do not attempt to replace worn out parts if you think you cannot do it on your own or if other adjacent components are affected. Call a professional if you think you will need help.

If you see that the flapper of the valve is dirty, take the flapper off and rinse with clean water. If you have to, scrub it to remove the dirt. Put the valve control component back to its original place. Test it to make sure that it will be forced open with outflow from the drain. Run water through it for proper testing. When pushed towards the direction of the drain, the flapper must properly close. If this procedure is not possible probably because of time constraints, a quicker alternative would be to flush each of the Tilting Disc Check Valve with clean water. Flushing the nearest toilet bowl that uses the drain several times; or letting the

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