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Just like a wedge gate valve, the main function of the flat gate valve is to control the pipe's switching, not to regulate medium flow in the pipe. The flat gate valve has low fluid resistance, easy to start and stop, short structure length, the free flow direction of pipe medium, and so on.
1. Valve seat of flat gate valve uses 0-type sealing ring with pretension force and floating seat ring structure in order to have inlet and outlet two-way sealed. Besides, its on-off torque applies that of the ordinary valve, which can easily start and stop the valve.
2. Valve seat of flat gate valve uses stainless steel inset or overlaid onto the sealing surface, with the double seal of metal and metal-to-metal, while sealing surface can remove dirt on the gate.
3. Metal sealing valve sets injection structure outside of flat gate valve. The grease gets into the sealing surface through the injection device and valve seat, so that the valve has zero leakage.
4. Valve gate with deflector hole always stays the same with the sealing surface, in order to protect sealing surface from direct corrosion of medium so that life service is prolonged.
5. When the flat gate valve is fully open, with a smooth and flat channel, tiny flow resistance coefficient, and without pressure loss, the pipes can be cleaned by hairballs.
6. WKM gate valve uses a packing structure with self-sealing capacity, doesn't need to adjust frequently, starts and stops easily, and has reliable sealing performance. The stuffing box is equipped with an auxiliary sealing injection structure, with reliable sealing performance and zero leakage, and solves the defect that general valve packing leaks easily.
7. When stopping, high pressure at the end of the flat gate valve can be eliminated automatically for protective use.
8. Flat gate valve has a fully enclosed structure, good protective performance, and can meet all-weather demands.
9. Valve is equipped with indicating arm or observation window to indicate starting and closing of flat gate valve.
1. Flat gate valve shall prevent sediment from entering into running parts.
2. If the medium in pipes includes lots of impurities, the impurity shall be cleared regularly by drain plug or small release valve of flat gate valve. When the valve, without drain valve, discharges waste, please stop transmitting medium. Before discharging, separate slowly the drain plug and discharge residual gas in the valve chamber.
3. Flat gate valve shall be stored in the dry room, not outdoors, to avoid damage or corrosion.
4. When the valve plate is not used frequently (less than 10 times every month), sealing grease shall be filled once every two months, and the flat gate valve shall be started and stopped once at least.
5. Each season, lube shall be added to the valve rod sleeve, window, packing gland, and valve plate nozzle, in order to prevent parts from corrosion.
6. After washing the flat gate valve, spray rust preventing oil on the rotation part. Add paint timely to avoid erosion.
A flat gate valve uses a floating valve seat, with a two-way switch, reliable sealing, and flexible switching. Its valve plate is equipped with a guide bar that orientates accurately, the sealing surface is sprayed, and soldering is firm, gold, and anti-corrosion. The flat gate valve plate has a high bearing capacity and straight channel.
When a flat valve starts, the gate channel is similar to a straight pipe with low flow resistance. Flat valve plate uses composite seal and multiple sealing, with reliable sealing and small friction. When installing a flat valve, make sure that the model and specifications of the flat gate valve are correct.
