Gate valve is closed, tightly closed surface can be tightly closed only depend on the medium pressure, that depends on the medium pressure, the disc will be tightly closed to the surface pressure on the other side of the seat to ensure tight sealing faces tightly closed, since this is tightly closed. Ram has two tightly closed surface, the two most commonly used standard style gate valve tightly closed surface form a wedge, the wedge Angle vary with the valve depending on a parameter, generally 50, medium temperature is not high for 2 & amp; 度; 52 'Marine valve. This kind of valve in the pipeline should be water there is no danger. Temperature changes to thinking problems revealed lock phenomenon, generally on the lever to open, then pour 1/2 - back 1 ring, as a whole paper the valve position. Wedge gate valve of the damper can be made into a whole body, is called a rigid disc; Can also be made to the wedge disc of the initiation of trace variant to improve its manufacturability, remedial tightly closed surface deviation Angle in the process of initiation, the gate is called elastic disc. 。 Because of this, the valve position of the whole paper, according to the location of the damper ( The itinerary & gt; To confirm. Practical application, based on the valve stem apex as a micro, namely fixed position, as it's the whole piece of paper. Some gate valve, the valve stem nut in ram, hand rotation dynamic help stem rotation, and make the disc, the valve is called rotating lever gate or non-rising stem gate valves. Straight, the direction of flow movement direction of the gate and the gate valve can only make the whole piece of paper and seated, can not adjust and throttling. Flanged gate valve gate valve drawing category, according to the tightly closed surface with layout can be divided into wedge type gate valve and parallel sluice gate valve gate, wedge gate type. Gate is mostly see fit and use force tightly closed, the valve is closed, want to rely on outside force to enforce the ram pressure to the valve seat, in order to ensure tight closed tightly closed below. General on the up and down the pole has ladder type turnbuckle, after the screw nut, and at the top of the Industrial Valves body of guide groove, the rotary motion to linear motion, and operating torque is thrust into operation. Open the valve, when the disc height is equal to valve size of 1:1 times, fluid channel is absolutely smooth, but at runtime, the position is no way to check to see. Gate of the gate with the stem with a straight line, call up and down lever gate ( Also called rising stem gate valves) 。 Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. The factory provides professional ball Industrial Valves, butterfly valve, gate Industrial Valves, globe valve, check valve, relief valve, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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