Pilot valve along with the change of liquid level and pressure of the medium movement, because the pilot valve category is numerous, can be used alone or combined several applied, can make the main valve in the water and the water pressure and flow rate of single and compound such as regulating function. Have said above, the special nature of the valve near the valve disc movement speed, not prone to boil the water hammer shock, close to full close when the valve less quickly, the better, so the throttle device can be installed on the disc. Pilot valve can be changed after a downstream pressure and up or down its own small valve port, thus changes the diaphragm ( The piston) Upper stem pressure chamber, restrict the adjustment of the main valve disc position. Can be used for living and industrial water supply, fire fighting system to the water system. It consists of a main valve and attached setting catheter, needle valve, ball valve and pressure gauge, etc, on the basis of using the target, function of place, can reduce pressure becomes remote sensing floating ball valve, valve, slow close check valve, flow stem, relief valve, water power electric stem valves, tight shutoff valves, etc. When entering the diaphragm ( The piston) Upper stem indoor pressure downstream of the water is discharged into atmosphere, or low pressure area, low utility in the disc and below the diaphragm of the pressure value is greater than at the top of the pressure value, thus pushing the main valve disc to rev. The location of the full paper: when entering the diaphragm ( The piston) Upper stem indoor pressure value in the inlet pressure and export since the middle, the main valve disc is to adjust status, adjust the position is determined by the needle valve in the duct system and Marine valve pilot valve to the conjugate. Indispensable to add filter net, regular check repair and set the by-pass pipe. Construction principle of hydrodynamic stem valve based on pressure pipeline media power, execute, regulating valve opening and closing. Roughly similar to the main valve body by the valve, the valve when the whole paper, the pressure loss is much larger than the other valves, and all the more opening loss coefficient and near full close condition, the surge in the front of the valve diameter is larger, the more significant. Additional pilot valve throttle and local to try our best to prevent Settings, small-bore orifice, avoid congestion. Intermediate partition membrane type and hydrodynamic stem valve piston type two kinds, office principle is the same, is more than the downstream pressure difference, pilot Industrial Valves stem, make diaphragm ( The piston) Hydraulic differential operation, the absolute by hydrodynamic semi-automatic adjustment, so that the main valve disc and complete paper or absolute closed or in the condition adjustment. 。 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 valve, butterfly Industrial Valves, 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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