Semi-automatic valve core is used to keep the traffic forever fixed, namely in the pipe network pressure changes, semi-automatic valve core will be under the effect of pressure on small semi-automatic on high heat off valve mouth to keep setting flow number has not changed. Stem flow valve products unique place: flow stem is called 400 x flow stem valves, is a kind of right and use high precision guide form multifunctional valve stem flow. No installation for water. Show local by flow valve movement, sensors, transmission device, electronic calculator show local component. Traffic: stem valve selection can be based on pipe diameter selection, etc. Flow valve stem is under a certain pressure difference, depends on changes to the throttle to the volume of fluid resistance to curb the throttle opening traffic, thus adjust the actuators ( The hydraulic cylinder or hydraulic motor) movement speed. We can choose according to the maximum flow and valve flow range. Its office is and its complex. Office principle of stem flow valve: digital flow valve stem its structure consists of semi-automatic valve core, manual valve core and show local component. For manual control valve group, traffic G = Kv ( P2- P3) , the volume of Kv depends on in the opening, the opening unchanged, the flow G unchanged, and P2 - P3's eternal group is fixed by the semiautomatic balancing Industrial Valves stem. Q: flow valve stem office principle and product introduce a: traffic stem valve in structure, is a double valve combination, namely by a manual control valve group and semi-automatic balance valve, the utility of the manual valve group is set flow, semi-automatic balanced valve group utility is to keep the flow fixed eternal. Suitable for use in water distribution to stem in pipeline flow and pressure, to maintain the prescribed flow unchanged, will limit excessive flow in a specified value in advance, and appropriate to the upstream pressure is reduced, even if the main valve upstream of the pressure change, also won't affect the main valve downstream of the flow. Manual control valve group every opening corresponding to a flow, the relationship between the opening and flow by trying to attempt to determine, with the opening of the show and locking device. 。 Such as the differential pressure P1 - imports P3, after the effectiveness of pressure sensitive film and spring make semi-automatic balanced valve set down, make P1 - P2 increase, so keep P2 - P3 fixed eternal; In contrast, P1 - P3 is reduced, since the Marine valve dynamic balance valve is set up, make P1 - P2 is reduced, so keep P2 - P3 of fixed eternal. Both in the pipe network pressure changes, semi-automatic valve core will be under the pressure of the utility semi-automatic set up or down valve mouth to keep traffic number has not changed. Mainly covers the throttle valve, control valve, relief valve and bypass collector valve, etc. Manual valve core is used to regulate traffic, on the basis of values to set the desired flow value. Impact by water flow through the valve, water flow movement within the impeller, the impeller rotating and sensing transmission induction, the sensor sends out the electrical signal is proportional to the flow, traffic signals through a wire into electronic calculator, through the calculation of the calculator, micro disposer after disposal, the flow value. 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 valve, gate valve, globe valve, check valve, relief valve, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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