Instrument needle valve in terms of energy savings

Design and manufacture of valves, to minimize the valve on the flow resistance of the medium. Opening and closing force and closing torque is the valve open or closed by force or torque to be applied. Close the valve, the need to open and close between the two pieces with the fat seat sealing surface seal formed between certain specific pressure, but also to overcome between the stem and the packing nut thread between the stem and the stem end bearing at and other friction parts of the friction, Instrument needle valve and therefore must apply the closing force and closing moments, the valve in the opening and closing process, the need to stop the force and the opening and closing moments of change, and its maximum is close to the final instant or open the initial transient. Instrument needle valve design and manufacture of valves should strive to reduce the closing force and closing moments. Hoisting speed is used to open or close the valve to complete a time of action required to represent. Valves open and close speed generally no strict requirements, but some conditions have special requirements for opening and closing speed,5 way manifolds if the prompt to open or close, to prevent accidents, and some require slow shut down to prevent water hammer, etc., this should be considered in the selection of valve type. This refers to the valve for the medium parameters change, and make the appropriate degree of sensitivity. For the throttle valve, regulating valve is used to adjust the valves and valve medium parameters, such as valves trap with a specific function, its functional sensitivity and reliability are very important technical performance indicators. Life represents the durability of the valve, the valve is an important performance indicators, and has great economic significance. Usually able to guarantee the number of seals required to open and close said, can also be used to indicate the use of time. Instrument measuring instrument needle valve is an important part of the piping system, the main shut-off valve and ball valve, its function is turned on or off for pipeline access use.