The 10 big questions with use common control valve

Time:2023-06-27 10:18:41
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source:MOMEYER CNC Machining

One, why easy oscillation is right when two-seater a powerful person is young spend the job Chan Xin, when medium it is to flow model when, good; of stability of a powerful person is become medium is to flow shut model when, the stability of a powerful person is poor. Two-seater a powerful person has core of two a powerful person, core laying a powerful person is in stream shut, core of a powerful person is in on flow, such, when small spend the job, stream shut model the vibration that core of a powerful person arouses a powerful person easily, this is the reason place that two-seater a powerful person cannot spend the job with Yu Xiaokai. 2, why double sealed a powerful person cannot regard as the good point that shears a powerful person to use core of a powerful person of two-seater a powerful person is equilibrium structure of double sealed a powerful person, allow to press difference big, and its outstanding defect is two sealing surface cannot at the same time good contact, cause leak big. If be its person the ground, mandatory the ground is used at cutting off a circumstance, obvious result is bad, even if made a lot of improvement for it (like) of a powerful person of double sealed sleeve, also cannot take. 3, control valve of what vertical distance prevents a function difference, horny tenor a powerful person prevents a core of a powerful person of function good linear motion valve is perpendicular reduce expenditure, and medium is horizontal inpour is poured out of, the flow path inside antrum of a powerful person turns necessarily abduct, make of a powerful person shed a road to become quite complex (if appearance pours S) . Such, put in a lot of dead band, the precipitation that is medium provided a space, if things go on like this, cause jam. The direction of reduce expenditure of horny tenor a powerful person is horizontal way, medium level inpour, water advection goes out, take away sordid medium easily, shed a route at the same time simple, the space that medium precipitates is very few also, it is good that so horny tenor a powerful person defends a performance. 4, why vertical distance control valve lever of a powerful person is fine it involves a simple mechanical principle: Sliding friction big, rolling friction is small. The lever of a powerful person of linear motion valve moves up and down, filling a bit impaction a bit, it can hire staff of a powerful person very closely, produce a bigger difference. For this, lever of a powerful person is designed very pettily, filling the 4 fluorine filling with commonly used small coefficient of friction, so that reduce a difference, but the problem that expedites from this is lever of a powerful person fine, bend easily, filling life is brief also. Solve this problem, best method uses rod of a powerful person of brigade rotary valve namely, namely horny tenor kind control valve, lever of its a powerful person is thicker than lever of linear motion valve 2 ～ 3 times, and the black lead filling that chooses life to grow, stiffness of lever of a powerful person is good, filling life is long, its attrition moment of force is small instead, answer difference small. 5, why horny tenor kind of a powerful person cut off pressure is difference bigger? Horny tenor kind of a powerful person cut off pressure difference is bigger, because medium is in,be core of a powerful person or a powerful person board go up the moment of force that the join forces of generation produces to axis of rotation is very small, accordingly, it can bear bigger press difference. 6, why to take off briny medium to use line gum is service life of diaphragm valve of fluorine of butterfly a powerful person, line brief? Low pH indicator is contained in desalination water medium acerbity or alkaline, they have to balata bigger caustic. The expression be cankeroused of balata is expand, ageing, intensity is low, with the butterfly a powerful person of line glue, diaphragm valve use effect is differred is balata character actually not anti-corrosive be caused by. Line glue diaphragm valve improves can good for corrosion resistance line fluorine diaphragm valve after, but the diaphragm of line fluorine diaphragm valve go up to issue fold and be folded to defeat via living again, cause mechanical sex to destroy, the life of a powerful person shortens. Best now method is to use water treatment special ball valve, it can use 5 ～ 8 years. 7, why to cut off a powerful person to should be chosen as far as possible hard sealed it is better to cut off a powerful person to ask leak is smaller, the leak of soft sealed a powerful person is lowest, it is good of course to cut off the effect, but not wear-resisting, dependability is poor. From leakage rate small, sealed in light of reliable double standard, soft sealed cut off be inferior to hard sealed had cut off. If complete function exceeds light-duty control valve, sealed and caboodle has wear-resisting alloy to protect, reliability is high, leak rate amounts to 10 ～ 7, can have satisfied the requirement that cuts off a powerful person. 8, why sleeve a powerful person replaces a powerful person of odd, two-seater to did not achieve what one wishes however 20 centuries the sleeve a powerful person that 60 time are published, 70 time are in a large number of domestic and internationally use, the percentage that a powerful person of the sleeve in the petrifaction device that 80 time introduce holds is larger, in those days, many people think, sleeve a powerful person can replace valve of odd, two-seater, make the 2nd acting product. To nowadays, be not such, odd an a powerful person, two-seater a powerful person, sleeve a powerful person gets equal use. Because sleeve a powerful person just improved reduce expenditure,this is form, stability is mixed had safeguarded at sheet a powerful person, but its weight, prevent block up and agree with a powerful person of odd, two-seater on leak index, can it replace valve of odd, two-seater how? So, can use jointly only. 9, why to say type selecting comparing calculates more serious consideration and type selecting to compare, type selecting should weigh good much, complex much. Because computation is a simple formulary calculation only, its itself does not depend on formulary accuracy, and depend on place given craft parameter is accurate. The content that type selecting involves is more, a bit inadvertent, can bring about type selecting undeserved, create the waste of manpower, material resources, financial capacity not only, and use effect is not ideal still, bring a certain number of use issues, wait like dependability, life, riding quality. 10, why to use in actuator of the piston in pneumatic a powerful person the meeting is increasing to pneumatic a powerful person, piston actuator can make full use of gas source pressure, make the dimension of actuator more cabinet than filmy type, thrust is bigger, the O in the piston circle is more reliable than film also, its use meeting is accordingly increasing. CNC Milling