Iparungtal tayo no antoy pandumaan na globe valve tangate valve.
01
Istruktura
No limitado so espasyo parad pangipaalagey, imanoen so pilien:
Saygate valvenayarin manmatalek ed medium pressure pian malet ya nasara so sealing surface, pian nadampot so epekto na anggapoy leakage. No manlulukas tan mansara, say valve core tan say sealing surface na valve seat et lanang ya mankakasakey tan mankukuskos ed balang sakey, kanian say sealing surface et mainomay ya isulong, tan no saygate valveasingger lan mansara, say pandumaan na presyon ed baetan na arap tan beneg na tubo et baleg a tuloy, kanian lalon onloor so sealing surface.
Say istruktura nagate valveet mas komplikado nen say globe valve, manlapud punto de bista na itsura, diad kaso na parehon kalibre, say gate valve et mas atagey nen say globe valve, tan say globe valve et mas andukey nen saygate valve. Niarum ni, saygate valveet naapag ed maliwliwawan baras tan maimpis a baras. Saray shut-off valve et ag-ontan.
Panon itan ya mankimey
No lukasan tan isara so globe valve, sakey itan ya ontatagey a stem, salanti, no say handwheel et ipawil, say handwheel et onliber tan ontagey a kaiba so stem. Saygate valveet say pangipawil ed handwheel pian say valve stem et makagalaw, tan say posisyon na handwheel a mismo et ag manguman.
Nanduruma so peles na agos, yasaray balbula na gatemankaukolan na sigpot a panlukas odino sigpot a pansara, bangta saray globe valve so agmankaukolan. Say globe valve et walay nibaga ya direksion na iloob tan paway, tan saygate valveanggapoy kakaukolanen ed direksion na iloob tan paway.
Niarum ni, saygate valvewalaan labat na duaran estado: sigpot ya lukas odino sigpot ya akasara, tan say stroke na panlukas tan pansara na gate plate et baleg a tuloy, tan say panaon na panlukas tan pansara et andukey. Say movement stroke na valve plate na globe valve et mas melag, tan say valve plate na globe valve et nayarin ontunda ed sakey a pasen ya onkikiwas pian na-adjust so agos. Saygate valvenayarin usaren labat parad panagputot tan anggapoy arum ya gagala to.
Saray pandumaan na performance
Say globe valve et nayarin usaren parad cut-off tan flow regulation. Say fluid resistance na globe valve et medyo baleg, tan mas mairap ya lukasan tan isara, balet lapud antikey so distansya na valve plate tan say sealing surface, antikey so opening tan closing stroke.
Lapud saygate valvenayarin sigpot labat ya nalukasan tan nasara, no sigpot lan nalukasan, say medium flow resistance ed valve body channel et ngalngalin 0, kanian say panlukas tan pansara nagate valvemakatipid na trabaho, balet say plato na puerta et arawi ed tapew na seal, tan andukey so panaon na panlukas tan pansara.
04
Say pangipuesto tan say direksion na agos
Say epekto nagate valvepareho so direksion na agos ed duaran direksion, anggapoy kaukolan ya direksion na inlet tan outlet na pangipuesto, tan say medium et nayarin onagus ed duaran direksion. Say globe valve et kaukolan ya i-install ya unong ed direksion ya akamarka na arrow na valve body, tan walay malinew ya probisyon ed direksion na inlet tan outlet na globe valve, tan say direksion na agos na globe valve et manlapud tagey ya anggad leksab unong ed “taloran pananguman” na balbula na China.
Say shut-off valve et abeba tan atagey, tan manlapud paway et walay malinew ya tubo ya aliwan diad lebel na sakey a phase. Saygate valvesay dalan na agos et walad pabitay a linya. Say stroke nagate valveet mas baleg nen say globe valve.
Diad panmoria na flow resistance, no sigpot ya lukas, say flow resistance na gate valve et melag, tan say flow resistance na load stop valve et baleg. Say flow resistance coefficient na ordinaryogate valveet manga 0.08~0.12, say puersa na panlukas tan pansara et melag, tan say medium et nayarin onagus ed duaran direksion. Say flow resistance na ordinaryon globe valves et 3-5 beses nen saybalbula na gate.Say panlukas tan pansara et kaukolan ya piliten ya isara pian naabot so sealing, say spool na globe valve et sigpot ya akasara no onsabi itan ed sealing surface, kanian say pakaupot na sealing surface et melag labat, lapud baleg ya agos na manunan puersa pian makaarum na actuator na globe valve et nepeg ya imanoen so torque control mechanism adjust mechanism.
Walay duaran paraan pian niiyan so globe valve, sakey et say medium et nayarin onloob manlapud silong na spool, say bentaha to et say packing et ag na-pressure no sarado so valve, ya nayarin mamalaknab na serbisyo na packing, tan nayarin salatan so packing no say pipeline ed arap na valve et walad silong na pressure; Say disbentaha to et baleg so driving torque na balbula, ya manga 1 beses nen say upper flow, baleg so axial force na valve stem, tan mainomay ya na-bend so valve stem.
Kanian, sayan paraan et kaslakan ya matukoy labat parad saray globe valve ya melag so diametro da (DN50 o mas abeba), tan saray globe valve ya walad tagey na DN200 et manguusar na medium ya onaagus manlapud tagey. (Say electric globe valves et kaslakan ya manguusar na medium pian makaloob manlapud tagey.) Say disbentaha na media entry method manlapud tagey et eksakton kabaliktaran na lower entry method.
05
Panselyado
Say sealing surface na globe valve et melag ya trapezoidal ya gilig na valve core (nengnengen so kurti na valve core), no napelag so valve core, mipara itan ed pansara na balbula (no baleg so pandumaan na presyon, siempre, aliwan estrikto so pansara, balet aliwan mauges so check effect), saygate valveet akasara ed gilig na valve core gate plate, say epekto na seal et aliwan singa say globe valve, tan say valve core et ag-onkapuy a singa say globe valve ya mipara ed valve closing.
Oras na post: Apr-08-2023
