Balanbaalista valve waa nooc ka mid ah waalka isticmaala nooca saxanka ee furitaanka iyo xidhitaanka qaybo si uu gadaal iyo gadaal ugu jeediyo ilaa 90° si loo furo, u xidho ama u hagaajiyo socodka dhexdhexaadka ah.Balanbaalista valve ma aha oo kaliya qaab dhismeed fudud, cabbir yar, miisaan fudud, isticmaalka walxaha hoose, cabbirka rakibaadda yar yar, qulqulka wadista yar yar, hawl fudud oo degdeg ah, laakiin sidoo kale wuxuu leeyahay shaqo nidaaminta qulqulka wanaagsan iyo sifooyinka xiritaanka iyo xiritaanka isku mar.Baallooyinka balasalka ayaa si weyn loo isticmaalaa.
Iyada oo la adeegsanayo caagga synthetic ee kiimikaad u adkaysta ee valves balanbaalis, wax qabadka balabaalista valves waa la hagaajiyay.Maadaama caag synthetic uu leeyahay sifooyinka caabbinta daxalka, caabbinta nabaad-guurka, cabbirka xasilloon, adkeysiga wanaagsan, samaynta fudud, iyo kharash yar, caag synthetic oo leh sifooyin kala duwan ayaa loo dooran karaa iyadoo loo eegayo shuruudaha codsiga kala duwan si loo buuxiyo shuruudaha shaqada ee balastarrada.
Sababtoo ah polytetrafluoroethylene (PTFE) waxay leedahay iska caabin adag oo daxalka ah, waxqabadka xasilloon, ma fududa da'da, isku-dhafka hoose ee isku-dhafka, sahlanaanta qaabeynta, cabbirka xasilloon, iyo waxqabadkeeda dhamaystiran ayaa lagu wanaajin karaa iyada oo la buuxinayo laguna daro alaabta ku habboon si loo helo xoog iyo xoqid wanaagsan.Alaabta lagu xidho waalka balanbaalista oo leh isugeyn hoose ayaa ka gudubta xaddidaadda caagga synthetic.Sidaa darteed, qalabka polymer-ka molecular ee sarreeya ee ay matalaan polytetrafluoroethylene iyo buuxintooda alaabada wax laga beddelay ayaa si weyn loogu isticmaalay balaaliyeyaasha balabaalista, si wax qabadyada balaaliyeyaasha balastarrada loo wanaajiyo.Waa la sii wanaajiyay, iyo balaaliyeyaasha balastar leh oo leh heerkul ballaadhan iyo cadaadis cadaadis, waxqabadka daboolka la isku halayn karo iyo nolosha adeegga dheer ayaa la soo saaray.
Si loo daboolo shuruudaha codsiyada warshadaha sida heerkulka sare iyo hooseeya, nabaad-guurka xooggan, iyo nolosha dheer, balaaliyeyaasha birta ah ee xiran ayaa si weyn loo sameeyay.Iyada oo la adeegsanayo iska caabbinta heerkulka sare, iska caabinta heerkulka hooseeya, iska caabinta daxalka xoog leh, caabbinta nabaad-guurka oo xooggan, iyo agabka aluminiumka xoogga badan ee ku jira baallayaasha balanbaalleyda, balaaliyeyaasha birta ah ee xiran ayaa si weyn loogu adeegsaday beeraha warshadaha sida heerkulka sare iyo hooseeya, xooggan nabaad guur, iyo cimri dheer.Waxaa soo muuqday baallayaasha balasalka oo leh dhexroor weyn (9 ~ 750 mm), cadaadis sare (42.0 MPa), iyo heerkul ballaaran (-196 - 606 ° C) ayaa soo muuqday.
Marka balastaroolka si buuxda loo furo, waxay leedahay iska caabin yar oo socodka.Marka furitaanku u dhexeeyo qiyaastii 15 ° ~ 70 °, waxay sidoo kale samayn kartaa xakamaynta qulqulka xasaasiga ah, sidaas darteed goobta qawaaniinta waaweyn ee dhexdhexaadinta, codsiga baallooyinka balastarrada waa mid aad u badan.
Maaddaama dhaqdhaqaaqa saxanka balanbaalista uu tirtirayo, baallooyinka balanbaalista intooda badan waxaa loo isticmaali karaa warbaahinta leh qaybo adag oo xayiran.Iyadoo ku xiran xoogga shaabadda, waxaa sidoo kale loo isticmaali karaa warbaahinta budada iyo granular.
Valfyada balanbaalista waxay ku habboon yihiin nidaaminta socodka.Tan iyo khasaaraha cadaadiska ee waalka balanbaalista ee tuubada waa mid aad u weyn, oo ku saabsan saddex jeer ka mid ah waalka iridda, marka la dooranayo balanbaalis, saamaynta luminta cadaadiska on nidaamka dhuumaha waa in si buuxda loo tixgeliyo, iyo xoogga saxanka balanbaalista si ay ugu adkeysato cadaadiska dhexdhexaadinta dhuumaha marka la xiro waa in sidoo kale la tixgeliyaa..Intaa waxaa dheer, xaddidaadda heerkulka hawlgalka ee alaabta kursiga laastikada ee heerkulka sare waa in sidoo kale la tixgeliyaa.
Dhererka qaab-dhismeedka iyo dhererka guud ee waalka balanbaalista waa yar yahay, furitaanka iyo xidhitaanka xawaaraha waa mid degdeg ah, wuxuuna leeyahay sifooyin xakameyn dareere oo wanaagsan.Mabda'a qaab-dhismeedka ee balaaliyaha balastar-ka ayaa ah mid aad ugu habboon samaynta valves-ballaaran.Marka waalka balanbaalista loo baahan yahay in loo isticmaalo xakamaynta qulqulka, waxa ugu muhiimsan waa in si sax ah loo doorto qeexida iyo nooca balabaaliga valve si uu si habboon oo waxtar leh u shaqeeyo.
Guud ahaan, baallooyinka balanbaalista ayaa lagula talinayaa inay xoqdo, xakamaynta xakamaynta iyo warbaahinta dhoobada halkaas oo dhererka qaabdhismeedka gaaban, xawaaraha furitaanka iyo xidhitaanka degdega ah, iyo jarista cadaadiska hooseeya (farqiga cadaadiska yar) ayaa loo baahan yahay.Valfyada balanbaalista ayaa loo dooran karaa hagaajinta booska labanlaaban, kanaalada-dhexroorka-dhimista, qaylada hoose, cavitation iyo uumiga, qadar yar oo qulqulaya jawiga, iyo warbaahinta abrasive.Hagaajinta ceejinta ee xaaladaha shaqada gaarka ah, ama xaaladaha shaqada ee u baahan xidhid adag, daal daran, heerkul hoose (cryogenic) iyo wixii la mid ah.
Valve Balanbaalis Flanged | |||||||
Tilmaamaha Magaca | Cadaadis | Cabirka (mm) | |||||
mm | inji | PN | H | D | F | d | B |
50 | 2 | 10 | 157 | 52 | 60.3 | 65 | 81 |
16 | 157 | 52 | 60.3 | 65 | 81 | ||
25 | 157 | 52 | 60.3 | 65 | 81 | ||
65 | 2.5 | 10 | 182 | 63 | 73 | 65 | 96.8 |
16 | 182 | 66 | 76.1 | 65 | 96.8 | ||
25 | 182 | 66 | 76.1 | 65 | 96.8 | ||
80 | 3 | 10 | 196 | 78.8 | 88.9 | 65 | 96.8 |
16 | 196 | 78.8 | 88.9 | 65 | 96.8 | ||
25 | 196 | 78.8 | 88.9 | 65 | 96.8 | ||
100 | 4 | 10 | 226 | 96.3 | 108 | 65 | 115.8 |
16 | 226 | 96.3 | 108 | 65 | 115.8 | ||
25 | 233 | 102.8 | 114.3 | 65 | 115.8 | ||
125 | 5 | 10 | 273 | 120.6 | 133 | 90 | 147.6 |
16 | 279 | 127.1 | 139.7 | 90 | 147.6 | ||
25 | 279 | 127.1 | 141.3 | 90 | 147.6 | ||
150 | 6 | 10 | 298 | 145.1 | 159 | 90 | 147.6 |
16 | 303 | 151.6 | 165.1 | 90 | 147.6 | ||
25 | 303 | 151.6 | 168.3 | 90 | 147.6 | ||
200 | 8 | 10 | 369 | 230.4 | 219.1 | 90 | 133.4 |
16 | 369 | 230.4 | 219.1 | 90 | 133.4 | ||
25 | 369 | 230.4 | 219.1 | 90 | 133.4 |