I-Zhongfa Valve ingumkhiqizi ochwepheshile wezingxenye zamavalvu ovemvane namavalvu ovemvane, eyasungulwa ngo-2006, ihlinzeka ngamavalvu nemikhiqizo yezingxenye zama-valve uvemvane emazweni angaphezu kwama-20 emhlabeni, ngokulandelayo, i-Zhongfa Valve izokwethula ukwethulwa okuningiliziwe kwezingxenye zamavalvu ovemvane.
I-valve uvemvane iqukethe izingxenye ezilandelayo, igama lezingxenye zovemvane umzimba we-valve, i-valve Disc, i-valve shaft, isihlalo se-valve, indawo yokuvala uphawu, kanye ne-actuator yokusebenza, manje, sizokwethula lezi zingxenye ze-valve butterfly ngayinye.
# 1 Izingxenye zamavalvu ovemvane--Umzimba wevalvu
Sixoxa ngomzimba we-valve mayelana nokuxhuma nezinto ezibonakalayo
1. Ngokuvamile, ngokwezindlela ezihlukene zokuxhuma, ama-valve ovemvane anohlobo lwe-flange, uhlobo lwe-wafer, kanye nohlobo lwe-lug, futhi izitayela ezilinganiselwe ziboniswa esithombeni.Ohlotsheni ngalunye lokuxhuma, kunomehluko ocashile ngokuya ngokubumba okuhlukene, okufana nevalve uvemvane oyilutshwana, i-Zhongfa Valve inalezi zinhlobo ezilandelayo zokubunjwa.
2. Ngokusho kokuqukethwe, ezivamile umzimba we-ductile iron, umzimba we-carbon steel, umzimba wensimbi engagqwali, umzimba wethusi, nomzimba wensimbi we-super duplex.
#2Izingxenye zevalve uvemvane--I-Valve Disc
Isitayela se-valve disc sibuye sihluke, i-pin disc, i-pinless disc, i-disc enerabha, i-Disc eneNylon, i-Electroplated Disc, njalonjalo, Ngokuvamile, i-disc valve ikhethwa ngokuvumelana nezimo zokusebenza kanye nendawo.
Kudiski elingenaphini, Kukhona i-shaft edlulayo kanye ne-double half shaft, i-disc engenaphini izonciphisa amathuba okuvuza, kwi-Disc enephini, kungenzeka ukuthi iphini ligugile noma ligle ngemuva kwesikhathi eside, imidiya ephuma kuphini ku-disc leyo mbobo ye-shaft evuzayo.Singathanda ukukhetha i-pinless disc yeklayenti lethu.
# 3 Izingxenye zamavalvu ovemvane--I-Valve Spindle
I-spindle butterfly valve ebizwa nangokuthi i-stem, isetshenziselwa ukudlulisa, ixhunywe ku-actuator noma isibambo, okulandelayo kushayela ngokuqondile ukujikeleza kwepuleti ye-valve, ukuze kuzuzwe ukushintshwa kwe-butterfly valve noma indima yokulungisa.
1. Kusukela kumpahla: Impahla yokuphotha ngokuvamile yenziwe ngensimbi engagqwali ne-carbon steel, futhi ikhodi yayo ithi: insimbi engagqwali (2cr13, 304, 316, 316L), carbon steel (35, 45, Q235).
2. Kusukela kusitayela: iveluve uvemvane ngokusebenzisa shaft (kwesokunxele) kanye butterfly valve double shaft uhhafu (kwesokudla).
a: Ngokwentengo: i-double half-shaft ibiza kakhulu kune- through-shaft.
b: Mayelana nokusetshenziswa: i-double half-shaft ingenza okungaphezu kwe-DN300, kanti i- through-shaft ingenza i-DN800.
c: Ukuguquguquka kokufakwayo: okufakwayo kushaft kungasetshenziswa kumavalvu ovemvane aphiniwe anenani eliphansi le-scrap.Kungasetshenziswa ama-valve evemvane e-semi-shaft ephindwe kabili kuphela, futhi izinga le-scrap liphezulu.
d: I-Assembly: ngokusebenzisa-shaft ngaphandle kwephinikhodi kuyindlela eyisisekelo ekwakhiweni, ukuklama okulula, ukucutshungulwa kwe-shaft, ubunzima bokukhiqiza obuphindwe kabili kwe-shaft, ngokuvamile ihlukaniswe ibe yi-shaft ephezulu, kanye ne-shaft ephansi.
# 4 Izingxenye zamavalvu ovemvane--Isihlalo seValve
Isihlalo senjoloba se-valve uvemvane sophawu oluthambile singahlukaniswa sibe yisihlalo senjoloba esingemuva esiqinile kanye nesihlalo senjoloba esingemuva, kanti isihlalo se-hard seal butterfly valve ikakhulukazi uphawu lokufaneleka kanye nophawu olunamazinga amaningi.
Umehluko phakathi kwesihlalo senjoloba esinesisekelo esiqinile kanye nesihlalo senjoloba esine-soft-backed valve butterfly: isihlalo esiqinile sicindezelwe emzimbeni we-valve ngama-abrasives, angenakushintshwa ngokwawo futhi adinga i-flange ekhethekile ye-valve butterfly. ;isihlalo esine-soft-backed senziwa imodeli, engashintshwa yona ngokwayo futhi ingasetshenziswa nge-flange engeyona ekhethekile ye-butterfly valve.
Mayelana nempilo yesevisi yesihlalo senjoloba, impilo yesevisi yesihlalo sangemuva esithambile yinde kunaleyo yesihlalo sangemuva esiqinile, okuyisakhiwo esikhulu se-broadside.Inqubo ye-valve yesikhathi eside yokusebenza kwe-valve yesihlalo sokugqokwa kokuphela kweshaft.Ukuvuza kokuphela kwe-valve seat shaft ngemva kokugeleza kwamanzi kwesihlalo esingemuva esiqinile kuya ngaphandle kwendawo yokuvuza komzimba we-valve.Kodwa i-soft back ayibonakali kulesi simo.
# 5 Izingxenye zamavalvu ovemvane--Indawo yokuvala
kukhona ukubekwa uphawu okuthambile kanye nokuvala okunzima,Ukukhetha izinto ezithambile zokuvala uphawu:
1, Irabha (kuhlanganise nerabha ye-butadiene, irabha ye-EPDM, njll.), esetshenziswa kakhulu kumapayipi anengcindezi ephansi phezu kukawoyela namanzi.
2、 IPlastiki (PTFE, inayiloni, njll.), okuningi kumidiya egqwalayo esendleleni.
Imodi yokusebenza: isibambo, i-turbo, ugesi, i-pneumatic, i-hydraulic
Ukukhetha izinto eziqinile ze-seal:
1, ingxubevange yethusi (for low-pressure valves)
2, insimbi engagqwali ye-Chrome (yama-valve ajwayelekile aphezulu naphakathi)
3, Ingxubevange ye-Stellite (yezinga lokushisa eliphezulu kanye nama-valve anengcindezi ephezulu kanye nama-valve anamandla agqwalayo)
4, ama-alloys asekelwe ku-nickel (yemidiya egqwalayo)
# 6 Izingxenye zamavalvu ovemvane--I-Actuator yokusebenza
Ama-valve ovemvane avame ukusebenza kulokhu okulandelayo, I-Hand Lever, Igiya Le-Worm, I-Pneumatic Actuator.
Izinsimbi zezandla ngokuvamile zenziwe ngeziqinile, zifakwe amakhemikhali, futhi zimbozwe ngempushana.I-lever yesandla ngokuvamile iqukethe isibambo kanye ne-lever ehlanganisiwe, Ifanele i-DN40-DN250.
Igiya lezikelemu lilungele ama-valve amakhulu ovemvane.I-gearbox yezikelemu ivamise ukusebenzisa osayizi abakhulu kune-DN250, asekhona amabhokisi e-turbine anezigaba ezimbili nezigaba ezintathu.
Ama-activators womoya ahlukaniswe izigaba ezimbili, ama-acting single and double-acting pneumatic actuators.
Ama-actuator kagesi angahlukaniswa abe yizinhlobo zokujika okuningi kanye nezinhlobo zokujika ingxenye.Uhlobo lokujika okuningi luphendulela ngaphezu kuka-360° ukuze uvule futhi uvale ivalvu kuyilapho uhlobo lwe-part-turn lujika ngokujwayelekile u-90° ukuze luvule futhi luvale ngokugcwele ivalvu.
Okulandelayo, ake sibheke indlela yokufaka izingxenye ze-valve butterfly ndawonye