Kumavalvu okumisa avuleke noma avaleke ngokuphelele, kusetshenziswa amavalvu esango. Zivame ukusetshenziselwa amanzi, umusi, imikhiqizo kawoyela, njll esikhundleni sokudonsa.Zisetshenziswa kakhulu ezimbonini ze-petroleum, amakhemikhali, zokudla, ezemithi, zendwangu, zamandla, zasolwandle, ze-metallurgy, nezamandla, phakathi kokunye.
Amavalvu esango anomphetho onyakazayo ohambisana nokuhamba kwe-stem nut. Iweji inyakaza iqonde lapho kugeleza khona.
Amavalvu esango ngokuvamile anokuncipha kokucindezela okuncane lapho evuleke ngokuphelele futhi anikeze ukuvala okuqinile lapho evalwe ngokugcwele ngenxa yokwakhiwa kwawo okuvaleka kabili.
Izici eziyinhloko zokwakha ze-valve yesango le-JLPV yilezi ezilandelayo:
1.Kunemiklamo ejwayelekile yesiqephu esisodwa seweji, imiklamo eqinile ye-wedge, kanye nemiklamo ye-double wedge.
Ama-wedge ajwayelekile anesiqephu esisodwa ayakwazi ukubuyisela ukunwebeka nokushintsha kwe-elasto-thermal okuncane, aqinisekise ukuthintana okungaguquki, okufanelekile nezihlalo kanye nokugcina ukumpintshana kwezihlalo ngaphansi kwezingcindezi namazinga okushisa ahlukahlukene.
2.Isihlalo esinomzimba ohlanganisiwe noma isihlalo esishiselwe ezintweni ezihlukahlukene
Amaphrothokholi e-WPS alandelwe ngokuqinile imbondela eshiselwe. Ubuso bendandatho yezihlalo bushintshwa ngomshini, buhlanzwe ngokucophelela, futhi buhlolwe ngaphambi kokuya kuhlanganiswe ngemva kokushiselwa kanye nanoma yikuphi ukwelapha okudingekile kokushisa.
3.Isiqu se-T-head esihlanganisiwe esinophawu lwebhonethi ephezulu kanye nesigxivizo sokupakisha
Isiqu se-T-head shape sisebenza njengesixhumanisi sesango. Ngokuqina okunembile endaweni yokupakisha nempilo ende ngenxa yobukhulu obunembile kanye nokuqedwa, kukhona ukukhishwa okuncane okubalekayo.
Ububanzi bomklamo we-valve wesango le-JLPV limi kanje:
1.Usayizi: 2” kuya ku-48” DN50 kuya ku-DN1200
2.Ingcindezi: Ikilasi 150lb ukuya ku-2500lb PN10-PN420
3.Material: Insimbi ye-Carbon nensimbi engagqwali nezinye izinto ezikhethekile.
I-NACE MR 0175 anti-sulphur kanye nezinto zensimbi ezilwa nokugqwala
4.Ukuxhumana kuyaphela: ASME B 16.5 ebusweni obuphakanyisiwe(RF), Ubuso obuyisicaba(FF) kanye Nokuhlanganiswa Kohlobo Lwendandatho (RTJ）
I-ASME B 16.25 kuma-butt welding ends.
5.Ubukhulu bobuso nobuso: buvumelana ne-ASME B 16.10.
6.Izinga lokushisa: -29℃ ukuya ku-425 ℃
Amavalvu e-JLPV angenziwa ngazo zonke izinhlobo zezinto ukuze ahlangabezane nezidingo ezahlukene ezivela kumakhasimende, ikakhulukazi ngokwezinga le-NACE.
Ama-valve e-JLPV angafakelwa ama-gear operator, ama-actuator wepneumatic, ama-Hydraulic actuators, ama-Actuator kagesi, ama-bypasses, amadivaysi okukhiya, ama-chainwheels, iziqu ezinwetshiwe nokunye okuningi kuyatholakala ukuze kuhlangatshezwane nezidingo zamakhasimende.
