Kwiivalvu zokumisa ezivuleke ngokupheleleyo okanye ezivalwe ngokupheleleyo, iivalvu zesango ziyasetyenziswa. Zisetyenziswa rhoqo kumanzi, umphunga, iimveliso ze-oyile, njl. kunokuba i-throttling.Zisetyenziswa kakhulu kwi-petroleum, iikhemikhali, ukutya, amayeza, i-textile, amandla, i-marine, i-metallurgy, kunye ne-energy systems systems, phakathi kwabanye.
Iivalvu zesango zineweji eshukumayo ehamba ngokusabela kwintshukumo ye-stem nut. I-wedge ihamba ngokuthe ngqo kwicala lokuhamba.
Iivalvu zesango zinelahleko encinci yoxinzelelo xa ivuleke ngokupheleleyo kwaye inika ukuvalwa okuqinileyo xa ivalwe ngokupheleleyo ngenxa yokwakhiwa kokutywinwa kabini.
Iimpawu eziphambili zokwakha zevalve yesango ye-JLPV zilandelayo:
1.Kukho uyilo oluqhelekileyo lwe-wedge ye-wedge, uyilo oluqinileyo lwe-wedge, kunye noyilo lwe-wedge ephindwe kabini.
Iziqwenga eziguquguqukayo eziqhelekileyo ziyakwazi ukubuyisela ukwandiswa okuncinci kwe-elasto-thermal kunye nokuguqulwa, ukuqinisekisa rhoqo, uqhagamshelwano olufanelekileyo kunye nezihlalo kunye nokugcina ukuqina kwesihlalo phantsi koxinzelelo oluhlukeneyo kunye namaqondo obushushu.
I-2.Isihlalo esinomzimba odibeneyo okanye isihlalo esidityaniswe kwizinto ezahlukeneyo
Iiprothokholi ze-WPS zilandelwe ngokungqongqo kwi-weld overlay. Ubuso beringi yesihlalo bunomatshini, bucocwe ngobuchule, kwaye buhlolwe phambi kokuba bahambe baye kwindibano emva kokuwelda kunye naluphi na unyango oluyimfuneko.
3.Isikhondo sentloko ye-T esidityanisiweyo nesitywina sebhonethi ephezulu kunye netywina lokupakisha
Isiqu esimilo sentloko ye-T sisebenza njengekhonkco kwisango. Ngokuqina okuchanekileyo kwindawo yokupakisha kunye nobomi obude ngenxa yobukhulu obuchanekileyo kunye nokugqitywa, kukho ukukhutshwa okuncinci kokubaleka.
Uluhlu loyilo lwevalvu yesango ye-JLPV luloluhlobo lulandelayo:
1.Ubungakanani: 2 "ukuya ku-48" DN50 ukuya kwi-DN1200
2.Uxinzelelo: Udidi lwe-150lb ukuya kwi-2500lb PN10-PN420
I-3.Izinto eziphathekayo: Insimbi yeCarbon kunye nensimbi engenasici kunye nezinye izinto ezikhethekileyo.
I-NACE MR 0175 i-anti-sulfur kunye ne-anti-corrosion metal materials
4.Uqhagamshelo luphela: ASME B 16.5 kubuso obuphakanyisiweyo (RF), ubuso beFlat (FF) kunye noLuhlu lweRingi ngokudibeneyo (RTJ)
ASME B 16.25 kwiziphelo ze-butt welding.
5.Imilinganiselo yobuso ngobuso: ihambelana ne-ASME B 16.10.
6.Ubushushu: -29℃ ukuya ku-425 ℃
Iivalvu ze-JLPV zinokuveliswa kuzo zonke iintlobo zemathiriyeli ukuhlangabezana neemfuno ezahlukeneyo kubathengi, ngakumbi kumgangatho we-NACE.
Iivalvu ze-JLPV zinokuxhotyiswa ngesixhobo somqhubi wegiya, ii-actuator zepneumatic, ii-actuator ze-Hydraulic, ii-actuator zoMbane, ii-bypasses, izixhobo zokutshixa, ama-chainwheels, izikhondo ezandisiweyo kunye nezinye ezininzi ziyafumaneka ukuhlangabezana neemfuno zabathengi.
