Ivalve yeplagi luhlobo lokutshintsha okukhawulezileyo kwivalvu kuba inokuthintela ngokupheleleyo ukudibana nendawo yokuhamba ngokuhamba phakathi komphezulu wokutywina kunye nesenzo sokusula kwaye ivuleke ngokupheleleyo, iyenze iqhele ukusetyenziselwa imidiya enamasuntswana axhonyiweyo. Ubulula bayo bokulungelelaniswa kolwakhiwo lweetshaneli ezininzi kuthetha ukuba ivalve inokufumana ngokulula ezimbini, ezintathu, okanye ezine iitshaneli zokuqukuqela ezahlukeneyo. Oku kwenza uyilo lwemibhobho lube lula kwaye kwehlisa ubuninzi beevalvu kunye noqhagamshelo olufunekayo kwisixhobo.
Ezi ngqwalasela zine zilandelayo kufuneka zithathelwe ingqalelo xa ufaka ivalve yeplagi ukuze uyikhusele ekwenzakaleni kwaye uqinisekise ukuba iqhuba ngamandla ayo aphezulu:
1. Qinisekisa ukuba ivalve ivuliwe. Fudumeza umbhobho kuqala. Dlulisa ubushushu obuninzi obunokwenzeka ukusuka kumbhobho ukuya kwivalve yeqhude. Kuphephe ukwandisa ixesha lokufudumeza kwevalve yeplagi ngokwayo.
2. Ukwenza iindawo zetsimbi zemibhobho kunye namacandelo anqunywe akhanye, zihlambulule nge-gauze okanye i-brush yocingo. Akucetyiswa ukuba unxibe i-velvet yensimbi.
3. Okokuqala, nquma umbhobho ngokuthe nkqo, i-burrs kufuneka ihlanjululwe kwaye isuswe, kwaye ububanzi bombhobho kufuneka bulinganiswe.
4. Flux ngaphakathi kwekhava ye-weld kunye nomphandle wombhobho. Umphezulu we-weld kufuneka ugqunywe ngokucokisekileyo kwi-flux. Nceda ulumke xa usebenzisa i-flux.
Uluhlu loyilo lwevalvu yeplagi yeJLPV luloluhlobo lulandelayo:
1. Ubungakanani: 2 "ukuya kwi-14" DN50 ukuya kwi-DN350
2. Uxinzelelo: Iklasi 150lb ukuya 900lb PN10-PN160
3. Izinto eziphathekayo: i-carbon steel, insimbi engenasici kunye nezinye izinto eziqhelekileyo zetsimbi.
I-NACE MR 0175 i-anti-sulfur kunye ne-anti-corrosion metal materials.
4. Uqhagamshelo luphela: ASME B 16.5 kubuso obuphakanyisiweyo (RF), ubuso obuFlat (FF) kunye noLuhlu lweRingi ngokudibeneyo (RTJ)
I-ASME B 16.25 kwisiphelo esikrufu.
5. Imilinganiselo yobuso ngobuso: ihambelana ne-ASME B 16.10.
6. Ubushushu: -29℃ ukuya ku-450℃
Iivalvu ze-JLPV zinokuxhotyiswa nge-gear operator, ii-pneumatic actuators, ii-hydraulic actuators, ii-actuator zombane, ii-bypasses, izixhobo zokutshixa, ii-chainwheels, iziqu ezandisiweyo kunye nezinye ezininzi ziyafumaneka ukuhlangabezana neemfuno zabathengi.