Iingcebiso Zokukhetha Nokusebenzisa Iivalvu Zokunciphisa Uxinzelelo

1. Qonda Injongo kunye neMiqathango yoSetyenziso

Ngaphambi kokukhethaivalvu yokunceda uxinzelelo, ichaza ngokucacileyo isizathu kunye nendawo eza kusetyenziswa kuyo. Iinkqubo ezahlukeneyo zibeka iimfuno ezahlukeneyo kwi-PRV. Izinto eziphambili ziquka:

• ①Uhlobo lolwelo (ulwelo, igesi, umphunga, okanye imidiya erhabaxa)

• ②Uxinzelelo oluqhelekileyo lokusebenza kunye nobushushu

• ③Uxinzelelo oluphezulu oluvumelekileyo lokusebenza (MAWP)

• ④Ukuphindaphinda kokutshintshatshintsha koxinzelelo

Ivalvu eyenzelwe inkonzo yomphunga, umzekelo, isenokungasebenzi ngokukhuselekileyo kwiinkqubo zolwelo. Ukufanisa uhlobo lwevalvu neemeko zokusebenza zokwenyani sisiseko sokukhetha okukhuselekileyo.

2. Khetha Uxinzelelo Oluchanekileyo

Uxinzelelo olubekwe luchaza ukuba ivalvu iza kuvulwa nini ukuze kuncitshiswe uxinzelelo olugqithisileyo. Kufuneka kusoloko kunje:Ngaphantsi koxinzelelo oluphezulu oluvumelekileyo lwenkqubo.Uxinzelelo olungaphezulu kwesiqhelo lokusebenza ukuze kuthintelwe ukuphakamisa izinto ezibangela iingxaki.

Njengomgaqo jikelele, uxinzelelo olubekweyo ludla ngokuba phezulu nge-10–15% kunoxinzelelo oluqhelekileyo lokusebenza, kuxhomekeke kwimigangatho nemigaqo yenkqubo. Uxinzelelo olubekweyo olungalunganga yenye yezona zinto zixhaphakileyo zokungasebenzi kakuhle kwe-PRV.

3. Khetha Uhlobo lweValve oluLungileyo

• Iivalvu zokunceda ezigcwele intwasahlobo: Isetyenziswa kakhulu, isakhiwo esilula, esifanelekileyo kwiimfuno ezininzi zoshishino

• Iivalvu zokunceda ezisetyenziswa yi-pilot: Ilungele iinkqubo ezinoxinzelelo oluphezulu ezisebenza ngokuzinzileyo kunye nokuvuza okuncinci

• Iivalvu zokunceda ubushushu: Yenzelwe ukukhusela ukunyuka koxinzelelo okubangelwa kukwanda kobushushu bolwelo

Ukuqonda iingenelo kunye nemida yohlobo ngalunye kuqinisekisa ukusebenza kakuhle kunye nobomi benkonzo obude.

4. Nika ingqalelo kwizixhobo kunye nemigangatho

• ①Ubhedu kwiinkqubo zamanzi ngokubanzi

• ②Faka intsimbi okanye intsimbi engatyiwayo ukuze isebenzise izinto ezicinezelayo okanye ezirhabaxa

• ③Ii-alloys zeBronze ezisetyenziselwa ukusetyenziswa elwandle

Ukongeza, qinisekisa ukuba ivalvu iyahambelana nemigangatho yamazwe ngamazwe efanelekileyo efana ne-ASME, API, ISO, okanye imvume yokuhlelwa kweendawo zasolwandle apho kufanelekileyo.

5. Izinto Ezifanelekileyo Zokufaka

• ①Faka ivalvu ngendlela eyiyo

• ②Qinisekisa ukuba imibhobho yokungena imfutshane, ithe tye, kwaye ayinamiqathango

• ③Kuphephe uxinzelelo olugqithisileyo lomqolo kwindawo yokuphuma

• ④Ungaze ufake iivalvu zokwahlukanisa phakathi kwePRV kunye nezixhobo ezikhuselweyo ngaphandle kokuba kuvunyelwe yikhowudi.

Ukufakela ngokuchanekileyo kuqinisekisa impendulo ekhawulezileyo kunye nokukhululeka okuchanekileyo koxinzelelo xa kubaluleke kakhulu.

6. Sebenzisa iValve ngaphakathi kwemida yoyilo lwayo

Iivalvu zokunciphisa uxinzelelo zizixhobo zokhuseleko, hayi iivalvu zokulawula. Kuphephe ukuzisebenzisa ukulawula uxinzelelo rhoqo. Ukuphakamisa rhoqo okanye ngokuphindaphindiweyo kunokukhokelela koku:Ukunxiba isihlalo.Ukuvuza.Ukuchaneka okuncitshisiweyo koxinzelelo olubekiweyo.

Ukusebenza kwenkqubo ezinzileyo kwandisa ubomi be-PRV kwaye kugcina ukuthembeka kwayo.

7. Ukuhlolwa rhoqo kunye novavanyo

Ukuhlolwa rhoqo kunye nokugcinwa kubalulekile. Iindlela ezilungileyo ziquka:

• ①Ukuhlolwa okubonakalayo rhoqo ukuze kubonwe ukugqwala, ukuvuza, okanye ukuvaleka

• ②Uvavanyo olusebenzayo ngokwendlela olusebenza ngayo inkqubo

• ③Ukulungiswa kwakhona okanye ukutshintshwa ngokusekelwe kwiingcebiso zomenzi

Kwiinkqubo ezibalulekileyo kukhuseleko, iirekhodi zohlolo ezibhaliweyo zihlala zifunwa yimithetho kunye neentlangano zokwahlulahlula.

8. Tshintsha iiValve eziDala okanye ezonakeleyo ngokukhawuleza

Iivalvu zokunciphisa uxinzelelo azizozinto ezisetyenziswa ubomi bonke. Izipilingi zinokuba buthathaka, izihlalo zinokonakala, kwaye izitywini zinokuqina ngokuhamba kwexesha. Ukuba ivalvu ibonisa iimpawu zokuvuza okuphindaphindiweyo, ukusebenza okungazinzanga, okanye umonakalo womzimba, ukutshintshwa kwayo kudla ngokukhuselekileyo kwaye kungabizi kakhulu kunokulungiswa.