1. Xa icandelo lokuvala likhululekile, kuphuma ukuvuza.

isizathu:

1. Ukusebenza okungasebenzi kakuhle kubangela ukuba izinto zokuvala zibambeke okanye zidlule indawo ephezulu efileyo, nto leyo ebangela ukuba uqhagamshelo lonakale kwaye luqhekeke;

2. Uqhagamshelo lwenxalenye yokuvala lubuthathaka, lukhululekile, kwaye aluzinzanga;

3. Izinto ezidityanisiweyo azikhethwanga ngononophelo, kwaye azikwazi ukumelana nokugqwala kwesixhobo kunye nokonakala komatshini.

Isicwangciso sokulungisa

1. Ukuqinisekisa ukusebenza ngokufanelekileyo, valaivalvuuyivule kancinci ngaphandle kokudlula kwindawo engasentla. Ivili lesandla kufuneka lijikwe kancinci xa ivalvu ivuliwe ngokupheleleyo;

2. Kufuneka kubekho i-backstop kuqhagamshelo olunemisonto kunye noqhagamshelo olukhuselekileyo phakathi kwecandelo lokuvala kunye nesiqu sevalvu;

3. Izibophelelo ezazisetyenziswa ukujoyinaivalvuIsiqu kunye necandelo lokuvala kufuneka zikwazi ukunyamezela ukugqwala okuphakathi kwaye zibe nenqanaba elithile lamandla oomatshini kunye nokumelana nokuguguleka.

2. Ukupakisha ukuvuza (ngaphandleukuvuza kwevalvu,ukuvuza kokupakisha kokona kuphezulu).

isizathu:

1. Ukukhetha ukupakisha okungachanekanga; ukusebenza kwevalvu kumaqondo obushushu aphezulu okanye aphantsi; ukumelana nokugqwala okuphakathi; ukumelana noxinzelelo oluphezulu okanye ulwelo olungenasikhewu; 2. Ukufakelwa kokupakisha okungachanekanga, kubandakanya iimpazamo ezincinci zokutshintshwa okukhulu, ukunxibelelana okunganelanga okujikelezileyo, kunye nomphezulu oqinileyo kunye nomzantsi okhululekileyo;

3. Isixhobo sokuzalisa sigugile, siphelelwe lixesha, kwaye silahlekelwe bububhetyebhetye baso.

4. Ukuchaneka kwesiqu sevalvu kuphantsi, kwaye kukho iziphene eziquka ukugoba, ukubola, kunye nokuguguleka.

5. I-gland ayicinezelwanga kakuhle kwaye akukho zangqa zaneleyo zokupakisha.

6. I-gland, ii-bolts, kunye nezinye izinto zonakele, nto leyo eyenza kube nzima ukuyityhala ngokuqinileyo i-gland;

7. Ukusetyenziswa kakubi, amandla agqithisileyo, njl.njl.;

8. I-gland igobile, kwaye isithuba esiphakathi kwe-gland kunye nesiqu se-valve sifutshane kakhulu okanye sikhulu kakhulu, nto leyo ebangela ukuba isiqu se-valve siguge ngaphambi kwexesha kwaye ukupakisha konakaliswe.

Isicwangciso sokulungisa

1. Izinto zokugcwalisa kunye nohlobo kufuneka zikhethwe ngokusekwe kwiimeko zokusebenza;

2. Faka ukupakisha ngokuchanekileyo ngokwemigaqo efanelekileyo. Indawo yokuhlangana kufuneka ibe kwi-30°C okanye kwi-45°C, kwaye isiqwenga ngasinye sokupakisha kufuneka sibekwe kwaye sixinaniswe ngokwahlukeneyo. 3. Ukupakisha kufuneka kutshintshwe kwangoko nje ukuba kufikelele esiphelweni sobomi baso obuluncedo, kuguga, okanye konakale;

4. Isiqu sevalvu esonakeleyo kufuneka sitshintshwe ngokukhawuleza emva kokuba sigobile kwaye sigugile; emva koko kufuneka silungiswe size silungiswe.

5. I-gland kufuneka ibe nomsantsa wokuqina ongaphezulu kwe-5mm, ukupakisha kufuneka kufakelwe inani elimiselweyo lokujika, kwaye i-gland kufuneka iqiniswe ngokulinganayo nangokulinganayo.

6. Iibholiti, ii-glands, kunye nezinye iindawo ezonakeleyo kufuneka zilungiswe okanye zitshintshwe ngokukhawuleza;

7. Imiyalelo yokusebenza mayilandelwe, ivili elinomoya ovuthuzayo lisebenza ngamandla aqhelekileyo kunye nesantya esilinganayo;

8. Qinisa iibholithi zegland ngokulinganayo nangokulinganayo. Isithuba esiphakathi kwegland kunye nesiqu sevalvu kufuneka sandiswe ngokufanelekileyo ukuba sincinci kakhulu, okanye kufuneka sitshintshwe ukuba sikhulu kakhulu.

3. Umphezulu wokuvala uyavuza

isizathu:

1. Umphezulu wokutywina awunakwenza umgca osondeleyo kwaye awuthe tyaba;

2. Umbindi ophezulu woqhagamshelo lwelungu oluvela kwisiqu sevalvu ukuya ekuvaleni awulungelelananga kakuhle, wonakele, okanye uxhonyiwe;

3. Izinto ezivalayo zijijekile okanye azikho embindini ngenxa yokuba isiqu sevalvu siphazamisekile okanye sakhiwe ngendlela engafanelekanga;

4. Ivalvu ayikhethwanga ngokweemeko zokusebenza okanye umgangatho wezinto zokutywina awukhethwanga ngokuchanekileyo.

Isicwangciso sokulungisa

1. Khetha ngokufanelekileyo uhlobo lwegasket kunye nezinto ezisetyenziswayo ngokuhambelana nemeko yokusebenza;

2. Ukuseta ngononophelo kunye nokusebenza okulula;

3. Iibholithi maziqiniswe ngokulinganayo nangokulinganayo. Kufuneka kusetyenziswe isikrufu se-torque ukuba kuyimfuneko. Amandla okuqinisa kwangaphambili kufuneka abe anele kwaye angabi phezulu kakhulu okanye angabi phantsi kakhulu. Phakathi kweflange kunye noqhagamshelo olunemisonto, kufuneka kubekho isithuba sokuqinisa kwangaphambili;

4. Amandla kufuneka afane kwaye i-gasket assembly mayibe phakathi. Akuvumelekanga ukusebenzisa ii-gaskets ezimbini kunye nokudibanisa ii-gaskets;

5. Umphezulu wokutywina ongashukumiyo ucutshungulwe kwaye ubolile, wonakele, kwaye usemgangathweni ophantsi wokusetyenzwa. Ukuqinisekisa ukuba umphezulu wokutywina ongashukumiyo uyahlangabezana neemfuno ezifunekayo, kufuneka kwenziwe ukulungiswa, ukugaywa, kunye nokuhlolwa kombala;

6. Lumka ucoceko xa ufaka i-gasket. I-Kerosene mayisetyenziselwe ukucoca umphezulu wokuvala, kwaye i-gasket mayingawi phantsi.