1. Xa icandelo lokuvala liphuma, ukuvuza kwenzeka.

isizathu:

1. Ukusebenza ngokungafanelekanga kubangela ukuba amacandelo okuvala axinge okanye adlule kwindawo ephezulu yokufa, okukhokelela ekonakaleni kunye noqhagamshelo loqhagamshelo;

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

3. Isiqwenga sokudibanisa asizange sikhethwe ngokucokisekileyo, kwaye asikwazi ukunyamezela i-corrosion ye-medium kunye nokugqoka komatshini.

Isicwangciso sogcino

1. Ukuqinisekisa ukusebenza ngokufanelekileyo, vala i-ivalvengobunono kwaye uyivule ngaphandle kokuya ngasentla kwindawo efileyo.Ivili lesandla kufuneka liguqulwe kancinci ngasemva xa ivalve ivulwe ngokupheleleyo;

2. Kufuneka kubekho i-backstop kwi-threaded connection kunye nokudibanisa okukhuselekileyo phakathi kwecandelo lokuvala kunye ne-valve stem;

3. Izibophelelo ezisetyenziselwa ukujoyina iivalveisiqu kunye necandelo lokuvala kufuneka likwazi ukunyamezela i-corrosion ephakathi kwaye ibe nenqanaba elithile lamandla omatshini kunye nokumelana nokunxiba.

2. Ukupakisha ukuvuza (ngaphandle kweukuvuza kwevalvu,ukupakisha ukuvuza kuphezulu).

isizathu:

1. Ukukhetha ukupakisha okungalunganga;ukusebenza kwevalve kumaqondo aphezulu okanye aphantsi;ukuxhathisa umhlwa okuphakathi;uxinzelelo oluphezulu okanye ukuchasana kwe-vacuum;2. Ufakelo lokupakisha olungachanekanga, kubandakanywa iziphene ezinje zincinci zokutshintshwa okukhulu, ukungonelanga koqhagamshelo olujijekileyo olujijekileyo, kunye nomphezulu oqinileyo kunye nomzantsi okhululekileyo;

3. Isigcwalisi sigugile, siphelelwe ngamandla, kwaye siphulukene nokuguquguquka.

4. Ukuchaneka kwesikhondo sevalve kuphantsi, kwaye kukho iziphene ezibandakanya ukugoba, ukubola, kunye nokuguga.

5. Idlala alicinezelwa ngokuqinileyo kwaye azikho izangqa ezaneleyo zokupakisha.

6. Idlala, iibholiti, kunye nezinye iinxalenye zonakele, nto leyo eyenza kube nzima ukutyhala idlala ngokuqinileyo;

7. Ukusetyenziswa ngokungafanelekanga, amandla angafanelekanga, njl.;

8. Idlala ligoso, kwaye isithuba esiphakathi kwedlala kunye nesiqu sevalve siba mfutshane kakhulu okanye sikhulu kakhulu, nto leyo ebangela ukuba isiqu sevalve siguge phambi kwexesha kwaye ukupakishwa kwenzakale.

Isicwangciso sogcino

1. Izinto zokuzalisa kunye nobubele kufuneka zikhethwe ngokusekelwe kwiimeko zokusebenza;

2. Faka ukupakisha ngokuchanekileyo ngokuhambelana nemimiselo esebenzayo.I-junction kufuneka ibe kwi-30 ° C okanye i-45 ° C, kwaye isiqwenga ngasinye sokupakisha kufuneka sibekwe kwaye sihlanganiswe ngabanye.3. Ukupakishwa kufuneka kutshintshwe ngokukhawuleza xa ifikelela ekupheleni kobomi bayo obuluncedo, ubudala, okanye yonakaliswe;

4. Isiqu sevalve esonakeleyo kufuneka sitshintshwe ngokukhawuleza emva kokuba sigobile kwaye sigugile;kufuneka emva koko ilungiswe kwaye ilungiswe.

5. I-gland kufuneka ibe ne-gap yangaphambili yokuqinisa ngaphezu kwe-5mm, ukupakishwa kufuneka kufakwe usebenzisa inani elimiselweyo lokujika, kwaye i-gland kufuneka iqiniswe ngokulinganayo kunye ne-symmetrically.

6. Iibholithi, amadlala, nezinye iindawo ezonakeleyo kufuneka zilungiswe ngokukhawuleza okanye zitshintshwe;

7. Imiyalelo yokusebenza kufuneka ilandelwe, kunye ne-handwheel enempembelelo esebenza ngamandla aqhelekileyo kunye nesantya esihambelanayo;

8. Qinisa iibholithi zedlala ngokulinganayo nangokulinganayo.Isithuba esiphakathi kwedlala nesikhondo sevalvu kufuneka sandiswe ngokufanelekileyo ukuba sincinci kakhulu, okanye kufuneka sitshintshwe ukuba sikhulu kakhulu.

3. Umphezulu wokutywina uyavuza

isizathu:

1. Umphezulu wokutywina awukwazi ukwenza umgca osondeleyo kwaye awusicaba;

2. Isivalo soqhagamshelo lwelungu lokuvala iziko eliphezulu alilungelelaniswanga kakuhle, lonakele, okanye lijinga;

3. Amalungu okuvala ajijekile okanye angabikho embindini ngenxa yokuba isiqu sevalve siphenjelelwe okanye sakhiwe ngendlela engafanelekanga;

4. I-valve ayikhethwanga ngokuhambelana neemeko zokusebenza okanye umgangatho wezinto eziphathekayo zokutywinwa awukhethwanga ngokuchanekileyo.

Isicwangciso sogcino

1. Khetha ngokufanelekileyo uhlobo lwe-gasket kunye nezinto eziphathekayo ngokuhambelana nendawo yokusebenza;

2. Ukuseta ngononophelo kunye nokusebenza okuhlengahlengisiweyo;

3. Iibholithi kufuneka zilingane kwaye ziqiniswe ngokulinganayo.Isitshixo setorque kufuneka sisetyenziswe ukuba siyafuneka.Amandla okuqinisa kwangaphambili kufuneka anele kwaye angabi phezulu kakhulu okanye aphantsi kakhulu.Phakathi kwe-flange kunye noxhumo oludibeneyo, kufuneka kubekho i-gap yangaphambili yokuqinisa;

4. Amandla kufuneka afane kwaye i-gasket assembly kufuneka igxininiswe.Akuvumelekanga ukusebenzisa i-gaskets ephindwe kabini kunye nokugubungela i-gaskets;

5. Umphezulu wokutywina omileyo uye wacutshungulwa kwaye wonakaliswa, wonakaliswa, kwaye unomgangatho ophantsi wokusetyenzwa.Ukuqinisekisa ukuba umphezulu omileyo wokutywina uyanelisa imilinganiselo efunekayo, ukulungiswa, ukucola, kunye neemviwo zombala kufuneka zenziwe;

6. Qaphela ukucoceka xa ufaka i-gasket.I-kerosene kufuneka isetyenziswe ukucoca umphezulu wokutywina, kwaye i-gasket ayifanele iwe phantsi.