3. Ukuvuza kwendawo yokutywina

Isizathu:

(1) Ukutywina umphezulu wokusila ungalingani, awukwazi ukwenza umgca osondeleyo;

(2) Umbindi ophezulu woqhagamshelo phakathi kwesiqu sevalve kunye nenxalenye yokuvala uxhonyiwe, okanye unxitywe;

(3) Isiqu sevalve sigobile okanye sidityaniswa ngendlela engafanelekanga, ukuze iindawo zokuvala zijike okanye zingabikho ndawo;

(4) Ukukhetha okungafanelekanga kokutywinwa komgangatho wezinto ezibonakalayo okanye ukhetho lwevalvu ngokwemiqathango yokusebenza.

Indlela yokugcina:

(1) Khetha izinto kunye nohlobo lwegasket ngokuchanekileyo ngokweemeko zokusebenza;

(2) Ukulungelelaniswa ngononophelo, ukusebenza kakuhle;

(3) Ibholithi kufuneka ifane kwaye ijijwe ngokulinganayo, kwaye isikrufu setorque kufuneka sisetyenziswe xa kukho imfuneko. Amandla okuqinisa kwangaphambili kufuneka ahlangabezane neemfuno kwaye akufanele abe mkhulu kakhulu okanye omncinci. I-Flange kunye nentambo yokudibanisa kufuneka ibe ne-gap ethile yokuqinisa kwangaphambili;

(4) Idibaniso ye-gasket kufuneka ihlangabezane namandla achanekileyo, afanayo, i-gasket ayivumelekanga ukuba ijikeleze kwaye isebenzise i-gasket kabini;

(5) I-static yokutywinwa komhlaba umhlwa, ukusetyenzwa komonakalo, umgangatho wokucubungula awuphezulu, kufuneka ulungiswe, ukugaya, ukuhlolwa kombala, ukuze umphezulu wokutywina omileyo uhlangabezane neemfuno ezifanelekileyo;

(6)Ufakelo lwe-gasket kufuneka luthathele ingqalelo kwindawo ecocekileyo, indawo yokutywina kufuneka icace i-kerosene, i-gasket mayingawi.

4. Ukuvuza kuqhagamshelwano lweringi yokutywina

Isizathu:

(1) Umsesane wokutywina awusongwanga ngokuqinileyo

(2) Umsesane wokutywina kunye ne-welding yomzimba, umgangatho we-welding ophantsi umbi;

(3) Umsonto wokudibanisa umsesane wokutywina, isikrufu, umsesane woxinzelelo ukhululekile;

(4) Umsesane wokutywina udityanisiwe kwaye udliwe.

Indlela yokugcina:

(1) Ukuvuza kwindawo yokutywina kufuneka kuzaliswe ngokuncamathelisa kwaye emva koko isongwe kwaye ilungiswe;

(2) Umsesane wokutywina kufuneka ulungiswe ngokweenkcukacha ze-welding. Ukuba indawo engaphezulu ayinakulungiswa, umgangatho wokuqala kunye nokulungiswa kufuneka kususwe;

(3) Susa i-screw, coca i-ring pressure, ubuyisele iindawo ezonakalisiweyo, ugaye ukutywinwa kunye nokudibanisa isihlalo esikufutshane, kwaye udibanise kwakhona. Iinxalenye ezonakaliswe yi-corrosion zinokulungiswa nge-welding, i-bonding, njl.

(4) Indawo yokudibanisa ikhonkco yokutywina i-corrod, enokuthi ilungiswe ngokusila, i-bonding, njl., kwaye ikhonkco lokutywina kufuneka litshintshwe xa lingenakulungiswa.

5. Ukuvuza komzimba wevalvu kunye nesivalo sevalvu:

Isizathu:

(1)Umgangatho wokujula ngentsimbi awukho phezulu, umzimba wevalvu kunye nesigqubuthelo sevalve unemingxuma yesanti, ulungelelwaniso oluxengayo, ukubandakanywa kwe-slag kunye nezinye iziphene;

(2) Intanda yomkhenkce;

(3) I-welding engafanelekanga, kukho ukufakwa kwe-slag, i-non-welding, i-stress cracks kunye nezinye iziphene;

(4)Ivalve yentsimbi yonakaliswe emva kokubethwa zizinto ezinzima.

Indlela yokugcina:

(1) Ukuphucula umgangatho wokuphosa, kwaye uqhube uvavanyo lwamandla ngokungqongqo ngokwemigaqo ngaphambi kofakelo;

(2) Kwiivalvu ezinamaqondo obushushu angaphantsi kwe-0 ° kunye ne-0 °, ukugcinwa kobushushu okanye ukuxuba kufuneka kwenziwe, kwaye amanzi kufuneka angabandakanywa kwiivalvu eziye zayeka ukusetyenziswa;

(3) I-weld yomzimba wevalve kunye nesigqubuthelo sevalve eyenziwe ngokudibanisa i-welding kufuneka iqhutywe ngokwemigaqo ye-welding efanelekileyo, kwaye ukufumanisa impazamo kunye novavanyo lwamandla kufuneka lwenziwe emva kwe-welding;

(4) Akuvumelekanga ukutyhala izinto ezinzima kwivalve, kwaye akuvumelekanga ukuchaphazela intsimbi etyhidiweyo kunye neevalvu ezingezizo ezentsimbi ngehamile yesandla.

Wamkelekile kwiJinbinvalve– umenzi wevalvu ekumgangatho ophezulu, unokuziva ukhululekile ukuqhagamshelana nathi xa ufuna! Siza kwenza esona sisombululo silungileyo kuwe!