Incwadana yemigaqo yofakelo yevalve yebhabhathane yombane

1. Beka ivalve phakathi kweeflange ezimbini ezifakwe ngaphambili (ivalve yebhabhathane yeflange ifuna indawo efakwe ngaphambili yegasket kuzo zombini iziphelo)

2. Faka iibholithi kunye namantongomane kwiziphelo zombini kwimingxunya yeflange ehambelanayo kuzo zombini iziphelo (indawo yegasket yevalve yebhabhathane yeflange kufuneka ihlengahlengiswe), kwaye uqinise amantongomane kancinci ukulungisa ukucaba komphezulu weflange.

3. Lungisa i-flange kumbhobho ngokudibanisa indawo.

4. Susa ivalve.

5. Weld flange ngokupheleleyo kumbhobho.

6. Emva kokuba umdibaniso wokuwelda upholile, fakela ivalve ukuqinisekisa ukuba ivalve inendawo eyaneleyo eshukumayo kwiflange ukuthintela ivalve ukuba yonakale, kwaye uqinisekise ukuba ipleyiti yebhabhathane inenqanaba elithile lokuvula (ivalve yebhabhathane yeflange kufuneka yongeza i-gasket yokutywina); lungisa indawo yevalve kwaye uqinise zonke iibholiti (qaphela ukuba ungajikiji kakhulu); vula ivalve ukuqinisekisa ukuba ipleyiti yevalve inokuvula kwaye ivale ngokukhululekileyo, uze wenze ipleyiti yevalve ivuleke kancinci.

7. Qinisa onke amandongomane ngokulinganayo.

8. Qinisekisa ukuba ivalve inokuvula kwaye ivale ngokukhululekileyo. Qaphela: qiniseka ukuba ipleyiti yebhabhathane ayichukumisi umbhobho.

Qaphela: i-stroke yokuvula nokuvalwa kwendlela yokulawula iye yahlengahlengiswa xa ivalve yebhabhathane yombane ishiya umzi-mveliso. Ukuze kuthintelwe indlela engalunganga xa umbane uqhagamshelwe, umsebenzisi kufuneka avule ngesandla kwisiqingatha (50%) isikhundla phambi kokudibanisa unikezelo lwamandla, kwaye emva koko ucinezele iswitshi yombane ukujonga iswitshi kwaye ujonge indlela yokuvula yevalve yesikhokelo. yevili lomqondiso.