Amaphuzu Abalulekile Okufakwa Kwe-Pipeline Valve Imininingwane

I. Ukulungiselela Ngaphambi Kokufaka

1. Hlola imodeli yencazelo yevalvu, izinga lokucindezela, kanye nokuhlonza isiqondiso sokugeleza ukuqinisekisa ukuthi ihlangabezana nezidingo zomklamo.

2. Hlola ukuhlanzeka komgodi womzimba we-valve bese ususa izinto zokuvikela zokupakisha nezinto zangaphandle.

3. Amavalvu okuxhumanisa i-Butt welding adinga ukwakhiwa ngaphambili ane-grooves, kanti amavalvu okuxhumanisa i-flange adinga ukuhlola ubuqotho bendawo yokuvala.

II. Ukulawulwa Kwesiqondiso Sokufaka

1. Ivalvu yomhlaba kanyeivalvu yokuhlola ukuphakama okuqondilekumele ifakwe ngokuqinile ohlangothini olukhonjiswe umcibisholo emzimbeni wevalvu.

2. Ngokwesimiso,ivalvu yesiqu engavuki, ivalvu yebhabhathane yohlobo lwamanzi, kanye nama-ball valve angafakwa kuzo zombili izinhlangothi, kodwa kufanele kuqashelwe ukuthi kulula ukusebenza.

3. Amavalvu kagesi/omoya adinga ukubekela eceleni isikhala sokusebenza nokugcinwa kwe-actuator.

III. Imininingwane Yokufakwa Kokushisela

1. Ivalvu yokushisela yezinqe kufanele igcinwe ivulekile phakathi nesikhathi sokushisela ukuvimbela ukuminyana okubangelwa ukuguquka kokushisa.

2. Sebenzisa i-argon arc welding ukwenza isisekelo, futhi ulawule izinga lokushisa le-interlayer ukuthi lingadluli izinga lokushisa elilinganiselwe le-valve.

3. Ngemva kokushisela, ivalvu kumele ihlolwe ngendlela esebenza ngayo ukuqinisekisa ukuthi iyavuleka futhi ivala ngendlela evamile.

IV. Amaphuzu Abalulekile Okuxhumana Kwe-Flange

1. Izindawo zokuvala i-flange zihlala zihambisana, futhi ukuphambuka okuphezulu okuvunyelwe akudluli u-0.15% wobubanzi bangaphandle be-flange.

2. I-gasket kufanele ibekwe phakathi nendawo, amabhawodi kufanele aqiniswe ngokulinganayo nangokulinganayo, futhi i-torque ekalwe kufanele ifinyelelwe kathathu.

3. Amabhawodi okuxhuma amavalvu okushisa okuphezulu kufanele aqiniswe kabili esimweni sokushisa.

V. Ukulawulwa Kwekhwalithi

1. Ukuhlolwa kwamandla kanye nokuhlolwa kokuvala kuyadingeka ngemuva kokufakwa.

2. Uma uhlanza uhlelo, ivalvu yokulawula, imitha yokugeleza kanye neminye imishini kufanele idlule.

3. Gcwalisa irekhodi lokufaka, kufaka phakathi idatha ebalulekile njengenombolo yesikhundla se-valve, ingcindezi yokuhlola, i-torque yokusebenza, njll.

Qaphela: Ivalvu akumele isetshenziswe njengendawo yokusekela ipayipi. Amavalvu amakhulu adinga uhlaka lokusekela oluhlukile. Ngemva kokufakwa, ivalvu kufanele ivalwe ngokuphelele futhi ivikelwe ukuze kugwenywe umonakalo wokusebenza okuhlangene.