1. Izinyathelo zokuhlanza zokukhishwa kwe-valve:
Izingxenye ezigcotshiwe ze-valve kufanele ziphathwe ngale nqubo elandelayo ngaphambi kokuhlanganiswa:
(1) Ngokwezidingo zokucubungula, ezinye izingxenye zamavalvu zidinga ukupholishwa ngaphandle kwama-machining burrs ngaphezulu;
(2) Nciphisa zonke izingxenye zevalvu;
(3) Ukunqunywa kanye nokwedlula kuzokwenziwa ngemva kokukhishwa (i-ejenti yokuhlanza ayinayo i-phosphorus);
(4) Ngemva kokukhetha nokudlula, hlambulula ngamanzi ahlanzekile ngaphandle kwezinsalela ze-reagent (lesi sinyathelo asivunyelwe izingxenye ze-carbon steel);
(5) Ingxenye yevalvu ngayinye iyosulwa yomiswe ngendwangu engalukiwe, futhi ingaphezulu lezingxenye ezifana noboya bezintambo ngeke zigcinwe, noma zomiswe ngenitrogen ehlanzekile;
(6) Sula ingxenye yevalvu ngayinye ngendwangu engalukiwe noma ngephepha lokuhlunga elinemba elinotshwala obuhlanzekile obuhlaziyayo kuze kungabi bikho umbala ongcolile.
2. Izidingo zokuhlanganisa ama-valve okwehlisa amafutha
Izingxenye ezihlanziwe ze-valve yokukhipha amafutha kufanele zivalwe futhi zigcinwe ukuze zifakwe. Izidingo zenqubo yokufaka zimi kanje:
(1) Indawo yokusebenzela yokufaka amavalvu okwehlisa amafutha kufanele ihlanzeke, noma indawo ehlanzekile yesikhashana (njengendwangu esanda kuthengwa enemibala enemibala noma ifilimu yepulasitiki) kufanele yakhiwe ukuze kuvinjwe uthuli ukuthi lungangeni ngesikhathi sokufakwa kwamavalvu.
(2) Abasebenzi bomhlangano kufanele bagqoke amaovaroli kakotini ahlanzekile, izigqoko zikakotini ezingavuzi lutho, zingavuzi izinwele, izicathulo ezihlanzekile namagilavu epulasitiki (okwehlisa amafutha).
(3) Amathuluzi okuhlanganisa kufanele asuswe amafutha futhi ahlanzwe ngaphambi kokuhlanganiswa kwevalvu yokugcoba ukuze kuqinisekiswe ukuhlanzeka.
Isikhathi sokuthumela: Nov-19-2021
