Izici
1.Idizayini egcwele ngokugcwele iqeda ngempumelelo ukwehla komfutho kanye nama-eddy currents futhi ibambezela izinhlayiya eziqinile oketshezini.
ukukhishwa kwama-valve;
2.Umklamo oyingqayizivele wokubeka uphawu, ukuze i-torque yokushintsha inciphe kakhulu;
3.Izinsimbi zensimbi zenziwe phakathi kwebhonethi nomzimba wevalvu, ipuleti levalvu kanye neringi yesihlalo sevalvu;
I-4.Metal sealing surface spray (imbondela) welding carbide enosimende, enokumelana okuhle nokugqokwa, ukumelana nokugqwala;
I-5.Indandatho yesihlalo ilungiswa yi-fixed plate ukuze kugcinwe ukuzinza okuhle;
6.Isiqu sifakwe indlela yokuvala ehlanekezelwe ukuze kube lula ukushintshwa kwendandatho yokuvala isiqu ngomfutho.