Izici zomkhiqizo
1. Isakhiwo esihlangene, ukuklama okunengqondo, ukuqina okuhle kwe-valve, indawo ebushelelezi kanye ne-coefficient yokumelana nokugeleza okuncane.
2. Indawo yokubeka uphawu yenziwe ngensimbi engagqwali kanye ne-carbide enosimende enempilo ende yesevisi.
3. Ipuleti yokupakisha ye-graphite eguquguqukayo, ukubekwa uphawu okuthembekile, ukusebenza okulula nokuguquguqukayo.
4. Izindlela zokushayela zifaka amafomu okwenziwa ngesandla, kagesi, omoya, amagiya kanye namafomu esakhiwo; i-valve ye-elastic wedge eyodwa, ipuleti le-valve ye-wedge eqinile kanye nohlobo lwesango eliphindwe kabili.
5. Isetshenziswa kakhulu emikhiqizweni kawoyela, amapayipi amanzi kanye nesitimu ka-petroleum, imboni yamakhemikhali kanye nezitshalo zamandla ashisayo njengemishini yokuqala noma yokuvala yokuxhuma noma yokusika i-medium kumapayipi.