Izici zomkhiqizo:
1. Isihlalo esiphansi esiphansi, akukho ukunqwabelana kokungcola, kwenza uphawu luthembeke kakhulu.
2. I-valve disc ihlanganiswe ne-NBR iyonke. Izingxenye zangaphakathi ze-valve zenziwe ngensimbi engagqwali engagqwali kanye ne-alloy yethusi, engasetshenziselwa uhlelo lokukhucululwa kwendle ukuze luvumelane nezimo zokusebenza ezinzima.
3. Usayizi omncane, isisindo esincane, kulula ukuyifaka nokugcina
4. Isiqu se-valve sivalwe ngezindandatho ezintathu ze-O, okunciphisa kakhulu ukumelana nokungqubuzana komshini futhi kwenza ukushintshwa kukhanye futhi kungabi namanzi.