Ho notlela li-valve tsa heke ho hana ho sotha le ho koahela mofeng ho u thusa ho koala valve ea heke le ho e boloka e koetsoe.Ho tloha sesebelisoa sa ho notlela li-valve tsa universal gate ho isa ho lisebelisoa tsa boholo bo khethehileng, lihlahisoa tsa rona li tla netefatsa hore li-valve tsa hau li bolokehile.Li entsoe ka polasetiki ea boenjiniere e tšoarellang ea ABS 'me li kenyelletsa mangolo a lemosang ka Sechaena le Senyesemane.