E entsoe ka ho nepahala le ho tšoarella kelellong, ea ronali-valve tse se nang lipeipie fana ka tshebetso e ntle le botshepehi. Hore na o nkela di-valve tse tsofetseng sebaka kapa o ntlafatsa ho ntlafatsa tshebetso ya koloi ya hao, di-valve tsa rona tsa tshepe di etseditswe ho fihlela le ho feta maemo a indasteri. E nngwe ya dinyehelo tsa rona tse tsebahalang keclamp ka har'a li-valve tsa tšepe. Li-valve tsena li fana ka tharollo e sireletsehileng le e sebetsang ea ho koala mabili a koloi ea hau. Ka kaho ea tsona e tiileng le theknoloji e tsoetseng pele ea ho koala, li-valve tsa rona tsa tšepe tse kentsoeng ka har'a clamp li netefatsa ho koaloa ho tiileng, li thibela ho lutla ha moea le ho boloka khatello e nepahetseng ea mabili. E etselitsoe ho kenngoa habonolo, li-valve tsena li fana ka boiketlo le khotso ea kelello. Ntle le li-valve tsa tšepe tse kentsoeng ka har'a clamp, re boetse re fana ka e kholomefuta e fapaneng ea li-valve tsa mabili a literaka. Li entsoe ho lekana mefuta le mehlala e fapaneng ea likoloi, li-valve tsa rona li etselitsoe ho fihlela litlhoko tse khethehileng tsa likoloi tsa bapalami le literaka tse bobebe. Ka boleng ba tsona bo phahameng le ts'ebetso, li-valve tsa rona tsa Koloi ea Baeti le Literaka tse Nyenyane li fana ka ts'ebetso e tšepahalang ea ho phahama le ho theoha ha phallo ea moea, e tlatsetsang ts'ebetsong e ntle ea mabili le ho phela nako e telele.