Mfundo Yoyamba
Kuthamanga kotuluka kumatha kusinthidwa nthawi zonse pakati pa mtengo wochepetsetsa wa valve yochepetsera komanso mtengo wocheperako mkati mwamitundu yodziwika ya kuthamanga kwa masika popanda kugwedezeka kapena kugwedezeka kwachilendo;

Mfundo Yachiwiri
Sipayenera kukhala kutayikira kwa mavavu ochepetsera otsekedwa otsekedwa mkati mwa nthawi yomwe wapatsidwa;pazitsulo zotsekedwa ndizitsulo zochepetsera ma valve, kutayikira sikuyenera kukhala kwakukulu kuposa 0.5% ya kutuluka kwakukulu;

Mfundo yachitatu
Kupatuka kwamtundu wamtundu wochita molunjika sikupitilira 20%, ndipo mtundu woyendetsedwa ndi woyendetsa siwopitilira 10%, pomwe kuchuluka kwa kutuluka kumasintha;

Mfundo Yachinayi
Kupatuka kwamtundu wamtundu wachindunji pamene mphamvu yolowera ikusintha sikuposa 10%, pomwe kupatuka kwa mtundu woyendetsa ndege sikuposa 5%;

Mfundo yachisanu
Kupanikizika kumbuyo kwa vavu yochepetsera valavu kuyenera kukhala kosachepera 0.5 nthawi yamagetsi isanachitike;

Mfundo 6
Valavu yochepetsera kupanikizika imakhala ndi ntchito zosiyanasiyana ndipo imatha kugwiritsidwa ntchito pa nthunzi, mpweya woponderezedwa, gasi wamakampani, madzi, mafuta, ndi zida zina zambiri zamadzimadzi ndi mapaipi.chiwonetsero cha kuthamanga kwa voliyumu kapena kuyenda;

Mfundo Yachisanu ndi chiwiri
Low kuthamanga, ang'onoang'ono, ndi sing'anga awiri m'mimba mwake nthunzi sing'anga ndi oyenera mvuvu molunjika akuchita kuthamanga kutsitsa valavu;

Mfundo yachisanu ndi chitatu
Kuthamanga kwapakati ndi kutsika, mpweya wapakati ndi waung'ono wamkati ndi wamadzi ndi woyenerera ma valve ochepetsera mafilimu ochepetsetsa;

Mfundo yachisanu ndi chinayi
Mpweya, mpweya, ndi madzi amtundu wosiyanasiyana, ma diameter, ndi kutentha angagwiritsidwe ntchito ndi valavu yochepetsera piston.Itha kugwiritsidwa ntchito pazinthu zosiyanasiyana zowononga ngati imamangidwa ndi chitsulo chosapanga dzimbiri cha asidi;

Mfundo khumi
kutsika kwapansi, sing'anga ndi m'mimba mwake pang'ono nthunzi, mpweya, ndi zoulutsira zina ndizoyenera valavu yochepetsera valavu yoyendetsa mvuvu;

Mfundo khumi ndi chimodzi
kutsika kwapang'onopang'ono, kupanikizika kwapakatikati, nthunzi yaying'ono ndi yapakatikati yamadzi kapena madzi, ndi kuchepetsa kupanikizika kwa mafilimu oyendetsa ndege ogwirizana ndi mediavalavu;

Mfundo khumi ndi ziwiri
80% mpaka 105% ya zomwe zatchulidwamtengoKuthamanga kwa kulowetsedwa kuyenera kugwiritsidwa ntchito poyang'anira kusinthasintha kwa kuthamanga kwa valve yochepetsera kuthamanga.Kuchita pazigawo zoyamba za decompression kudzakhudzidwa ngati kupitirira izi;

Mfundo Yakhumi ndi Zitatu
Childs, kupsyinjika kumbuyo kuthamanga-kuchepetsavalavuvalavu iyenera kukhala yosachepera 0,5 nthawi yomwe inalipo pamaso pa valve;

Mfundo Yakhumi ndi Inayi
Akasupe amagetsi otsitsa valavu amangothandiza mkati mwamtundu wina wa kukakamiza kotulutsa, ndipo ayenera kusinthidwa ngati kuchuluka kwapitilira;
Mfundo 15
Mavavu ochepetsera pisitoni ya mtundu wa piloti kapena mavavu oyendetsa mavuvu amtundu wochepetsera mphamvu amagwiritsidwa ntchito pomwe kutentha kwa sing'anga kumakhala kokwera kwambiri;

Mfundo 16
Kawirikawiri amalangizidwa kuti agwiritse ntchito valavu yochepetsera filimu yowonda kwambiri kapena yoyendetsa ndege yochepetsera filimu yochepetsetsa pamene sing'anga ndi mpweya kapena madzi (zamadzimadzi);

Mfundo 17
Pamene nthunzi ndi sing'anga, valavu yochepetsera kupanikizika ya pistoni yoyendetsa kapena mtundu wa mvuvu woyendetsa uyenera kusankhidwa;

Mfundo 18
Valavu yochepetsera kupanikizika nthawi zambiri iyenera kuyikidwa papaipi yopingasa kuti ikhale yosavuta kugwiritsa ntchito, kusintha, ndi kukonza.