Isimiso Sokuqala
Ukucindezela kokuphumayo kungashintshwa njalo phakathi kwenani eliphakeme levalvu enciphisa ingcindezi kanye nenani eliphansi phakathi kwebanga elishiwo lamazinga okucindezela kwentwasahlobo ngaphandle kokuminyana noma ukudlidliza okungavamile;

Isimiso Sesibili
Akumele kube khona ukuvuza kwamavalvu okunciphisa ingcindezi avalwe ngokuthambile ngesikhathi esibekiwe; kuma-valve okunciphisa ingcindezi evalwe ngensimbi, ukuvuza akumele kube kukhulu kuno-0.5% wokugeleza okuphezulu;

Isimiso sesithathu
Ukuchezuka kwengcindezi yokuphuma kohlobo olusebenza ngokuqondile alukho ngaphezu kuka-20%, futhi uhlobo oluqhutshwa umshayeli alukho ngaphezu kuka-10%, lapho izinga lokuphuma kokuphuma lishintsha;

Isimiso Sesine
Ukuchezuka kwengcindezi yohlobo olusebenza ngokuqondile lapho umfutho we-inlet ushintsha ungekho ngaphezu kuka-10%, kanti ukuchezuka kohlobo olusetshenziswa umshayeli akungaphezu kuka-5%;

Isimiso sesihlanu
Ingcindezi engemuva kwevalvu yevalvu yokunciphisa ingcindezi kufanele ibe ngaphansi kokuphindwe izikhathi ezingu-0.5 kunokucindezela ngaphambi kwevalvu;

Isimiso sesithupha
Ivalvu yokunciphisa ingcindezi inezinhlelo eziningi ezibanzi kakhulu futhi ingasetshenziswa kusitimu, emoyeni ocindezelweyo, igesi yezimboni, amanzi, uwoyela, nezinye izinto eziningi eziwuketshezi zemidiya namapayipi. ukumelwa kokugeleza kwevolumu noma ukugeleza;

Isimiso Sesikhombisa
Umfutho ophansi, omncane, kanye nobubanzi obuphakathi nendawo yesitimu ilungele ukubhodla okuqondile okubamba i-valve yokwehlisa ingcindezi;

Isimiso sesishiyagalombili
Umfutho ophakathi nendawo nophansi, umoya ophakathi nendawo omncane nobubanzi obuncane kanye nemidiya yamanzi ifanele amavalvu okunciphisa ingcindezi efilimu emincane esebenza ngokuqondile;

Isimiso Sesishiyagalolunye
Isitimu, umoya, nemidiya yamanzi yengcindezi ehlukahlukene, amadayamitha, namazinga okushisa angasetshenziswa nevalve yokwehlisa umfutho wepiston. Ingasetshenziselwa izinhlobonhlobo zemithombo yezindaba ebolayo uma yakhiwe ngensimbi engagqwali ne-acid-resistant;

Isimiso seshumi
umfutho ophansi, umusi ophakathi nendawo noncane ububanzi, umoya, neminye imithombo yezindaba ilungele i-pilot bellows pressure yokunciphisa i-valve;

Isimiso Eleven
ingcindezi ephansi, ingcindezi ephakathi nendawo, isitimu noma amanzi anobubanzi obuncane naphakathi, nokunye ukuncishiswa kwengcindezi yefilimu yomshayeli ehambisana nemidiyai-valve;

Isimiso seshumi nambili
Ama-80% kuya ku-105% ashiwoinaniyengcindezi yokuthatha kufanele isetshenziselwe ukuphatha ukushintshashintsha kokungena kwe-valve yokunciphisa ingcindezi. Ukusebenza phakathi nezigaba zokuqala zokuwohloka kuzoba nomthelela uma kweqa leli banga;

Isimiso Seshumi Nantathu
Ngokuvamile, ingcindezi ngemuva kokunciphisa ingcindezii-valvei-valve kufanele ibe ngaphansi kwezikhathi ezingu-0.5 kunalokho okwakukhona ngaphambi kwe-valve;

Isimiso Seshumi Nane
Iziphethu zegiya zamavalvu ezehlisa ukucindezela ziwusizo kuphela phakathi kwebanga elithile lokucindezela kokuphumayo, futhi kufanele zishintshwe uma ububanzi budlulwa;
Isimiso 15
Ama-valve okunciphisa ingcindezi yohlobo lwe-pilot piston noma ama-valve okunciphisa ingcindezi yomshayeli avame ukusetshenziswa lapho izinga lokushisa lendawo yokusebenza liphezulu kakhulu;

Isimiso 16
Ngokuvamile kuyelulekwa ukuthi kusetshenziswe i-valve yokunciphisa ukucindezela kwefilimu encane-esebenza ngokuqondile noma i-valve yokunciphisa ukucindezela kwefilimu esetshenziswa umshayeli lapho okuphakathi kumoya noma amanzi (uketshezi);

Isimiso 17
Uma isitimu siphakathi, kufanele kukhethwe ivalvu yokunciphisa ingcindezi yepiston yomshayeli noma uhlobo lokubhodla komshayeli;

Isimiso 18
Ivalvu yokunciphisa ingcindezi ngokujwayelekile kufanele ibekwe epayipini elivundlile ukuze kube lula ukusetshenziswa, ukulungiswa, nokugcinwa.