Mu msonkhano wa Jinbin, mavavu agulugufe asanu okhala ndi mainchesi akulu awiri adawunikiridwa. Miyeso yawo ndi DN2200, ndipo matupi a valve amapangidwa ndi chitsulo cha ductile. Vavu iliyonse yagulugufe imakhala ndi cholumikizira chamagetsi. Pakali pano, awa angapovalavu butterflyadawunikiridwa ndikuvomerezedwa, ndipo akuyembekezera kulongedza ndi kutumizidwa.

Mosiyana ndi mavavu agulugufe achikhalidwe (pamene tsinde la agulugufe limagwirizana ndi pakati pa mbale ya gulugufe ndi thupi la valavu) kapena valavu imodzi yokha ya butterfly (pamene tsinde la agulugufe ndilokhalo lomwe limapatuka pakati pa mbale ya gulugufe), mavavu agulugufe omwe ali pakati pawo amakhala ndi mapangidwe awiri apakati a "valavu ya tsinde ya gulugufe + yomwe imapatutsa pakati pa gulugufe. thupi la valve".

Kapangidwe kameneka kamathandizira mbale yagulugufe kuti ingokumana ndi mpando wa valve ikatsala pang'ono kutseka pakutsegula ndi kutseka. Panthawi yonse ya sitiroko, mbale yagulugufe imasiyanitsidwa kwathunthu ndi mpando wa valve, kuchepetsa kwambiri kukangana ndi kuvala kwa malo osindikizira. Makamaka pazigawo zazikuluzikulu, zimatha kupewa "kukangana kolimba" pamtunda wosindikizira chifukwa cha kudzilemera kwa gulugufe kapena kupanikizika kwapakatikati, kumakulitsa kwambiri moyo wautumiki wa awiriwo osindikiza, omwe nthawi zambiri amakhala otalika kuposa 30% kuposa ma valve agulugufe achitsulo.

Chovala chagulugufe chamtundu waukulu wagulugufe wamagetsi amatengera kapangidwe kake. Ikatsegulidwa kwathunthu, mbale yagulugufe imakhala ndi malo ang'onoang'ono otsekereza kwa sing'anga ndi kochepera otsika otaya kukana, zomwe zingachepetse kutaya mphamvu kwa dongosolo la mapaipi. Kwa mapaipi oyenda kwambiri okhala ndi mainchesi a DN1000 kapena kupitilira apo (monga mizere yamadzi am'tawuni ndi makina amagetsi ozungulira madzi), kugwiritsa ntchito mphamvu kwa pampu kwapulumutsidwa kwambiri.

Zida zamtundu wa vavu zitha kusankhidwa kuchokera ku chitsulo cha ductile (chamadzi am'tauni), chitsulo cha kaboni (chamafuta aku mafakitale), kapena chitsulo chosapanga dzimbiri (cha corrosive media) kutengera mawonekedwe a sing'anga. Pamwamba pa gulugufe mbale akhoza kupopera-welded ndi wosanjikiza kuvala zosagwira (monga tungsten carbide), amene angathe kupirira kukokoloka kwa TV ndi pang'ono particles (monga mchenga ndi slag). Pakutumiza zamadzimadzi zomwe zili ndi zonyansa monga zimbudzi ndi phulusa, moyo wake wautumiki ndi 2 mpaka 3 kuposa ma valve wamba agulugufe.

M'mimba mwake waukuluvalavu yagulugufe yawiri eccentric, kupyolera mu luso lazomangamanga, layendetsa bwino kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake. Yakhala njira yabwino yothetsera mavavu apachipata ndi ma valve a mpira mumayendedwe othamanga kwambiri komanso ovuta m'matauni, mphamvu, kusungirako madzi, mafakitale ndi zina. Ndikoyenera makamaka kwa zochitika za nthawi yayitali zogwirira ntchito zomwe zimakhudzidwa ndi kugwiritsa ntchito mphamvu ndi ndalama zosamalira.