Thevalavu ya gulugufe ya pulasitikiimalumikizidwa ku dongosolo la mapaipi m'njira zotsatirazi:

Kulumikiza matako olumikizira: M'mimba mwake wakunja kwa gawo lolumikizira valavu ndi wofanana ndi m'mimba mwake wakunja kwa chitoliro, ndipo mbali yomaliza ya gawo lolumikizira valavu ili moyang'anizana ndi mbali yomaliza ya chitoliro cholumikizira;

Kulumikizana kwa socket bonding: gawo lolumikizira valve lili mu mawonekedwe a socket, yomwe imalumikizidwa ku chitoliro;

Kulumikizana kwa soketi ya electrofusion: gawo lolumikizira valavu ndi mtundu wa soketi yokhala ndi waya wotenthetsera wamagetsi womwe umayikidwa m'mimba mwake wamkati, ndipo ndi kulumikizana kwa electrofusion ndi chitoliro;

Kulumikizana kwa soketi yotenthedwa ndi kusungunuka: gawo lolumikizira valavu lili ngati soketi, ndipo limalumikizidwa ndi chitolirocho ndi soketi yotenthedwa ndi kusungunuka;

Kulumikizana kwa soketi: Gawo lolumikizira valavu lili ngati soketi, lomwe limalumikizidwa ndi chitolirocho;

Kulumikiza mphete yotsekera rabara ya soketi: Gawo lolumikizira valavu ndi mtundu wa soketi yokhala ndi mphete yotsekera rabara mkati, yomwe imayikidwa ndi kulumikizidwa ndi chitoliro;

Kulumikizana kwa Flange: Gawo lolumikizira valavu lili ngati flange, lomwe limalumikizidwa ndi flange pa chitoliro;

Kulumikiza ulusi: Gawo lolumikizira valavu lili ngati ulusi, womwe umalumikizidwa ndi ulusi womwe uli pa chitoliro kapena cholumikizira chitoliro;

Kulumikizana kwamoyo: Gawo lolumikizira valavu ndi kulumikizana kwamoyo, komwe kumalumikizidwa ndimapaipi kapena zolumikizira.

Valavu ikhoza kukhala ndi njira zosiyanasiyana zolumikizira nthawi imodzi.

mfundo yogwirira ntchito:

Ubale pakati pa kutseguka kwa valavu ya gulugufe ya pulasitiki ndi kuchuluka kwa madzi umasintha molunjika. Ngati imagwiritsidwa ntchito kuwongolera kuyenda kwa madzi, makhalidwe ake a madzi amagwirizananso kwambiri ndi kukana kuyenda kwa madzi kwa mapaipi. Mwachitsanzo, mapaipi awiri amayikidwa okhala ndi m'mimba mwake ndi mawonekedwe ofanana a valavu, koma kuchuluka kwa kutaya kwa madzi a payipi ndi kosiyana, ndipo kuchuluka kwa madzi a valavu kudzakhala kosiyana kwambiri.

Ngati valavu ili pamalo pomwe mphamvu ya throttle imachepa kwambiri, kumbuyo kwa valavu kumakhala ndi vuto la cavitation, zomwe zingawononge valavu. Nthawi zambiri, imagwiritsidwa ntchito kunja kwa 15°.

Valavu ya pulasitiki ya gulugufe ikalowa pakati, mawonekedwe a khomo lopangidwa ndi thupi la valavu ndi mbali yakutsogolo ya mbale ya gulugufe amakhala pakati pa shaft ya valavu, ndipo mbali ziwirizo zimapangidwa kuti zigwirizane ndi momwe madzi akuyendera, ndipo mbali inayo imatsutsana ndi njira yoyendera. Chifukwa chake, mbali imodzi ya thupi la valavu ndi mbale ya valavu zimapanga malo otseguka ngati nozzle, ndipo mbali inayo imafanana ndi malo otseguka a throttle. Mbali ya nozzle imakhala ndi liwiro lothamanga kwambiri kuposa mbali ya throttle, ndipo kupanikizika koipa kumapangidwa pansi pa valavu ya mbali ya throttle. Zisindikizo za rabara nthawi zambiri zimagwa.

Ma valve a pulasitiki a gulugufe ndi ndodo za gulugufe alibe mphamvu yodzitsekera yokha. Kuti mbale ya gulugufe ikhazikike, chochepetsera zida za nyongolotsi chiyenera kuyikidwa pa ndodo ya valavu. Kugwiritsa ntchito chochepetsera zida za nyongolotsi sikungopangitsa mbale ya gulugufe kudzitsekera yokha ndikuyimitsa mbale ya gulugufe pamalo aliwonse, komanso kumawonjezera magwiridwe antchito a valavu.

Mphamvu yogwirira ntchito ya valavu ya pulasitiki ya gulugufe ili ndi mitundu yosiyanasiyana chifukwa cha njira zosiyanasiyana zotsegulira ndi kutsekera kwa valavu. Vavu ya gulugufe yopingasa, makamaka valavu yayikulu, chifukwa cha kuya kwa madzi, mphamvu yopangidwa ndi kusiyana pakati pa mitu yamadzi yapamwamba ndi yapansi ya shaft ya valavu singanyalanyazidwe. Kuphatikiza apo, chigongono chikayikidwa mbali yolowera ya valavu, kuyenda kwa bias kumapangidwa, ndipo mphamvu imawonjezeka. Vavu ikakhala pakati potseguka, njira yogwirira ntchito iyenera kudzitseka yokha chifukwa cha mphamvu yogwirira ntchito yamadzi.

Valavu ya gulugufe ya pulasitiki ili ndi kapangidwe kosavuta, yokhala ndi zigawo zochepa zokha, ndipo imasunga kugwiritsa ntchito zinthu; kukula kwake kochepa, kulemera kopepuka, kukula kwake kochepa, mphamvu yoyendetsera pang'ono, ntchito yosavuta komanso yachangu, imangofunika kuzungulira 90° kuti itsegule ndi kutseka mwachangu; ndipo Nthawi yomweyo, ili ndi ntchito yabwino yosinthira kayendedwe ka madzi ndi mawonekedwe otseka ndi kutseka. Mu gawo logwiritsira ntchito la caliber yayikulu ndi yapakati, kuthamanga kwapakati ndi kochepa, valavu ya gulugufe ndiye mawonekedwe akuluakulu a valavu. Valavu ya gulugufe ikatseguka kwathunthu, makulidwe a mbale ya gulugufe ndiye kukana kokha pamene sing'anga ikuyenda m'thupi la valavu, kotero kutsika kwa kuthamanga komwe kumapangidwa ndi valavu ndi kochepa, kotero imakhala ndi mawonekedwe abwino owongolera kayendedwe ka madzi. Valavu ya gulugufe ili ndi mitundu iwiri yotsekera: chisindikizo cholimba ndi chisindikizo chachitsulo. Valavu yotsekera yotanuka, mphete yotsekera imatha kuyikidwa pa thupi la valavu kapena kulumikizidwa kumphepete mwa mbale ya gulugufe. Mavavu okhala ndi zisindikizo zachitsulo nthawi zambiri amakhala ndi moyo wautali kuposa mavavu okhala ndi zisindikizo zotanuka, koma zimakhala zovuta kupeza chisindikizo chokwanira. Chisindikizo chachitsulo chimatha kusintha kutentha kwapamwamba kogwira ntchito, pomwe chisindikizo chotanuka chili ndi vuto lochepa chifukwa cha kutentha. Ngati valavu ya gulugufe ikufunika kugwiritsidwa ntchito ngati chowongolera kuyenda kwa madzi, chinthu chachikulu ndikusankha bwino kukula ndi mtundu wa valavu. Mfundo ya kapangidwe ka valavu ya gulugufe ndi yoyenera kwambiri popanga mavalavu akuluakulu. Mavalavu a gulugufe sagwiritsidwa ntchito kwambiri m'mafakitale ambiri monga mafuta, gasi, mankhwala, ndi madzi, komanso amagwiritsidwa ntchito m'makina ozizira amagetsi otentha. Mavalavu a gulugufe omwe amagwiritsidwa ntchito kwambiri amaphatikizapo mavalavu a gulugufe amtundu wa wafer ndi mavalavu a gulugufe amtundu wa flange. Mavalavu a gulugufe a Wafer amalumikizidwa pakati pa ma flange awiri a mapaipi okhala ndi ma stud bolts. Mavalavu a gulugufe opindika ali ndi ma flanges pa valavu. Ma flanges kumapeto onse a valavu amalumikizidwa ku ma flanges a mapaipi okhala ndi ma bolts. Mphamvu ya valavu imatanthauza kuthekera kwa valavu kupirira kupsinjika kwa sing'anga. Vavu ndi chinthu chamakina chomwe chimanyamula kupsinjika kwamkati, kotero iyenera kukhala ndi mphamvu zokwanira komanso kulimba kuti iwonetsetse kuti ikugwiritsidwa ntchito kwanthawi yayitali popanda kusweka kapena kusinthika.

Pogwiritsa ntchito mphira wopangidwa ndi anti-corrosion ndi polytetrafluoroethylene, magwiridwe antchito a ma valve a gulugufe amatha kukonzedwa bwino ndikukwaniritsa mikhalidwe yosiyanasiyana yogwirira ntchito. M'zaka khumi zapitazi, ma valve a gulugufe otsekeredwa ndi zitsulo apita patsogolo mwachangu. Pogwiritsa ntchito kukana kutentha kwambiri, kukana kutentha pang'ono, kukana dzimbiri mwamphamvu, kukana kukokoloka kwa nthaka, ndi zida zamphamvu kwambiri mu ma valve a gulugufe, ma valve a gulugufe otsekeredwa ndi zitsulo akhala akugwiritsidwa ntchito pa kutentha kwambiri, kutentha kochepa, komanso kukokoloka kwamphamvu. Yagwiritsidwa ntchito kwambiri pamikhalidwe ina yogwirira ntchito ndipo yasintha pang'ono valavu ya globe,valavu ya chipatandi valavu ya mpira.