Pali mitundu yambiri yamagetsi yamagetsi. Amasankhidwa bwanji

Malinga ndi zida zosindikiza, valavu yapadziko lonse lapansi imatha kugawidwa m'magulu awiri: valavu yosindikiza yosalala ndi chitsulo cholimba chotsekera; Malinga ndi dongosolo la chimbale akhoza kugawidwa m'magulu awiri: chimbale moyenera vavu lonse ndi chimbale yopanda vavu lonse; Malinga otaya njira mawonekedwe akhoza kugawidwa mu DC njira, Z njira, ngodya njira, DC njira ndi njira zitatu, etc.

Zofewa vavu lonse chisindikizo

Mu valavu yapadziko lonse lapansi, pofuna kuteteza zisindikizo zofewa kuti zisawonongeke ndi kutentha, chida chowunikira chimayikidwa patsogolo pa zisindikizo zofewa, zomwe zimapangidwa ndi chitsulo chosanja chachikulu. Pankhani yopanga mpweya, kapangidwe kameneka sikokwanira kuteteza moto wa zisindikizo zofewa. Pofuna kupewa valavu iyi, njira yolowera kunja kwa mpando wa valavu iyenera kukulitsidwa kuti mbali imodzi yolowera ilowe mthumba kuti mpweya wotentha usonkhanitse chisindikizo. Popanga malo osindikizira ofewa, ndikofunikira kuganizira kuti mupewe kusindikiza kosalala kuti kusatulutsidwe kapena chifukwa cha kusunthika kwapakati.

Zida zosindikizira zofewa zimaphatikizira zimbale zovekedwa ndi mphira, PTFE (kapena mipando ina yapulasitiki) kapena zimbale zachitsulo zokutidwa ndi zinthu zosapanga dzimbiri, komanso zomanga zadothi zolimba komanso zofewa zomata. Mtundu wama valve osindikizira ofewa nthawi zambiri umagwiritsidwa ntchito pama media a nthunzi ndi gasi, makamaka pamagetsi ochepera otsika amkuwa. Mphamvu yotseka yomwe valve yosindikiza yofewa ndiyochepa kwambiri, ndipo chimbale chosindikizira ndichosavuta kusintha. Malingana ngati mawonekedwe osindikizira a mpando wa valavu sawonongeka, kusinthidwa kwa chidindo chofewa cha disc ya valavu posachedwa kubwezeretsa magwiridwe antchito a valavu.

1. Chimbale yokutidwa ndi valavu yofewa ya globe yosindikiza

Ngakhale thupi la valavu limakhala ndi mawonekedwe ofanana ndi T, koma mu thumba la valavu yokhotakhota yoponyera ndikuwongolera kopingasa kwa mpando wa 45 °, zomwe zimapangitsa kuti valavu ikhale yolunjika, kuti ikwaniritse chimodzimodzi ndi thupi lolunjika la valavu, sing'anga kutaya mphamvu ndikwabwino; Ndipo chifukwa chogwiritsa ntchito chisindikizo chofewa cha mphira, magwiridwe antchito a valve ndiabwino.

Chipolopolo cha valavu chimapangidwa ndi chitsulo chosungunula ndipo chimbale cha valavu chimakutidwa ndi EPDM.

Valavu ili ndi izi:

Zosasamala;

ResistanceLow otaya kukana, fluidity wabwino;

Ntchito yosokoneza;

DesignDark ndodo kapangidwe (kukwezedwa mkati ulusi);

Ulusi wa tsinde mu thupi la valavu kunja;

RomKuchokera pakatikati pamagawo a valavu;

⑦EDD chisindikizo cha belu;

ProtectionDual kusindikiza chitetezo;

CoverChophimba chotsekera chili ndi ntchito yotsutsa-condensation nthawi yomweyo;

Thupi lamagetsi lokutidwa limatha kutetezedwa kwathunthu, limatha kupulumutsa mphamvu.

Vavu zimagwiritsa ntchito kwa 10 ~ 120C dongosolo madzi otentha, Kutentha

Dongosolo ndi zowongolera mpweya.

2. Chitsulo chosanjikizika chosakhazikika

Non-yachitsulo yovekera zofewa kusindikiza padziko valavu ndi wovekedwa ndi polytetrafluoroethylene ndi ma polima ena pa disc, omwe amagwiritsidwa ntchito kwambiri mu payipi yamagesi yamafuta amafuta amafuta.