Chidziwitso chakugwiritsa ntchito, zinthu zazikuluzikulu ndi mawonekedwe amapangidwe a valve yoyang'ana wopindika

Onani valavuamatanthawuza valavu yomwe imatsegula ndi kutseka chivundikiro cha valve podalira kutuluka kwa sing'anga yokha kuti iteteze kubwerera kwa sing'anga, yomwe imadziwikanso kuti check valve, valve ya njira imodzi, reverse flow valve ndi back pressure valve.Valve yowunikira ndi valavu yodziwikiratu yomwe ntchito yake yayikulu ndikuletsa kubweza kwa sing'anga, kuzungulira kwapampopi ndi mota yoyendetsa, komanso kutulutsa kwapakati pa chidebe.Ma valve owunika atha kugwiritsidwanso ntchito pamizere yopereka makina othandizira pomwe kupanikizika kumatha kukwera pamwamba pa kukakamiza kwa dongosolo.

1. Kuyika valavu yawafa:

Valve yowunikira imayikidwa mu dongosolo la mapaipi, ndipo ntchito yake yayikulu ndikuletsa kubwereranso kwapakati.Valve yowunikira ndi valve yokhayo yomwe imatsegulidwa ndi kutsekedwa malinga ndi kupanikizika kwapakati.Valve yoyang'ana waferndi oyenera kuthamanga mwadzina PN1.0MPa ~ 42.0MPa, Class150 ~ 25000;m'mimba mwake mwadzina DN15 ~ 1200mm, NPS1/2~48;kutentha ntchito -196 ~ 540 ℃ pa mapaipi osiyanasiyana, ntchito kuteteza Medium backflow.Posankha zipangizo zosiyanasiyana, angagwiritsidwe ntchito zosiyanasiyana TV monga madzi, nthunzi, mafuta, asidi nitric, asidi acetic, wamphamvu oxidizing sing'anga ndi uric acid.

Chachiwiri, zinthu zazikulu za valve yowunikira: 

Pali chitsulo, carbon zitsulo, otsika kutentha zitsulo, wapawiri gawo zitsulo (F51/F55), titaniyamu aloyi, zotayidwa mkuwa, INCONEL, zitsulo zosapanga dzimbiri SS304, SS304L, SS316, SS316L, chrome molybdenum zitsulo, Monel (400/500), 20 # aloyi, Hastelloy ndi zipangizo zina zitsulo. 

3. Mapangidwe a valve yoyang'ana kabati:

1. Kutalika kwapangidwe ndi kochepa, ndipo kutalika kwake ndi 1/4 ~ 1/8 chabe ya valve flange check valve.

2. Kukula kwakung'ono ndi kulemera kwake, kulemera kwake ndi 1/4 ~ 1/20 chabe ya valve flange check valve 

3. Disiki ya valve imatseka mwamsanga ndipo kuthamanga kwa nyundo yamadzi kumakhala kochepa 

4. Mapaipi onse opingasa kapena mipope yowongoka angagwiritsidwe ntchito, yosavuta kukhazikitsa 

5. Njira yothamanga ndi yosalala ndipo kukana kwamadzimadzi kumakhala kochepa

6. Kuchita mwachidwi ndi ntchito yabwino yosindikiza

7. Kuyenda kwa dimba la valve ndi kochepa ndipo mphamvu yotseka ndiyochepa

8. Mapangidwe onse ndi ophweka komanso osakanikirana, ndipo mawonekedwewo ndi okongola

9. Moyo wautali wautumiki ndi ntchito yodalirika

Chachinayi, zolakwika zomwe zimachitika pa cheki valve ndi:

1. Chimbale cha valve chasweka

Kupsyinjika kwa sing'anga isanayambe ndi itatha valavu ya cheke ili pamtunda wapafupi komanso "saw" yogwirizana.Disiki ya valve nthawi zambiri imamenyedwa ndi mpando wa valve, ndipo diski ya valve yopangidwa ndi zinthu zina zowonongeka (monga chitsulo choponyedwa, mkuwa, ndi zina zotero) imasweka.Njira yodzitetezera ndiyo kugwiritsa ntchito valavu yowunikira yokhala ndi diski ngati ductile.

2. Kubwerera kwapakati

Malo osindikizira awonongeka;zonyansa zatsekeredwa.Mwa kukonza malo osindikizira ndi kuyeretsa zonyansa, kubwerera kumbuyo kungalephereke.