Magulu akulu ndi ntchito za valavu yosindikiza

Kusindikiza Valavu ndi gawo lofunikira la valavu yonse, cholinga chake chachikulu ndikupewa kutaya,valavuMpando wosindikizidwa umatchedwanso mphete yosindikiza, ndi bungwe lomwe limalumikizana mwachindunji ndi sing'anga mu bomba ndikulepheretsa sing'angayo. Valavu ikagwiritsidwa ntchito, pali media yosiyanasiyana payipi, monga madzi, mpweya, mafuta, ndi matchulidwe osiyanasiyana, ndi sing'anga osiyanasiyana.

Ma twiVnyamaZimakukumbutsani kuti zinthu za zisindikizo za valavu zitha kugawidwa m'magulu awiri, zilembo zachitsulo komanso zida zopanda zitsulo. Zisindikizo zachitsulo zomwe zimagwiritsidwa ntchito nthawi zambiri pamapaipi mokhazikika komanso kupanikizika, pomwe zisindikizo zachitsulo zimakhala ndi mapulogalamu ambiri ndipo itha kugwiritsidwa ntchito kutentha kwambiri. kukakamizidwa kwambiri.

1. Kupanga mphira

Nyama yopanga ili bwino kuposa mphira wachilengedwe malinga ndi mafuta, kutentherera kwa kutentha ndi kukana kutukuza. Nthawi zambiri, kutentha kogwiritsira ntchito kwa cynti ndi t≤150°C, mphira wachilengedwe ndi t≤60°C, ndipo rabani imagwiritsidwa ntchito pokambirana ndi zipinda zadziko lapansi, maval a pachipata, mavavu a meaphragm, ma valve a ma valve, ma valves ena okhala ndi kupanikizika kwa nomwel≤1MPA.

2. Naylon

Nylon ali ndi mawonekedwe a chiwonetsero chaching'ono komanso kukana bwino. Nylon amagwiritsidwa ntchito kwambiri kwa ma valve a mpira ndi ma valves a Glober ndi kutentha t≤90°C ndi mwanyimbo pn≤32MPA.

3. Polytetrafluorothylene

PTFF amagwiritsidwa ntchito kwambiri pa ma valves a Globe, ma valve a pachipata, ma valve a mpira, etc. ndi kutentha T≤232°C ndi ma pn a nomwenal≤6.4MPA.

4. Ikani chitsulo

Chitsulo chimagwiritsidwa ntchito ngati ma valve a pachipata, ma valves a globe, zigwa, etc. pa kutentha T≤100°C, mwanminal pn≤1.6mka, gasi ndi mafuta.

5. BOBBITT SHOY

BOBBITT Stooy imagwiritsidwa ntchito kwa Ammonia Gvel Valve ndi kutentha T-70 ~ 150℃ndi mwanyimbo pn≤2.5MPA.

6. Copper Cloy

Zipangizo zomwe zimagwiritsidwa ntchito kawirikawiri kwa owongolera zamkuwa ndi 6-6-3 tin tin tin bronze ndi 58-2-2 mkungudza. Copperper Smoy ili ndi vuto kukana ndipo ndioyenera madzi ndi nthunzi ndi kutentha t≤200℃ndi mwanyimbo pn≤1.6mka. Nthawi zambiri zimagwiritsidwa ntchito pachipata cha pachipata, mavavu adziko lapansi, cheke cheke, ma valve stug, etc.

7. Chitsulo chosapanga dzimbiri

Magawo omwe amagwiritsidwa ntchito kwambiri a chromium osapanga dzimbiri ndi 2cr13 ndi 3cr13, omwe adazimitsidwa komanso kupsinjika, ndikutsutsa zabwino. Imagwiritsidwa ntchito nthawi zambiri pamadzi am'madzi, nthunzi ndi petroleum ndi kutentha t≤450℃ndi mwanyimbo pn≤32MPA.

8. Chrome-nickel-titanium dambo wopanda dzimbiri

Kalasi yogwiritsidwa ntchito kawirikawiri ya chromium-nickel-titaniyam dzingu osapanga dzimbiri ndi 1cr18Nni9Ti, zomwe zimatsutsana ndi kutukwana komanso kukana kutentha. Ndioyenera ma Steam ndi makanema ena ndi kutentha T≤600°C ndi ma pn a nomwenal≤6.4MPA, ndipo imagwiritsidwa ntchito ndi ma valvel a Globha, etc.

9. Nitring chitsulo

Gawo lomwe limagwiritsidwa ntchito kawirikawiri pa chitsulo chokhazikika ndi 38crmoala, omwe ali ndi vuto labwino komanso kukana zikanda pambuyo pakulandira chithandizo. Imagwiritsidwa ntchito nthawi zambiri pachipata champhamvu champhamvu ndi kutentha t≤540℃ndi mwanyimbo pn≤10MPA.

10. Kusuntha

Kutulutsa mwachindunji kumathandizanso malo osindikizira kuchokera ku zinthu za valavu kapena thupi la disco, kenako limachita mankhwala osokoneza bongo. Malo opirira ali ndi vuto kukana. Pa zophulika magetsi.

Nyama ikagwiritsidwa ntchito, zinthu zomwe zikuyenera kukhala ndi chidwi ndi izi:

1. Ntchito zokopa zivundikiro ziyenera kukonzedwa kuti zitsimikizidwe.

2. Onani ngati malo osindikizira a valavu amavala, ndikukonza kapena m'malo mwake.