Valavu

A valavundi chipangizo chowongolera cha mzere wamadzi. Ntchito yake yoyambira ndikuti mulumikizane ndi mphete ya mapaipi, sinthani kuwongolera kwa sing'anga, sinthani kupanikizika ndikuyenda kwa sing'anga, ndikuteteza masitepewo.

一.Gulu la Mavalves

Malinga ndi kugwiritsa ntchito ndipo ntchito ikhoza kugawidwa:

1. Monga: Chipata cha Chipata, valavu yamapadziko lapansi, valavu ya mpira, valavu ya Bulter, valavu valale, valavu ya diaphragm.

2. Chongani valavu: Pewani sing'anga pa mapaipi kuchokera kumayendedwe kumbuyo.

3. Valad Valit: Sinthani kuwongolera komwe kuli sing'anga, kugawa, kupatukana kapena kusakaniza sing'anga. Monga mafashoni ogawa, misampha ya Steam, ndi ma valves atatu.

4. Kuwongolera Valavu: Sinthani kukakamizidwa ndi kutuluka kwa sing'anga. Monga kukakamiza kuchepetsa Valve, Valve Valve, valavu yansalu.

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二. Magawo oyambira avalavu

1. Dongosolo la Nonil of Valve (DN).

2. Kupanikizika kwa nomwenal kwa valavu (PN).

3. Kukakamizidwa ndi kutentha kwa ma Valve: Pamene kutentha kwa valavu kumapitilira kutentha kwa kupanikizika kwa mwadzina, kupanikizika kwakukulu kuyenera kuchepetsedwa moyenerera.

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5.valavu:

Mafuta a mafakitale amagwiritsidwa ntchito ku mafuta, makampani opanga mankhwala, ma metallingorgy, magetsi amagetsi, mphamvu za nyukiliya ndi mafakitale ena. Atolankhani amadutsa paliponse (mpweya, nthunzi, ammonia, gasi la malasha, mafuta achilengedwe, etc.); Zakumwa (madzi, ma ammonia amadzimadzi, mafuta, ma ad, alkalis, ndi zina). Ena mwa iwo ali ngati nyama monga mfuti zamakina, ndipo zina ndizomwe zimawayendera.