Mu dongosolo la madzi aliwonse, Kuchokera ku zovuta zovuta mafakitale mpaka tsiku ndi tsiku, Ma Valves onse ndi osinthika. Komabe, Zigwa izi zikaonekera kwazomwe zimachitika pakapita nthawi, Trussion yakhala nambala yomwe ikuwopseza. Choncho, Kusankha moyenera ndikugwiritsa ntchito a valavu yolimbana si lingaliro laukadaulo chabe koma ndalama yofunika kwambiri, ubwino, ndi kukhala ndi moyo wanu wonse.

Lolani BMAG imakutengerani mwadongosolo mwadongosolo lofunikira posankha mavavu okhalamo, ndikupereka kusokonekera mwatsatanetsatane kwa mawonekedwe, chipatso, kuzunguzika, ndi ntchito zamakampani Brass Corlus-Callves, Bronze Comoshuion, ndi Masamba a pulasitiki. Kukuthandizani kupanga chisankho chodziwikiratu pakati pa zosankha zambiri.

1. Kodi valavu ya valavu ndi chifukwa chiyani ndizovuta?

Valve Colrosion ndi kuwonongeka kwa zinthu za valavu chifukwa cha zochita zamankhwala ndi malo ake (E.g., Madzimu apakati, mlengalenga wakunja). Kuwonongeka kumeneku kumatenga mitundu yambiri, ndi kuwamvetsetsa ndiye gawo loyamba lomwe mwasankha.

Mitundu yodziwika bwino ya Valve Collosion

• Yunifolomu: Trussion imachitika ngakhale kudutsa kwathunthu kwa valavu yodziwikiratu. Kuchuluka kwa valavu ikhoza kuwonedwa ndikuloseredwa, Zimatha kubweretsa kupatulira kwa khoma lamphamvu pakapita nthawi, Kuchepetsa mphamvu zake zopanikizika.
• Colvanic: Zimachitika kawiri ngati zitsulo ziwiri zokhala ndi zolumikizana pamaso pa electrolyte (Monga madzi). Chitsulo chopanda chonde chimakhala choden ndi ma codes pamlingo wothamanga. Uku ndiko kudera nkhawa kovuta pakusakaniza mavesi ndi mapaipi a zinthu zosiyanasiyana zitsulo m'dongosolo.
• Kugwedeza: Mawonekedwe ocheperako omwe amapanga mabowo ang'onoang'ono kapena “maenje” mchitsulo. Imabisika komanso yowononga kwambiri; Sizingapezeke osasamala, ndikuyambitsa mandiyeni.
• Crevice Corrosion: Chifukwa cha kusiyana pakati pa oxygen ndende mkati ndi kunja kwa chipiriro, Zochita za electrochemical zimayendetsedwa ndi EXYGEN Exygen Schoor (Kusinthanitsa kosiyanasiyana) zimachitika. Izi zimathandizira kusungunuka kwa zitsulo zachitsulo, zomwe zimachita ndi ma iyo (monga chloride ions) kuyambitsa chimbudzi.
• Dika: Njira yomwe ili Mavavu a Brass. M'mikhalidwe yokhala ndi chloride anyezi, Zizindikiro zamimba, Kusiya kuseka koroma ndi brity, zomwe zimachepetsa mphamvu ya valavu yamakina.

Zotsatira Zamphamvu za Kuchuluka

• Kusintha kwa dongosolo: Kumabweretsa kuwonongeka kwa sing'anga mu bomba kapena, woipirako, kumasulidwa kwa zoopsa kapena zoopsa, kuyambitsa zochitika zotetezeka komanso kuwonongeka kwa chilengedwe.
• Kulephera kwa Ntchito: Zovala zotsekemera zimatha kuvala valavu, Kuchulukitsa Kukula ndi Kuchepetsa Velocity, ngakhale kutsegula kapena kutseka bwino, ndi kusokoneza dongosolo lonse la dongosolo.
• Kuchepetsa moyo: Zisindikizo za Valve wa valavu, Kuchulukitsa pafupipafupi ndi zolipiritsa.
• Chiwopsezo cha Chitetezo: Kuchulukitsa kwa zovuta zomwe zingayambitse mavuto kungayambitse zotsatira zoyipa, Mphamvu yamphamvu yopanikizika kwambiri.

Kuzindikira zoopsazi kumamveketsa bwino chifukwa chosankha a valavu yolimbana zomwe zikugwirizana ndi zomwe mukugwiritsa ntchito ndizofunikira kwambiri.

2. Zofunikira posankha valavu yolimbana

Musanasankhe valavu yoyenera, Muyenera kuwunika malo osungirako malo omwe akukumana nawo. Nazi zomwe zinali zinayi zofunika kuziganizira:

1. Madzimadzi: Izi ndiye chinthu chachikulu kudziwa zinthuzo.
   • Kuphatikizika kwa mankhwala: Kodi sing'anga ya asidi, nsomba, mchere, organic solvent, kapena mankhwala a petroleum? Kodi ndi chiyani?? Mwachitsanzo, PVC ili ndi kukana kwabwino kwa acids ambiri ndi zitsulo koma osati ma sover.
   • Kutentha: Nthawi zambiri, Kutentha kwambiri kumatha kuthamangitsa mitengo yamvula komanso imakhudza makina a zinthuzo. Mwachitsanzo, CPVC ili ndi kutentha kwambiri kuposa pvc, pomwe zitsulo zachitsulo zimatha kuthana ndi kutentha kwambiri kuposa mavuvu apulasitiki.
   • Kukakamiza: Zipangizo ziyenera kuthana ndi zovuta zomwe zikuyenda bwino. Mavvuli apulasitiki nthawi zambiri amakhala ndi mabatani otsika kuposa ma valve achitsulo. Zigwa zikayesedwa pafakitale, Amayesedwa nthawi zambiri 1.5 nthawi yomwe akufuna kutsimikizika kuti muwonetsetse kutero.
   • Kuthamanga kwamphamvu ndi Abrasies: Mitengo Yokwera Kwambiri kapena Kukhalapo kwa tinthu tokhazikika mu sing'anga kungayambitse kukokoloka, Kufuna kuvala zinthu zosagonjetseka monga bronze kapena mtundu wapadera.
2. Zochitika Zachilengedwe:
   • Malo akunja pomwe valavu imayikidwanso ndiyofunika. Mwachitsanzo, Mavavu okhazikitsidwa m'magawo a m'mphepete mwa nyanja kapena pafupi ndi mbewu ya mankhwala amafunika kukana utsi wa mchere kapena mipweya yopopera, kupanga Bronze Comoshuion Kusankha bwino pazinthu izi. Kugwiritsa Ntchito Panja, Kutsutsa kwa uvoko kumakuthandizaninso; Ma Valsics ena amafunikira kuwonjezera kwa okhazikika a UV.
3. Mavesi Makina Othandizira:
   • Kupitilira kutsutsana, valavu iyenera kukhala ndi mphamvu yokwanira, mphamvu, ndi kuvala kukana kupirira totque, Kupsinjika Papaipi, ndi kugwedezeka. Makunja a Zitsulo ndiabwino kuposa mavu apulasitiki pamapulogalamuwa.
4. Ma Valves ndi moyo ndi moyo:
   • Mtengo wogula ndi wofunika kwambiri, Koma siziyenera kukhala ndekha. Muyenera kuyeza mtengo wautali wa valavu, kuphatikiza ndi moyo womwe wayembekezeredwa, pafupipafupi pafupipafupi, ndipo ndalama zomwe zingatheke. Nthawi zina, okwera mtengo pang'ono, Valavu yapamwamba kwambiri idzaperekanso kubweza kwakukulu pa Investment kudzera kudalirika komanso kukonza kotsika.

3. Kusanthula kwakuya kwa zida zamagetsi zosagonjetsedwa

Ena, Tidzayang'ana kwambiri pazinthu zosalimba kwambiri, chitsulo, ndi pulasitiki - kusanthula mwatsatanetsatane.

1. Brass Corlus-Callves

Brass ndiolonga zamkuwa ndi zinc ndipo ndi imodzi mwazinthu zodziwika bwino kwambiri, makamaka m'malo ogwiritsira ntchito ndi malonda.

• Kutsutsa: Amakhala ndi kukana kwabwino kwa madzi osalowerera ndale, Zosowa zopanda mafuta, ndi mpweya. Kufooka kwake kwakukulu ndi kukana kwa Ammonia, acetylene, ndi acid ambiri. Zimakhalanso zowoneka bwino m'madzi ena.
• Ubwino: Mtengo wotsika, mphamvu yayikulu, Makina abwino, ndi mphamvu yokwanira pamapulogalamu ambiri.
• Zovuta: Kuchepetsa malire ochepetsa mankhwala ndi chiopsezo cha dezzatization.

Oyimira Brass Stades

• C36000 (Mvula yodula): Chimodzi mwazinthu zodziwika bwino za rod, Wodziwika chifukwa cha makina ake abwino, Kupanga kukhala koyenera kwa zolimbitsa thupi ndi valavu zimayambira. Komabe, Kukana kwake kuchuluka kwake, ndipo osavomerezeka kwa madzi ofewetsa pomwe dedzotiction ndi chiopsezo.
• C27450 (Kuletsa Kuletsa / Mbiri Yabwino Kwambiri): Makina opangidwa ndi madzi okwanira. Izi zimapangidwa (Nthawi zambiri ndi zowonjezera zazing'ono za arsenic, Zkosphorous, kapena anticy) Kuletsa kuwonongeka. Zimagwirizana ndi malamulo aulere, Kupanga chisankho chabwino kwa mavavu ndi zolimba polumikizana ndi madzi ankhanza.

Zakuthupi	Alloy ayi.	C%	Pb%	Njoka	ZN%	Fe%	P%	Mkati	Nsomba
Mkuwa	Cw511l	61-63	0.2	0.1	Mtovu.	0.1	–	0.1	0.05
Mkuwa	Cw602n	61-63	1.7-2.8	0.1	Mtovu.	0.1	–	0.3	0.05
Mkuwa	Cw611n	57-60	0.8-1.6	0.3	Mtovu.	0.3	–	0.3	0.05
Mkuwa	Cw614n	57-59	2.5-3.5	0.3	Mtovu.	0.3	–	0.3	0.05
Mkuwa	Mtengo wa CW617N	57-59	1.6-2.5	0.3	Mtovu.	0.3	–	0.1	0.05
Mkuwa	Cz 132	60-63	1.7-2.8	0.2	Mtovu.	0.1	–	–	–
Mkuwa	C46500	59-62	0.2	0.5-1	Mtovu.	0.1	–	–	–

2. Bronze Comoshuion

Bronze kwenikweni makamaka ya mkuwa ndi tini koma amathanso kukhala ndi zinthu zina. Kutsutsa kwake kwa kuphukira nthawi zambiri kumakhala kopambana ndi kwa mkuwa.

• Kutsutsa: Kukhala ndi chitsutsano chabwino kwa madzi am'madzi ndi mchere, Kupeza dzina la dzina “zitsulo zam'madzi.” Imakhala ndi mitundu yosiyanasiyana yamankhwala kuposa yamkuwa ndipo ili ndi kukana bwino.
• Ubwino: Kukana Kukana Kwambiri Kumadzi am'madzi, mphamvu yayikulu, ndi kuvala kukana kwamkuwa.
• Zovuta: Mtengo wa Bronze ndiwokwera kuposa mkuwa.

Oyimira Bronze Maphunziro

• C95400 (Aluminimum bronze): Chiwonetsero chachikulu chokhala ndi aluminiyamu, chitsulo, ndi nickel. Amapereka kukana mwanzeru osati kwa madzi am'madzi okha komanso kukokoloka-korossion ndi cavitation m'madera ambiri acidic. Chifukwa champhamvu kwambiri komanso kuvala kukana, Nthawi zambiri imagwiritsidwa ntchito m'matanthwe olemera, Mapulogalamu osokoneza bongo a Marine ndi Mapampu a Mankhwala.
• C93200 (Kutsogoleredwa cronze / SAE 660): Amadziwikanso ngati kubera mkuwa. Aloye uyu ali ndi zida zabwino kwambiri zotsutsana ndi zosokoneza. Ngakhale amagwiritsidwa ntchito ngati mavalidwe otsika kwambiri ndi ma racents, Makamaka pamapulogalamu ofunikira mafuta ena. Kukana kwawo ndi chilungamo, yoyenera madzi onse, mafuta, Makina a Air.

Zakuthupi	Alloy ayi.	C%	Pb%	Njoka	ZN%	Fe%	P%	Mkati	Nsomba
Chitsulo	C83600	84-86	4.0-6.0	4.0-6.0	4.0-6.0	0.3	0.05	1	0.005
Chitsulo	C89325	84-88	0.1	9.00-11	1	0.15	0.1	1	0.005
Chitsulo	C89831	87-91	0.1	2.70-3.7	2.00-4	0.3	0.05	1	0.005
Chitsulo	C89833	86-91	0.09	4.00-6	2.00-6	0.3	0.05	1	0.005
Chitsulo	C89835	85-89	0.09	6.00-7.5	2.00-4	0.2	0.1	1	0.005
Chitsulo	C89844	83-86	0.2	3.00-5	7.00-10	0.3	0.05	1	0.005
Chitsulo	C90300	86-89	0.3	7.50-9	3.00-5	0.2	0.05	1	0.005
Chitsulo	C90800	85-89	0.25	11.00-13	0.25	0.15	0.3	0.5	0.005
Chitsulo	C90810	Mtovu.	0.25	11.00-13	0.3	0.15	0.15-0.8	0.5	0.005

3. Masamba a pulasitiki

Ndi chitukuko cha zinthu zamankhwala sayansi, Makumi apulasitiki atulutsa malo ofunikira kwambiri m'makampani amakono chifukwa cha kukana kwawo.

• Zida wamba ndi mawonekedwe:
  • Makunja a PVC(Polyvinyl chloride): Zida zofala kwambiri zapulasitiki. Ili ndi kukana kwabwino kwa madzi ndi ma acid osiyanasiyana, nsomba, ndi mchere. Ndizotsika mtengo koma zimakhala ndi kutentha kochepa komanso kuthamanga (nthawi zambiri pansi pa 60 ° C / 140° F).
  • CPVC Mavavu(Chlorinated polyvinyl chloride): A “Kukwezedwa” mtundu wa pvc. Njira ya chlorina imapereka malire otentha kwambiri (mpaka 90 ° C / 194° F) Ngakhale kukhalabe ndi vuto lalikulu la mankhwala.
  • Mas Mavavu(Polypropylene): Zojambula zopepuka zokhala ndi malingaliro abwino pamawonekedwe a acid, nsomba, ndi okhazikika.
  • Pvdf Mavavu(Polyvinylidene fluoride): A “Mfumu ya mapiritsi.” Imaperekanso kugwiritsa ntchito mankhwala osokoneza bongo ambiri a avoric komanso organic, kuphatikizapo mawu (Monga chlorine ndi bromine) ndi olimba acid. Amakhalanso ndi chiyero chachikulu, mphamvu yayikulu, ndi kutentha kwambiri (mpaka 140 ° C / 284° F), Koma ndi njira yokwera mtengo kwambiri.
• Ubwino: Kukaniza kwamphamvu kwa mankhwala, Chitetezo cha Gelvanic Corrosion, kopepuka, ndi mtengo wokwera (makamaka pvc ndi pp).
• Zovuta: Mphamvu yotsika, kukakamiza, ndi ma ratings kutentha kuposa ma valve achitsulo; otanganidwa ndi kugwera pansi pamavuto a nthawi yayitali.

4. Chiwonetsero cha Zinthu: Brass vs. Bronze vs. Cha pulasitiki

Gome ili likufotokozera mwachidule za mitundu itatu yazinthu zitatu za fanizo lachindunji:

Kaonekedwe	Brass Corlus-Calve	Bronze Corlus-Calve	Valavu ya pulasitiki yolimbana ndi pulasitiki (E.g., PVC / PVDF)
Kutsutsa koyambirira	Madzi osalowerera ndale, mafuta, mafuta	Madzi am'nyanja, Tsegulani mchere, Mankhwala osiyanasiyana	Acid acid & malo, Mankhwala osiyanasiyana (Pvdf > Pvc)
Kutentha kwa kutentha	Wapakati	Wapakatikati	Pansi (Pvc) / Wammwamba kwambiri (Pvdf)
Kukakamiza	Abwino	Chabwino	Chepetsa (amachepetsa kutentha)
Mphamvu yamakina	Abwino	Chabwino	Chepetsa
Ika mtengo	Pansi	Wapakati	Pansi (Pvc) / M'mwamba (Pvdf)
Ntchito Zoyambira	Malo okhala, Hvac	Maulamuliro a Marine, Chitetezo cha Moto, wogwira mu kampani	Kupanga mankhwala, Chithandizo cha Madzi, Mapulogalamu apamwamba kwambiri

5. Mapeto: Kupanga Vesi Valve Inshuwaransi

Kusankha valavu yolimbana ndi vuto sikuti ndi njira yowongoka; Palibe chilichonse chapadziko lonse. Koma, Mukasanthula momveka bwino zonse ndi zosowa zake, mudzatha kusankha zinthu zokwanira za valavu yomwe ili.

• Kwa nyumba zokhala ndi nyumba zonyamula katundu, mtundu wapamwamba, Otsogolera valavu ya mkuwa (Monga kalasi ya DZR C27450) nthawi zambiri ndi chisankho chabwino kwambiri, Mtengo Wovuta ndi Magwiridwe.
• Ntchito yanu ikakhudza madzi am'nyanja, Tsegulani mchere, kapena amafuna mphamvu zapamwamba, kudalirika kwa a valavu ya bronze (monga kalasi ya C95400) Tidzapereka mtendere wamalingaliro.
• Ndipo mukakumana ndi media yamphamvu kwambiri yamankhwala, Makunja apulasitiki Sonyezani mwayi wawo wosatsutsika. Muyenera kusankha molondola pa PVC, CPVC, Mas, kapena pvdf malinga ndi mankhwala, kutentha, ndi kukakamizidwa.

Pamapeto pake, Njira yosankhidwa bwino imayamba ndi kuwunika kwathunthu kwa dongosolo lanu. Samvetsetsa bwino sing'anga yanu, kutentha, kukakamiza, ndi chilengedwe, Kenako gwiritsani ntchito chitsogozo mu nkhaniyi kuti mugwirizane ndi zosowa zomwe zili ndi zinthu zosiyanasiyana. Kumbukira, Kusankha Ufulu valavu yolimbana Pofuna kuvuta m'dongosolo lanu ndi ndalama yayitali mu chitetezo chake, ubwino, ndi phindu.

FAQ

Ndi zinthu ziti zomwe zimagonjetsedwa ndi mavavu?

Kusankhidwa kwa zinthu zosagwirizana ndi chimbudzi cha valavu kumadalira kwambiri madziwo, ndende yake, kutentha, ndipo ochita masewera olimbitsa thupi. Palibe chilichonse chomwe sichikusintha kwa mitundu yonse. Nazi zina mwazinthu zosagwirizana kwambiri zogwiritsidwa ntchito pomanga valavu:

• Zitsulo:
  • Chitsulo chosapanga dzimbiri: Ichi ndi zinthu zogwiritsidwa ntchito kwambiri chifukwa cha kukana kwake kwabwino kwambiri pamankhwala ndi madera. Maphunziro osiyanasiyana, monga 304 ndi 316, Apatseni kuchuluka kwa kuchuluka kwa kukana, ndi 316 nthawi zambiri kukhala wamphamvu kwambiri, makamaka motsutsana ndi chlorides.
  • Bronze ndi mkuwa: Izi zowongolera zamkuwa ndizoyenererana kwambiri pamadzi, kuphatikiza madzi am'madzi. Amapereka kukana bwino kuwonongeka ndipo ndi osavuta ku makina.
  • Ma adotolo apadera: M'malo okwera kwambiri, Mitundu yapadera yopanga imapereka ntchito zapamwamba kwambiri. Izi zikuphatikiza:
• Masamba:
  • Ptche (Polytetrafluorothylene): Wodziwika bwino ndi dzina la Teflon®, Ptfe ndi fluoropolymer ndi kuthetsa kwapang'onopang'ono kwa mankhwala enanso ku malo ambiri owononga mankhwala. Nthawi zambiri imagwiritsidwa ntchito ngati ulusi kapena zisindikizo.
  • Polypropylene (Mas): Polymoplastic polmer yomwe imapereka kukana bwino ma acid, malo, ndi okhazikika okhazikika pamatenthedwe otsika.
• Zipangizo Zina:
  • Balaria: Zipangizo monga alumina ndi zirconia zimapangitsa kuuma kwambiri komanso kukana kwambiri kuvala ndi kututa kwa mankhwala ambiri, Ngakhale kutentha kwambiri. Nthawi zambiri amagwiritsidwa ntchito muzogwiritsa ntchito kwambiri komanso zowononga.

Kodi ndi njira zotetezera zotetezera?

POPANDA KUSINTHA ZINSINSI, Njira zingapo zitha kugwiritsidwa ntchito kuteteza mavunsi kuchokera ku chilengedwe, Kukweza moyo wawo wautumiki ndikuwonetsetsa chitetezo chantchito:

• Zokutira ndi zingwe: Kutsatira malo otetezera ku malo a valavu ndi njira yodziwika bwino komanso yothandiza.
  • Epoxy zokutira: Izi zimapereka zolimba, chotchinga choletsa mankhwala.
  • Zovala za PTF: Perekani ndodo yopanda ndodo, Msinkhulidwe wotsika kwambiri ndi kukana kwamphamvu kwa mankhwala.
  • Utoto: Zojambula zopangidwa mwapadera zimatha kulepheretsa chotchinga chakumlengalenga.
  • Mphira kapena pulasitiki: Kuyika malo amkati mwa valavu imatha kukhala yopanda chitsulo kuchokera ku madzi amphuno.
• Chithandizo cha Pamwamba:
  • Kutentha kwambiri: Njirayi imaphatikizapo zitsulo zolumikizira kapena chitsulo chopanda zitsulo kuti muteteze ku dzimbiri.
  • Odana: Njira ya electrochemical yomwe imathandizira chilengedwe chotetezera cha oxasi pamwamba pa zitsulo monga aluminiyamu.
• Chitetezo: Njirayi imaphatikizapo kupanga valavu ya cell ya electrochemical. Izi zitha kuchitika pophatikiza chindapusa mosavuta “nsembe yangwiro” chitsulo (Monga Ayode wa Zirn) kapena poganizira zamagetsi.
• Zotupa zamkati: Izi ndi mankhwala owonjezeredwa ku madzi omwe amachepetsa kuchuluka kwa chitsulo.
• Kuwongolera zachilengedwe: Kusintha chilengedwe mozungulira valavu imathanso kuchepetsa. Izi zingaphatikizepo kuchepetsa chinyezi, Kuwongolera kutentha, kapena kuchotsa zinthu zakumadzi.
• Kusankha Zinthu Zoyenera ndi Kapangidwe: Mzere woyamba wa chitetezo nthawi zonse amasankha zoyenera pazomwe mungagwiritse ntchito. Mapangidwe abwino omwe amapewa zolengedwa ndi madera omwe othandizira amatha kukhala okhazikika nawonso.

Kodi ma valve-Controssion ndi Zoyenera?

Mavalidwe a Anti-Corossion ndi Zoyenera si gulu lokhala ndi mavalidwe. M'mala mwa, ndi ma valve a Vorive (monga mpira, Geti, dziko, kapena mavalo a gulugufe) ndi zoyenerera zogwirizana (monga ma fronges, Mayini, ndi tees) zomwe zapangidwa makamaka ndikupangidwa pogwiritsa ntchito zida ndi / kapena zopangira zoteteza kuti mupewe kufesa m'malo ena.

Khalidwe lofunikira la valavu yotsutsa kapena yoyenerera ndi kuthekera kwake kusunga umphumphu ndi magwiridwe antchito kwa nthawi yayitali mukamawonekera. Izi zimathandizira kukwera kwa nthawi yonseyi, imalepheretsa kutayikira, ndikuchepetsa kukonza ndalama.