Mukufuna valavu ya mzere wa mafakitale kapena mankhwala, koma simukudziwa ngati pulasitiki ingathe kuthana ndi kupanikizika. Kusankha valavu yolakwika kungayambitse kutuluka kwa madzi koopsa, nthawi yopuma yokwera mtengo, komanso ngozi yayikulu yachitetezo.

Valavu ya mpira wa PP yabwino kwambiri, monga ma Pntek model athu, ali ndi PN16 pressure rating. Izi zikutanthauza kuti imatha kugwira bwino 16 bar (pafupifupi 235 PSI) kutentha kwa chipinda. Chofunika kwambiri, mphamvu imeneyi imachepa pamene kutentha kwa madzi kumakwera.

Ndikamalankhula ndi ogwirizana nawo monga Eric Lim ku Malaysia, kuwerengera kupanikizika si nambala yokha; koma ndi za chitetezo ndi kudalirana. Kampani yake imapereka mapulojekiti ku Southeast Asia konse, ndipo amafunika kudziwa kuti zinthu zomwe amagulitsa sizingalephereke. Kuwerengera kupanikizika komwe kwatchulidwa ndi valve ndiye poyambira, koma ukatswiri weniweni uli pakumvetsetsa momwe zimakhalira pansi pa zochitika zenizeni. Chidziwitso ichi ndi chomwe chimasiyanitsa malonda osavuta ndi mgwirizano weniweni, ndipo ndicho chomwe timayang'ana kwambiri ku Pntek.

Kodi valavu ya mpira imathamanga bwanji?

Mumawona mawu monga CLASS 150, PN16, ndi CWP pa ma data sheet ndipo mumasokonezeka. Kusokonezeka kumeneku kungayambitse kuyitanitsa valavu yolakwika mwangozi, zomwe zimapangitsa kuti kasitomala wanu asagwiritse ntchito njira yotetezeka.

Kuyeza kwa kuthamanga kwa magazi kumakuuzani kuchuluka kwa kuthamanga kwa magazi komwe valavu ingathe kupirira kutentha kwinakwake. Miyezo yosiyanasiyana monga PN (European), Class (American), ndi CWP (General) imagwiritsidwa ntchito, kotero muyenera kudziwa njira yomwe mukuyang'ana.

Tiyeni tifotokoze momveka bwino mawu awa chifukwa ndi osavuta kuposa momwe amaonekera. Kuyeza kwa kuthamanga ndiye mfundo yofunika kwambiri yotetezera valavu iliyonse. Komabe, madera osiyanasiyana padziko lapansi ndi mafakitale osiyanasiyana amagwiritsa ntchito machitidwe osiyanasiyana, zomwe zingakhale zosokoneza. Pa makina opachikira mapaipi apulasitiki, nthawi zambiri muwonaPNmlingo. “PN” ikuyimiraKukakamiza Nominale, lomwe ndi Chifalansa lotanthauza Kupanikizika Kodziwika. Limasonyeza kupanikizika kwakukulu mubalakuti gawoli likhoza kupirira kutentha kwa chipinda (20°C). Mlingo wina wodziwika bwino ndiCWP, kapena Kupanikizika Kozizira. Izi zikufanana ndi PN, zomwe zimakuuzani kuchuluka kwa kuthamanga kwa kutentha kwa mlengalenga. Pa ma valve a mafakitale kapena achitsulo, mutha kuwonaKalasimlingo (monga, Kalasi 150, Kalasi 300), womwe ndi muyezo waku America (ANSI) womwe umatanthauzira malire a kuthamanga kwa mpweya pa kutentha kosiyanasiyana. Pa ntchito yathu, kuyang'ana kwambiri pa PN ndikofunikira.

Machitidwe Odziwika Okhudza Kupanikizika

Dongosolo	Imayimira	Kugwiritsa Ntchito Kwambiri	Chitsanzo
PN	Kukakamiza Nominale	Mapaipi ndi ma valve a thermoplastic (muyezo wa ku Europe)	PN16 (16 bar pa 20°C)
Kalasi	N/A (Muyezo wa ANSI)	Ma valve ndi ma flange achitsulo (muyezo waku America)	Kalasi 150
CWP	Kuthamanga Kozizira Kogwira Ntchito	Ma valve ogwiritsidwa ntchito nthawi zonse (Madzi, Mpweya)	600 CWP

Kodi chiŵerengero cha kupanikizika kwa zolumikizira za polypropylene ndi chiyani?

Mwatsimikiza kuti valavu yanu ndi yolondola, koma bwanji za zolumikizira zomwe zimailumikiza? Dongosolo limakhala lolimba ngati gawo lake lofooka kwambiri, ndipo cholumikizira chosagwirizana chingayambitse kulephera kwakukulu.

Zipangizo zolumikizira za polypropylene zimayesedwanso pogwiritsa ntchito makina a PN, nthawi zambiri PN10 kapena PN16. Kuti makina akhale odalirika, mphamvu ya zolumikizira ndi mapaipi anu iyenera kukhala yofanana kapena yayikulu kuposa mphamvu ya ma valve anu.

Ndimakumbutsa Eric Lim nthawi zonse kuti valavu sigwira ntchito yokha. MukumangadongosoloNgati muyika valavu yamphamvu ya mpira ya PN16 koma muyilumikiza ndiZolumikizira za PN10, kuthamanga kwakukulu kwa ntchito yonse ya makina anu tsopano ndi PN10 yokha (10 bar). Gawo lofooka kwambiri limalamulira mphamvu ya unyolo wonse. Ichi ndichifukwa chake tinatsimikiza kuti Pntek yathuMa valve a mpira wa PPndi PN16 yolimba. Izi zimapereka maziko olimba, koma ndikofunikira kuziphatikiza ndi mapaipi a PN16 ndi zolumikizira kuti zisunge mphamvu yamphamvu yamagetsi pamzere wonse. Chofunika kwambiri, makamaka ndithermoplasticsmonga polypropylene, kutentha kwake kumafanana ndi kutentha. Madzi akamatentha kwambiri, zinthuzo zimakhala zofewa, ndipo mphamvu yake yosunga mphamvu imatsika kwambiri. Izi zimatchedwa 'kusokoneza', ndipo nthawi zonse muyenera kutsatira zomwe wopanga amapanga.tchati cha kutentha kwa kuthamangakuti agwire ntchito mosamala.

Kodi valavu ya mpira imatha kusunga psi zingati?

Mumangofuna yankho losavuta mu PSI, koma zofunikira nthawi zambiri zimakhala mu "bar" kapena "PN". Kutembenuza mwachangu m'mutu mwanu kumakhala koopsa pamene chitetezo ndi umphumphu wa zida zili pachiwopsezo.

Izi zimasiyana kwambiri, kuyambira pa 150 PSI pa mavavu ena apulasitiki mpaka kupitirira 10,000 PSI pa mavavu apadera achitsulo opanikizika kwambiri. Kuti mupeze PSI, sinthani kuchokera pa PN rating: bala limodzi ndi pafupifupi 14.5 PSI.

Palibe yankho limodzi la funsoli, ndichifukwa chake ndikofunikira kwambiri kuyang'ana valavu yomwe mukugwiritsa ntchito. Zipangizo zake (PP, PVC, Brass, Stainless Steel), kukula, ndi kapangidwe kake zonse zimasintha yankho. Komabe, titha kuzipangitsa kukhala zosavuta kwambiri pazinthu zathu. Pntek yathuMa valve a mpira wa PPali ndi mavoti a PN16. Kusinthaku n'kosavuta, ndipo aliyense mu gulu lanu ayenera kudziwa izi: ingochulukitsani mtengo wa bar ndi 14.5. Chifukwa chake, PN16 rating ikutanthauza kuti valavu imatha kusunga 16 bar of pressure. Kuti mupeze PSI, mumawerengera: 16 bar x 14.5 PSI/bar = 232 PSI. Nthawi zambiri timazungulira izi kuti235 PSIkuti mupeze nambala yomveka bwino komanso yotetezeka. Iyi ndi nambala yomwe imayikidwa pa kutentha kwa mlengalenga. Ngati kasitomala wanu ku Kuala Lumpur akuthamanga madzi pa 60°C (140°F) kudzera mu mzerewu, nambala ya 235 PSI siigwiranso ntchito. Kuthamanga kotetezeka kudzakhala kotsika kwambiri, monga momwe zasonyezedwera pakupotoza kolakwika.

Kusintha kwa PN kukhala PSI wamba

Kuchuluka kwa PN	Kupanikizika mu Bar	Kupanikizika mu PSI (pafupifupi)
PN10	bala 10	145 PSI
PN16	bala 16	235 PSI
PN20	bala 20	290 PSI
PN25	bala 25	362 PSI

Kodi valavu ya mpira wa PP ndi chiyani?

Mumaona ma valve a PVC ndi CPVC paliponse, kotero mumadabwa chifukwa chake muyenera kuganizira za PP. Kusadziwa ubwino wapadera wa polypropylene kumatanthauza kuti mukusowa yankho labwino kwambiri kwa kasitomala wanu.

Valavu ya mpira wa PP ndi valavu yozungulira kotala yopangidwa ndi polypropylene, thermoplastic yomwe imakondedwa chifukwa cha kukana kwake mankhwala. Ndi chisankho cholimba, chopepuka, komanso chotsika mtengo choletsa madzi owononga omwe angawononge mavavu achitsulo.

Mphamvu ya polypropylene ndi kukana kwake mankhwala. Imayima bwino kwambiri motsutsana ndi mitundu yosiyanasiyana ya ma asidi, maziko, mchere, ndi mankhwala amafakitale. Izi zimapangitsa kuti ikhale chinthu chofunikira kwambiri m'mafakitale monga kukonza mankhwala, kukonza madzi, ndi ulimi. Ku Pntek, tinaona kuthekera kwake ndipo tinaganiza zoikonza. Tinapanga yathu.Valavu ya Mpira wa PP Compressionkutengera kapangidwe ka nkhungu kapadera komanso kokhala ndi patent. Izi zimatipatsa ulamuliro wonse pa ubwino ndi magwiridwe antchito. Chinthu chachikulu ndi kudzipereka kwathu kuChiyeso cha PN16 cha kukula konse, kuyambira yaying'ono mpaka yayikulu. Izi sizofala pamsika, koma tikukhulupirira kuti chitetezo ndi khalidwe ziyenera kukhala zofanana. Ichi ndi chifukwa chachikulu chomwe ma valve athu amagulitsidwa kwambiri m'misika yovuta ku Southeast Asia, Middle East, ndi South America. Amapereka njira yodalirika komanso yotsika mtengo yosamalira mankhwala ndi madzi mosamala.

Ma Valavu a Mpira wa Pntek's PN16 PP

Mtundu Wolumikizira	Masayizi Opezeka
Mapeto a Socket	20mm, 25mm, 32mm, 40mm, 50mm, 63mm, 75mm, 90mm, 110mm
Mapeto Okhala ndi Ulusi	1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 4″

Mapeto

Kuyeza kwa PN16 kwa valavu ya mpira wa PP ndikofunikira, koma nthawi zonse kumakhudza kutentha. Kumvetsetsa ubale uwu ndikofunikira kwambiri popanga dongosolo lotetezeka, lodalirika, komanso lokhalitsa kwa makasitomala anu.