Unofanira kuodha mavharuvhu ebhora pabasa, asi hauna chokwadi nezvehukuru chaihwo. Kuodha saizi isiriyo zvinoreva kunonoka uye kudzoka kunodhura, musoro usingadiwi nemaneja wekutenga.

Saizi dzemavharuvhu ebhora dzinoenderana nehukuru hwepombi dzavanobatanidza nadzo. Dzinowanzo bva pahukuru hudiki hwe 1/2 inch hwekushandiswa kumba kusvika pahukuru hwe 12 inch hwekushandiswa mumaindasitiri, zvichitevera mitemo yepasi rose yakaita seNPS neDN.

Kuwana saizi chaiyo ndiyo nhanho inokosha pakuodha. Zvinoita sezviri nyore, asi nemaitiro akasiyana anoshandiswa pasi rese, zvinogona kuvhiringa. Ndinoshanda nevamwe vakaita saBudi muIndonesia, uye tinofanira kunyatsonzwisisa saizi kuti tive nechokwadi chekuti vatengi vake vanowana zvavanoda pamapurojekiti avo. Kushandisa saizi chaiyo kunoita kuti ive yakakodzera, chisimbiso chakavimbika, uye sisitimu inoshanda sezvakagadzirwa. Izvi hazvisi zvechikamu chete; ndezvekubudirira kwekuisa kwese.

Mavharuvhu ebhora anowanikwa saizi dzipi?

Uri kutarisa katalogu yevatengesi uye runyorwa rwemasaizi emavharuvhu haruna magumo. Unofunga kuti ndeapi masaizi anoshandiswa pamabasa akajairika uye ndeapi anoshandiswa kumapurojekiti ehunyanzvi hwemaindasitiri.

Mavharuvhu ebhora anowanikwa muhukuru hwakasiyana-siyana kuti aenderane nehukuru hwese hwepombi. Kune akawanda mashandisirwo ePVC, izvi zvinowanzo patsanurwa kubva pa 1/2 inch (DN15) kusvika 12 inches (DN300).

Kuwanda kwemasaizi kunoreva kuti panevharuvhu yebhorapabasa rinenge chero ripi zvaro, kubva pane riri nyorepombi yebindukubatana nepaipi huru yemvura. Chinokosha ndechekunzwisisa kuti ndeapi saizi anoshandiswa pakushandisa kupi. Semugadziri, tinotakura saizi dzakajairika kuitira kuti vatinoshanda navo vawane zvavanoda pasina nguva yakareba yekubhadharwa. Kune musika wakaita seIndonesia, kuva nemidziyo yekugara yakagadzirira uyesaizi dzekudiridzaKubva pa 1/2″ kusvika 4″ kwakakosha kuti Budi ashumire vatengi vake zvinobudirira. Izvi zvinoita kuti mukondirakita agone kuwana vharuvhu yaanoda pabasa remazuva ese repombi nekuvaka.

Zvikamu zveSaizi uye Mashandisirwo

Saizi Range (Inches)	Saizi Yehukuru (DN)	Nyaya Dzinowanzo shandiswa	Mienzaniso yeMashandisirwo
Dzimba Diki	1/2″ – 1″	DN15 – DN25	Kuvharwa kwemidziyo yega yega, migero yemvura yepamba, pombi dzemubindu.
Zvekutengeserana zvepakati nepakati	1-1/4″ – 4″	DN32 – DN100	Kuvaka migero mikuru, masisitimu ekudiridza emabhizimisi, madziva ekushambira.
Maindasitiri Makuru	6″ zvichikwira	DN150 zvichikwira	Masisitimu emvura emakanzuru, migero yekugadzirwa kwemafekitori, kurima.

Mavharuvhu akajairwa ndeapi?

Unonzwa mazwi akaita seNPS, DN, Imperial, uye Metric. Izvi zvinogona kuita kuti kuodha kubva kunyika dzakasiyana-siyana kuvhiringidze uye kukonzera njodzi yekuwana chikamu chisingakwane pamapombi ako.

Saizi dzevharuvhu dzakajairwa dzinotsanangurwa nehurongwa hweNPS (Nominal Pipe Size), hunoshandisa mainji, kana hurongwa hweDN (Diameter Nominal), hunoshandisa mamirimita. Masisitimu ese ari maviri anovimbisa kubatana kwepasi rose pakati pemapaipi nezvibatiso.

Maitiro aya ndiwo mutauro weindasitiri yepombi. Akagadzirwa kuitira kuti vharuvhu yakagadzirwa mune imwe nyika ikwane zvakakwana papombi yakagadzirwa mune imwe. Nhamba yehukuru i "nominal," zvinoreva kuti izita rehukuru, kwete chiyero chaicho. Vharuvhu ye 2-inch haina muromo une 2,000 inches chaiyo. Yakagadzirirwa kukodzera pombi ye 2-inch. Kunzwisisa zvese zviri zviviriNPSuyeDNZvakakosha kune chero ani zvake ari kuita kutengeserana kwenyika dzese, seni nevamwe vangu. Zvinobvisa kusava nechokwadi uye zvinovimbisa kuti zvikamu zvichashanda pamwe chete zvakanaka.

Kunzwisisa NPS neDN Standards

Heino chati iri nyore yekushandura saizi dzakajairika. Kuva neizvi kunoita kuti zvive nyore kuchinja pakati pemasystem maviri uye kudzivirira kuvhiringidzika.

NPS (Inches)	DN (Mamirimita)
1/2″	DN15
3/4″	DN20
1″	DN25
1-1/2″	DN40
2″	DN50
3″	DN80
4″	DN100

Nzira yekuziva saizi yevharuvhu?

Uri panzvimbo yebasa uye unofanira kuchinja vharuvhu yekare. Vharuvhu yacho yakasviba, uye hapana kurongedza kana mapepa, saka hauzive kuti wotenga saizi ipi.

Kuti uone saizi yevharuvhu, tarisa muviri wevharuvhu kuti uone kana paine zviratidzo zvakadhindwa kana kuti zvakaiswa. Uchaona chiyero che inch (semuenzaniso, “2″) kana DN value (semuenzaniso, “DN50″).

Vagadziri vanowanzoisa chiratidzo chehukuru zvakananga pachigadzirwa. Iyi ndiyo nzira inokurumidza uye yakavimbika yekuchiziva. Nyatsotarisa muviri mukuru wevharuvhu. Dzimwe nguva logo yechiratidzo kana chiyero chekumanikidzwa chinonyanya kuoneka, asi chimiro chehukuru chinenge chiripo.mavharuvhu ebhora emubatanidzwa wechokwadi, unogona kuwanawo saizi yakanyorwa paunion nuts. Kana wangowana nhamba iyi, unogona kuva nechivimbo chekuodha chinotsiva chakakodzera. Kuongorora uku kuri nyore kunochengetedza nguva yakawanda uye kunodzivirira kushushikana kwekuwana chikamu chisiri icho.

Zvekuita Kana Pasina Zviratidzo

Kana vharuvhu yasakara zvikuru kana kuti yakasakara uye usingawani zviratidzo, une zvimwe zvingasarudzwa. Usangoyera kunze kwevharuvhu, sezvo izvi zvinogona kutsausa.

1. Tarisa Pombi:Iyi ndiyo nzira yakanakisisa. Pombi yakabatana nevharuvhu ichave nehukuru hwayo hwakadhindwa zvichienderana nehurefu hwayo. Tsvaga zviratidzo zvakaita sekuti “PVC Schedule 40 2 INCH” kana kuti “UPVC PN10 DN50″. Saizi yevharuvhu ichaenderana nehukuru hwepaipi.
2. Yera Chiteshi Chemukati:Yera nokungwarira dhayamita yemukati megomba rinoyerera mvura. Kuyera uku kuchave pedyo zvikuru nehukuru hwezita. Semuenzaniso, vharuvhu remainji maviri richava nedhayamita yemukati inosvika mainji maviri.
3. Enzanisa neValve Inozivikanwa:Kana uine mamwe mavharuvhu ehukuru hunozivikanwa, unogona kuenzanisa zvakananga.

Zvinorevei DN50 pavharuvhu?

Uri kuongorora pepa reruzivo rwehunyanzvi kubva kumutengesi wekuEurope. Unoona "DN50" uye unoda kuziva kuti saizi yacho ndeyei chaizvo maererano neruzivo rwauchanzwisisa kubva kuchikwata chako chemunharaunda.

DN50 inomiririra "Diameter Nominal 50 millimeters". Ndiyo metric standard size yepasi rose yakaenzana ne 2-inch (NPS) size inoshandiswa muUnited States nedzimwe nzvimbo.

Sisitimu yeDN inogadzira mwero wepasi rose kune wese munhu.Dhayamita yezita"Zvinongoreva kuti ndiro zita rehukuru, kwete chiyero chakasimba. Nekushandisa DN, maneja wepurojekiti muIndonesia akaita seBudi anogona kuodha kubva kumugadziri akaita seni muChina, uye tese tinoziva chaizvo zvatiri kutaura nezvazvo. Izvi zvinobvisa kuvhiringidzika pakati pemasystem emetric neeImperial uye ndiyo hwaro hwekuenderana kwenyika muindasitiri yedu. Paunoona DN, unoziva kuti uri kushandisaMuyero weISOIzvi zvinoita kuti vharuvhu yeDN50 ikwane chero pombi yeDN50 kana fitting, zvisinei kuti yakagadzirwa kupi.

Saizi Dzakajairika dzeDN uye Kuenzana Kwadzo kweInch

Kunzwisisa hukama uhwu ndicho chinhu chakakosha pakushanda nezvigadzirwa zvepasi rose.

Saizi yeDN	Zvinoreva Zvakananga	Yakaenzana neInchi Yakafanana (NPS)
DN15	Dhayamita yezita 15 mm	1/2″
DN25	Dhayamita yezita 25 mm	1″
DN50	Dhayamita yezita 50 mm	2″
DN100	Dhayamita yezita 100 mm	4″

Kugadziriswa uku ndiko kunoita kuti tikwanise kuvaka masisitimu emvura akavimbika pasi rose.

Mhedziso

Kunzwisisasaizi yevharuvhu yebhoraZvakakosha pakuronga zvikamu zvakakodzera. Nekuziva masisitimu akajairwa akaita seNPS neDNuye kuti ungawana sei saizi pavharuvhu, unodzivisa zvikanganiso zvinodhura.