Kurumidza kusiyanisa pombi Φ, DN, uye inches

Mukugadzirwa uye kuwanikwa kwemapombi, mapipe fittings nemavalvu, Φ, DN uye inches (“) mayuniti matatu especification ari nyore kuvhiringidzika. Musiyano wavo mukuru ndewekuti: Φ inomiririra dhayamita chaiyo yekunze, DN ndiyo kodhi yespecification mumetric system, uye inches ndiyo kodhi yespecification mu imperial system. Tevere, mutsauko wakadzama nekubatana pakati pematatu aya zvinotsanangurwa:

1. Kusiyana kwetsananguro huru

Φ (dhayamita):Φ ibhii rechiGiriki iro muinjiniya rinomiririra dhayamita chaiyo yemuviri (kazhinji dhayamita yekunze). Ndiyo nzira inonyanya kuzivikanwa uye haidi kushandurwa. Semuenzaniso, Φ114.3 zvinoreva kuti dhayamita chaiyo yekunze yepombi i114.3mm.

DN (Dhayamita Yezita):DN (Nominal Diameter) ndiyo nominal dhayamita mu metric system. Haisi dhayamita yemukati kana dhayamita yekunze, asi "nominal size" yakagadzirwa kuti zvive nyore kubatanidza (inenge avhareji yedhayamita yemukati nedhayamita yekunze). Semuenzaniso, DN100 ingori kodhi yekutsanangura uye dhayamita yayo chaiyo yekunze inogona kunge iri 114.3mm kana 108mm.

Inch (“):Inch iyuniti yehurefu muhurongwa hwehumambo (1 inch = 25.4mm). Mumapaipi, inomiririrawo dhayamita yezita. Semuenzaniso, 4″ inomiririra pombi ye4-inch, uye dhayamita yayo chaiyo yekunze yakagadzika pa114.3mm.

2. Kujeka uye kusiyana kwekuzivikanwa

Φ Zvakajeka zvikuru:dhayamita chaiyo yekunze yakanyorwa zvakananga, zvaunoona ndizvo zvaunowana, hapana kusanzwisisika.

Inchi dzakanyatsojeka:Mumapaipi ekuBritain (Pipe), dhayamita yekunze inoenderana nemainchi yakasiyana. Semuenzaniso, 4″ iΦ114.3, 10″ iΦ273, hapana imwe simbiso inodiwa.

Pane kusanzwisisika muDN:DN value imwecheteyo inogona kuenderana nedhayamita mbiri dzakasiyana dzekunze mumasystem emapaipi epamba. Semuenzaniso DN100:

- Nhevedzano I (Nhevedzano/yepasi rose):dhayamita yekunze ndeye Φ114.3mm

- II series (B series/kushandiswa kwepamba):dhayamita yekunze ndeye Φ108mm

Saka, pakutenga kana kudhirowa, kana ukanyora DN100 chete, unofanirawo kuratidza kana iri I series kana II series, zvikasadaro zviri nyore kutenga chigadzirwa chisiri icho.

3. Hukama hwekubatana uye kutendeuka pakati pevatatu ava

Izvi zvitatu hazvigone kushandurwa nekuwanda nekupatsanura zviri nyore kwemasvomhu (semuenzaniso, haugone kushandisa DN100 / 25.4 zvakananga kuverenga mainji), asi unofanirwa kuvimba nematafura ekuenzanisa akajairwa eindasitiri.

4. Mamiriro ezvinhu anoshanda uye zvirevo zvekunyora mazita

DN:Inowanzoshandiswa mumapombi esimbi ekufambisa mvura negasi (akavharirwa kana asina kuvharirwa), mapaipi esimbi akaumbwa, mapaipi epurasitiki, nezvimwewo.

Φ:Inowanzoshandiswa mumapaipi esimbi asina musono, mapaipi esimbi isina ngura, mapaipi esimbi asina ngura, nezvimwewo. Painoisa chiratidzo, inowanzo shandiswa pamwe chete neukobvu hwemadziro, hwakadai seΦ108×4 (zvichireva dhayamita yekunze 108mm, ukobvu hwemadziro 4mm).

Inchi:Inonyanya kushandiswa mumapaipi nemavharuvhu mumasisitimu ekuAmerica neEurope, pamwe chete nemuminda yemaindasitiri yechinyakare yakadai semafuta negasi rechisikigo.

5. Pfupiso

Φ:Inomiririra dhayamita chaiyo yekunze kwepombi. Kuti usarudze inoenderana nayovharuvhu yeshavishavi, vharuvhu yegedhiuyevharuvhu yekutarisa, ingotarisa dhayamita chaiyo yekunze kwepombi zvakananga.

DN:Inongova kodhi yedhayamita yemetric nominal. Paunenge uchitenga mavharuvhu, iva nechokwadi chekusimbisa A/I neB/II series kudzivirira kutadza kubatanidza maflanges.TWSzvekushandisamavharuvhu eshavishavi, mavharuvhu egedhi, mavharuvhu ekuongororanezvimwe zvigadzirwa. Pakuodha, ma parameter ekutevera anofanira kutsanangurwa kuti ave nechokwadi chekuti mapaipi anoenderana.

Inch (“):Dhayamita yeBritish nominal, inonyanya kushandiswa kumavharuvhu anotengeswa kunze kwenyika. 25.4 haigone kushandiswa kungoshandura dhayamita yekunze zvakananga. Inofanira kusimbiswa nekutarisa tafura yakajairwa.