Tebur na abubuwan da ke ciki
Ko don injiniyoyi ko ɗalibai, fahimtar bututun bututun bututu da makamancinsu ya ƙunshi fahimtar bayanai. Daga cikin wadannan, Girman yana daya daga cikin mahimman sigogi masu mahimmanci.
Idan muka yi magana game da girman bututu, Muna iya tunanin kawai yana nufin diamita. Amma a zahiri, Ba shi da sauki. Wannan saboda akwai nau'ikan bututu da yawa - tare da kayan daban-daban, dalilai, katsewar bango, da sauransu - wanda ke nufin ba za mu iya bayyana girman su ba a cikin girman girman guda ɗaya-duka.
Wannan post din zai bayyana ilimin da ya dace game da girman bututu, kamar yadda girman ya bayyana, raka'a amfani, Tagple Tables, da kuma ƙari.
Hanyoyi don bayyana girman bututun
Akwai hanyoyi da yawa don bayyana girman bututu. Sau da yawa muna ganin waɗannan haruffa da alamomi: “Dn”,”Na”, “ID”, “Nps”, “F”. Duk waɗannan za a iya amfani da su don nuna girman bututu, Amma akwai wasu bambance-bambance tsakanin su. Daga nan, Zan yi bayanin su a gare ku daya bayan daya.
Nominal diamita
An rufe shi kamar “Dn”. Mutane da yawa sun yi kuskure sun yi imani da cewa yana nufin ainihin diamita na bututu, Amma wannan rashin fahimta ne. Nominal Diamister ba ainihin ko daidaitaccen diamita bane, Kuma ba ya waje ko diamita na ciki. A zahiri an yi amfani da matsayin hoton da aka saba amfani da shi don girman girman bututu a Turai da Asiya. Tunda akwai nau'ikan bututu da kuma kayan aiki-kamar masu haɗi iri-iri, bawuloli, flanges, Sabili da haka a kan-wani daidaitaccen daidaitaccen daidaitaccen ake buƙata don ayyana su a sarari. Wannan shine abin da diami'in nominal yake. Kuna iya tunanin shi a matsayin babban taron masana'antu don nufin girman bututun.
A waje diamita da a cikin diamita
A waje diamita an rufe shi kamar “Na”, da ciki a cikin diamita an rufe shi kamar “ID”. Kwatanta su ta gefe yana sa su sauƙaƙe fahimta. Dabarun waje na diamita da diamita na ciki saboda bututu suna da kauri, kuma idan muka kirga bututun bututun daidai, Kada a manta da kauri.
Diamita na waje shine diamita na bakin ciki na bututun, da kuma a ciki diamita ne na waje diamita a cikin kauri bango. Kamar yadda aka nuna a zane a ƙasa, L1 shine na waje na waje, L2 shine a cikin diamita, kuma l3 shine kauri bango. Ana iya bayyana alaƙar da ke tsakanin su tare da dabara: L1 = l2 + L3 × 2.
Misali, Idan na waje diamita na bututu shine 50mm da kauri na bango shine 2mm, sannan ta a cikin diamita ta zama 50 – 2 × 2 = 46mm.
Girman bututun mai
An rufe shi kamar “Nps”. Kama da DN, Hakanan shine ingantaccen sunan-daidaitaccen sunan girman bututu, Maimakon haka yana nufin takamaiman diamita na waje ko diamita na ciki. Duk da haka, Ana amfani dashi a cikin tsarin daidaitaccen Amurka (Asme / Anis).
F
Wannan alamar tana nufin diamita ta waje na bututu. Tunda bututun da muke amfani da su, Dokarsu ta waje za ta iya wakilta ta “F”.
Misali, Idan muka gani “0”, Yana nufin bututun na PIPE a waje na diamita shine 100 m. Idan muka gani “% × 4”, Yana nufin diamita na waje shine 100mm da kauri bangon shine 4mm.
Raka'a girman bututu
Raka'a na girman bututu gabaɗaya cikin raka'a awo da raka'a gwamnati. Don raka'a awo, Mafi yawan amfani da na yau da kullun ne na milimita (mm). Ga raka'a na gwamnati, Mafi yawan amfani da na yau da kullun yana cikin inch (Inch /”). Tubawa tsakaninsu shine: 1 Inch = 25.4 mm.
Gabaɗaya, DN yana amfani da milimita kamar yadda naúrar, Yayinda NPS ke amfani da Inci kamar naúrar.
Don ba da misali, Idan muka ga DN80, Yana nufin noman diamita na bututun shine 80 m. Amma da fatan lura, Wannan lambar bata nufin cewa ainihin diamita na bututu daidai bane 80 m.
Idan muka ga NPS 3″, Yana nufin nominal butle girman shi ne 3 inci. Amma kuma, Da fatan za a lura, Wannan lambar bata nufin cewa ainihin diamita na bututu daidai bane 3 inci.
Bututun girman bututu
Dabarun diamita na waje da diamita a cikin diamita yana da sauƙin rarrabe. Amma don DN da NPS, Wasu mutane na iya kasancewa da wahala cikakke fahimtar su. Haka, Don taimakawa zurfafa fahimtarku, Na kirkiro kwatancen kwatancen DN, Nps, Na, da ID. Ta hanyar nufin teburin da ke ƙasa, Kuna iya fahimtar dangantakar a tsakanin su da kuma yadda za a canza tsakanin su.
Lura cewa diamita a ciki da aka jera a cikin tebur suna da kimanin dabi'u. Wannan saboda bututu daban-daban a cikin kauri na bango da nau'in - misali, Pipe pipe, PVC bututun, karfe bututun karfe, riƙaƙa. - da kuma riguna na bango da ƙa'idodi sun bambanta. Saboda haka, Don dacewa, Na yi amfani da ƙimar ƙimar a cikin tebur. Idan kana bukatar cikakken bayanai, Jin kyauta ga Tuntube mu.
| Bututun girman bututu (Dn, Nps, Na, ID) | |||
| Nominal diamita(mm) | Girman bututun mai(“) | A waje diamita(mm) | Kimanin diamita(mm) |
| 15mm | 1/2″ | 21.25mm | 15mm |
| 20mm | 3/4″ | 26.75mm | 20mm |
| 25mm | 1″ | 33.5mm | 25mm |
| 32mm | 1-1/4″ | 42.25mm | 32mm |
| 40mm | 1-1/2″ | 48mm | 40mm |
| 50mm | 2″ | 60mm | 50mm |
| 65mm | 2-1/2″ | 73mm | 64mm |
| 70mm | 2-1/2″ | 75.5mm | 70mm |
| 80mm | 3″ | 88.5mm | 80mm |
| 100mm | 4″ | 114mm | 106mm |
| 125mm | 5″ | 140mm | 131mm |
| 150mm | 6″ | 165mm | 156mm |
| 200mm | 8″ | 219mm | 207mm |
| 250mm | 10″ | 273mm | 259mm |
| 300mm | 12″ | 325mm | 309mm |
| 350mm | 14″ | 377mm | |
| 400mm | 16″ | 426mm | |
| 450mm | 18″ | 478mm | |
| 500mm | 20″ | 529mm | |
| 600mm | 24″ | 630mm | |
| 700mm | 28″ | 720mm | |
| 800mm | 32″ | 820mm | |
Ƙarshe
Ta wannan labarin, Yanzu ya kamata ku sami fahimtar menene “Dn”, “Na”, “ID”, “Nps”, da “F” kowane ma'ana, kazalika da dangantakarsu. Ina fatan abun ciki na wannan labarin ya taimaka wa kowa da kowa.
Daga bisani, Ina so in gabatar da kamfaninmu. Rainfaun wani samfurin ruwa ne na kayan ruwa na samfurin ruwa a China. Mun samar da fitarwa Drip Abubuwan ban ruwa, Samfuran da aka yafa, bututun, dacewa, da kuma ƙari. Kuna iya samun bayani Game da Rainfaun da Kayan mu A kan wannan gidan yanar gizon.
Idan kuna da wasu tambayoyi ko kuma kuna son yin hadin gwiwa tare da mu, za ka iya Danna nan Don cika fom ɗin.
Mawallafi: Michael
Edita: Michael
Mai bita ciki: Michael
