Waa maxay dhexroorku?

Guud ahaan marka lagu hadlayo, dhexroorka tuubbada waxaa loo qaybin karaa dhexroor bannaanka ah (de), dhexroor gudaha ah (d), dhexroor (DN).
Hoos waxaa ku siinaya kala sooc u dhexeeya "De, D, dn" kala duwanaanshaha.

DN waa dhexroorka loo yaqaan 'The Pipe'

FIIRO GAAR AH: Tani ma aha dhexroor dibadda ah ama dhexroor gudaha ah; waa inay la xiriirtaa horumarka hore ee injineerinka dhuumaha iyo unugyada boqortooyada; Badanaa waxaa loo isticmaalaa in lagu qeexo tuubbada birta ee galka ah, oo u dhiganta cutubyada boqortooyada sida soo socota:

Tuubbada 4-Qayb: 4/8 inji: Dn15;
6-Daqiiqo Tuub: 6/8 inji: DN20;
1 Inch Tuub: 1 inji: Dn25;
Inch laba tuubbo: 1 iyo 1/4 inji: Dn32;
Tuubbada nusch in inji ah: 1 iyo 1/2 inji: DN40;
Laba tuubbo: 2 inji: DN50;
Saddex-inji-inji: 3 inji: DN80 (meelo badan ayaa sidoo kale lagu calaamadeeyay DN75);
Tuubbada afarta-inji: 4 inji: Dn100;
Biyo, bir bir bir ahtuubbada bir kululama tuubbada birta ee aan galka lahayn, tuubada birta, tuubada birta ah ee birta ah iyo passvinyl chloride chloride (PVC) tuubbooyinka iyo qalabka kale ee tuubbada, waa in lagu calaamadeeyaa dhexroor "dn" (sida DN15, DN1).

 

De badanaa waxaa loola jeedaa dhexroorkii dibadda ah ee tuubbada
Isticmaalka guud ee sumadaynta De, waxaa loo baahan yahay in lagu calaamadeeyo qaab dhexroor dibad u leh;

Inta badan loo isticmaalay in lagu qeexo:tuubbada birta ah, PVC iyo tuubooyinka kale ee caagga ah, iyo tuubooyin kale oo u baahan dhumuc dheer oo derbiga ah.
Qaado tuubbada birta ee loo yaqaan 'glvanan' steel steel ah tusaale, iyada oo DN, de laba habab sumadeeya ay yihiin sida soo socota:
Dn20 de25 × 2.5mm
DN25 de32 × 3mm
Dn32 de40 × 4mm
DN40 de50 × 4mm

......

 

D guud ahaan waxaa loola jeedaa dhexroor gudaha ah ee tuubbada, D wuxuu muujiyaa dhexroor gudaha ah ee tuubbada tuubbada la taaban karo, oo φ waxay muujineysaa dhexroorka goobada caadiga ah

Φ sidoo kale waxay muujin kartaa dhexroorkii dibadda ee tuubbada, laakiin markaa waa in lagu badiyaa dhumucda darbiga.
Tusaale ahaan, φ25 × 3 macnaheedu waa tuubbo dhexroor ka baxsan 25mm iyo dhumuc darbi xumo ah oo ah 3mm.
Burburinta birta ee aan kala go 'lahayn ama tuubbada birta ee aan fiicnayn, waa in lagu calaamadeeyaa "dhexroor dhumuc weyn oo gidaarka ah".
Tusaale ahaan: φ107 × 4, halkaas oo φ laga saari karo.
Shiinaha, ISO iyo Japan oo ka mid ah sumadaha birta birta iyadoo la adeegsanayo dhumucda darbiga si loo muujiyo dhumucda darbiga ee taxanaha tuubbada birta. Noocan tuubbada birta ah, habka loo muujiyo ee tuubbada ka baxsan dhexroor dhumuc weyn. Tusaale ahaan: φ60.5 × 3.8

De, dn, d, ф, ф of tibaabinta tibaabinta!
De- ppr, pe tuubbada, polypropylene ppe
DN - polyetylen (pvc) tuubbada, tuubada birta, tuubbada birta ee birta ah, oo ah dhexroor bir ah oo bir ah
d - dhexroor la taaban karo oo la taaban karo
Pipe the pipe trsalka birta ee birta ah