1. Mhedzisiro
Imperial simbi pombi inorambidzwa neguta guru "DN." Saizi inosanganisira DN15 (4-inch pombi), DN20 (6-inch pombi), DN5 (2-inch pombi), DN5 (3-inch Pipe), DN125 (5-inch pombi), Dn150 (6-inch pombi), DN200 (8-inch pombi), uye DN250 (10-inch pombi). Semuenzaniso, a DN25 (25 mm) pombi yemvura yakaenzana neipi yepaipi 1-inch pombi, inozivikanwawo seye 8-inch pombi pamberi pehondo yerusununguko. Iyo DN15 PIPE PIPE yakaenzana neiyo Imperial Pipi 1/2-inch, inozivikanwawo seye 4-inch pombi pamberi pehondo yerusununguko. Semuenzaniso, pombi yemvura yeDN2 ndeye 3/4 "Britain standard, inozivikanwawo seye 6-inch pombi pamberi pekufamba kwesununguko.
2. Zvimiro zvepasi rese
International Standard Standard Pombi inoenderana nekukamura inch muzvikamu zvidiki. Zvinyorwa zvinosanganisira 1/8, 1/4, uye 3/8 inches, zvakaenzana nekuzivikanwa kuzivikanwa 1-inch uye 7-inch pombi. Zvidiki zvidiki zvinoratidzwa sa 1/16, 1/32, uye 1/64, ichiri mumasendimita. Kana iyo sangano uye numerictors inogona kuderedzwa (semuenzaniso, hunyanzvi ndeye 2, 4, 8, 16, kana 32), dzinofanira kudzikiswa.
3. Steel pipe size kuverenga
Iyo yehuremu yekuverenga mafomula yemhando dzakasiyana dzebhandi pombi dzinosiyana. Pazasi, migao ichasuma muchidimbu kuwanda kwehuremu hwehuremu hwekuverenga:
Round Steel uremu (kg)=0.00617 x diameter x diameter x urefu;
Step Steel uremu (kg)=0.00785 x side predth x side preedth by x urefu;
Flat Steel uremu (KG) {{0} x gobvu x frame x urefu.