Standard Design: API 602, BS 5352
Ayewo & Idanwo: API 598
Oju Lati Oju: ANSI B16.10
Isopọ Ipari: Ti bajẹ AS PER BSP/BSPT/NPT, Weld AS PER SW/BW, Flange AS PER RF/RTJ
Asopọ Flange: ANSI B16.5 (Fun NPS≤24) / ANSI B16.47 jara B, ANSI 16.47 jara A, MSS SP-44 (Fun NPS>24)
Butt Weld Ipari: ANSI B16.25
Socket Weld Ipari: ANSI B16.11
Ipari ti bajẹ: ANSI B1.20.1 (BSP/NPT)
1. Kekere ito resistance
2. Awọn iyipo fun šiši ati pipade jẹ kekere, nitorina o rọrun lati ṣii ati sunmọ.
3. Awọn itọnisọna ti nṣàn alabọde ko ni ihamọ, ati pe ko ṣe idamu ti nṣàn ati dinku titẹ ti opo gigun ti epo.
4. Kukuru ipari be
5. Ti o dara lilẹ išẹ
6. Apẹrẹ ti o rọrun, ilana simẹnti to dara, lilo pupọ