Design Standard: API 602, BS 5352
Inspection & Test: API 598
Face To Face: ANSI B16.10
End Connection: Screwed AS PER BSP/BSPT/NPT, Weld AS PER SW/BW, Flange AS PER RF/RTJ
Flange Connection: ANSI B16.5 (For NPS≤24) / ANSI B16.47 SERIES B, ANSI 16.47 SERIES A, MSS SP-44 (For NPS >24)
Butt Weld End: ANSI B16.25
Socket Weld End: ANSI B16.11
Screwed End: ANSI B1.20.1 (BSP/NPT)
1.Small fluid resistance
2.The torque for opening and closing is small, so it is easy to open and close.
3.The medium flowing direction is not restricted, and it doesn’t disturb flowing and reduce the pressure of pipeline.
4.Short length structure
5.Good sealing performance
6.Simple shape, good casting process, widely used