Introduction to the design standard of three piece flange high platform ball valve:
1. Design and manufacturing standards according to: BS5351 MSS sp-118;
2. Connection end according to:
1) Socket welding according to: ANSI B16.11; JB / t1751
2) Thread end according to: ANSI B16.11; JB / t1751
3) Butt welding end according to: ANSI B16.25; JB / t12224
4) Flange end according to: ANSI B16.5; jb79
3. Inspection and test basis: API 598; GB / t13927; JB / t9092
4. Structural features: three piece bolt connection
5. Material standard according to: ANSI / ASTM