1.Design standard: API 6D, GB/T12237;

2. Ajuiɛɛr: API 6D, ASME B16.10, GB/T12221;

3. Flange size: ASME B16.5, ASME B16.47, GB/T9113;

4.Testing and inspection: API 598, JB/T9092.

Lëk:

1.Series valve connector flange and on welding end size can be designed and manufactured according to user requirements. 1.Series valve connector flange and on welding end size can be designed and manufactured according to user requirements. 1.Series valve connector flange and on welding end size can be designed and manufactured according to user requirements.

2.DN> 1000 (40') valve design standard according to "Long pipeline valve technical conditions"