1) Design and manufacture: API6D, B16.34 2) Face to face: ASME16.10, API6D 3) Inspection: API 598, API6D 4) Flanges: ANSI B16.5, BS4504, JIS 5) Size: DN1/2~60 6) Pressure: Class 150lbs~2500lbs 7) Temperature: 0~80oC 8) Material: A105, LF2, F304, F304L, F316, F321, F51 Packing: Plywooden case