• Design Standard: API16D/API608
• Nominal Diameter: DN50-DN600 (2”-24”)
• Top Flange acc: EN ISO 5211
• Flange Connection: ASME B16.5
• Face to Face acc: API6D/ASME B16.10
• Pressure Rating: Class150, Class300，Class600，Class900
• Test STD: API598/API6D
