• In accordance to: ASME/ANSI B16.5, MSS SP-6, 25 & 51
• Permanent identification
• ASTM/ASME A/SA-182
Long Weld Neck Flanges
Class150 Class 300 Class 600
Pressure Temperature Ratings
Class 150 Class 300 Class 600 Class 900 Class 1500 Class 2500 MSS SP-44 / API 605
