Weld neck flanges excel in high-pressure/temperature pipelines. The weld neck flange’s tapered hub reduces stress in oil/gas systems. Full-penetration welds make weld neck flanges leak-proof for PN16-PN420 ratings.
RTJ/grooved-face weld neck flanges (ASME B16.5) suit sour service (NACE MR0175). Long-neck weld neck flanges minimize turbulence in cryogenic applications. All weld neck flanges include PMI test reports.
| DN10 (3/8 ") | DN15 (1/2 ") | DN20 (3/4 ") | DN25 (1 ") | DN40 (1-1 / 2/2 ") |
| DN50 (2 ") | DN80 (3 ") | DN100 (4 ") | DN125 (5 ") | DN150 (6 ") |
| DN200 (8 ") | DN250 (10 ") | DN300 (12 ") | DN350 (14 ") | DN400 (16 ") |
| DN450 (18 ") | DN500 (20 ") | DN550 (22 ") | DN600 (24 ") |
