API 6A Weld Neck Flange 5000 PSI
API 6A weld neck flange for 5,000 PSI wellhead and flowline service — A105, LF2 and F52 materials, sizes 1 in to 26 in, RF, RTJ and BX facings.

API Standard Flanges · Custom Manufacturing
Ring type joint flanges sourced to API 6BX for pressure systems that cannot rely on soft gaskets. The precision-machined groove and metal BX ring form a pressure-energised seal that holds under vibration, thermal cycling and high differential pressure. Supplied in A105 and LF2 grades with matching ring gaskets available on the same order, and custom machining for non-standard bores at our own workshop. Tell us your size and pressure class and we will source the complete, certified flange set for you.
| Standards | API 6BX, ASME options |
|---|---|
| Connection | Ring Type Joint |
| Availability | Custom Manufacturing |
API 6A weld neck flange for 5,000 PSI wellhead and flowline service — A105, LF2 and F52 materials, sizes 1 in to 26 in, RF, RTJ and BX facings.
API companion flange with threaded bore for wellhead and pipeline connections — A105 and LF2, 2,000 to 15,000 PSI, RF and RTJ facings.
RTJ blind flange for pressure isolation, hydro-testing and blanking — ASME B16.5 and API 6A, Class 150 to 2500, A105, LF2 and stainless.