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 · On Request
Blind Flange RTJ
Blind flanges close off pipeline ends, vessel nozzles and wellhead outlets so lines can be isolated, pressure-tested and maintained safely. Our RTJ blind flanges carry a precision-machined ring groove for a metal-to-metal seal that holds at full system pressure, and are sourced to ASME B16.5 and API 6A in A105, LF2 and stainless grades. Raised-face and flat-face versions, hubbed blinds for frequent test points and custom thicknesses are all available on order. Tell us your line size and class — we will source the right blind with certificates.
Technical Specifications
| Standard | ASME B16.5 / API 6A |
|---|---|
| Type | Blind flange, RTJ facing |
| Size Range | NPS 1/2 to 24 · 2-1/16 in to 21-1/4 in (API) |
| Pressure Rating | Class 150 to 2500 · 2,000 to 15,000 PSI (API) |
| Ring Groove | R, RX and BX ring grooves |
| Materials | ASTM A105, A350 LF2, A182 F316 |
| Application | Pressure isolation, hydro-testing, blanking |
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