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Forged Blind Flanges
Forged Blind Flanges
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This page covers forged blind flanges supplied for piping and pressure equipment service in multiple international standards. Blind flanges are commonly used to close the end of a pipeline, nozzle, or vessel opening while maintaining the required pressure rating. We support standard and custom blind flange production with optional materials, facing types, and dimensions suited to project drawings and industrial specifications. In service, this flange type is mainly used for line closure, nozzle closure, or pressure-end sealing, so customers commonly pay more attention to facing condition, pressure rating, thickness, and marking than to bore details. For project applications, forged blind flanges can also be supplied with special drilling, additional thickness, or non-standard outside diameters where required by design. The product may be manufactured to common international standards or to drawing when the closure function must match custom equipment or piping layouts.
| Parameter | Description |
|---|---|
| Key Features | Solid construction, flatness control, sealing face accuracy |
| Typical Materials | A105, A182 F11/F22/F316, A350 LF2 |
| Applicable Standards | ASME B16.5, EN 1092-1, DIN, JIS |
| Pressure Class | Class 150 / 300 / 600 / 900 / 1500 / 2500 (ASME) |
| Size Range | 1/2"~60" (DN15~DN1500) |
| Facing Type | RF / FF / RTJ as specified |
| Supply Condition | As-forged / Normalized / Quenched & tempered / Rough machined / Finished |
| Inspection & Docs | EN 10204 3.1 / MTC, UT/MT/PT as required, dimensional report, traceability marking |
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