Overview
Hebei Nuoan Pipeline Equipment is a China flange manufacturer based in Mengcun, Cangzhou, Hebei Province — the heart of China's pipe fittings and flange industry. We produce and export forged steel flanges for global EPC contractors, distributors and project buyers who need ASME B16.5, ASME B16.47, DIN and EN 1092-1 compliance with factory-direct pricing, MTC traceability and 24-hour RFQ response.
This page summarizes our flange manufacturing scope, standards, materials and how to request a technical-commercial quotation. For detailed process and inspection guidance, see our related technical articles linked below.
Flange Types We Manufacture
| Type | Typical standard | Materials | Common applications |
|---|---|---|---|
| Weld neck flange | ASME B16.5, EN 1092-1 | A105, A182 F304/F316, A350 LF2 | Oil & gas, petrochemical, power |
| Slip-on flange | ASME B16.5, DIN | Carbon steel, SS304/SS316 | General piping, water treatment |
| Blind flange | ASME B16.5, DIN | Forged or plate | Isolation, hydro test, maintenance |
| Plate flange | ASME B16.5, EN 1092-1 | Carbon steel | Low-pressure utility lines |
| Threaded flange | ASME B16.5 | Carbon steel, stainless | Small-bore, instrument lines |
| Socket-weld flange | ASME B16.5 | Carbon steel, stainless | Small-bore high-pressure piping |
| Lap joint flange | ASME B16.5 | Carbon steel, stainless | Systems requiring frequent dismantling |
Browse the full China flange manufacturer catalog or jump to product pages:
Standards and Materials
We manufacture to ASME B16.5 (NPS 1/2–24, Class 150–2500), ASME B16.47 (large diameter), DIN EN 1092-1, GB/T 9112–9124 and project-specific drawings. Common materials include ASTM A105, A350 LF2, A182 F304/F316/F321, A694 and customer-specified grades.
Each order can include:
- Material test certificates (MTC) per EN 10204 3.1/3.2
- Dimensional inspection reports
- PMI, UT or other NDT when specified
- RF, FF or RTJ facing per project requirement
- Export packing and marking to destination rules
Why Source Flanges from Our China Factory
- Factory direct in Mengcun, Hebei — no trading markup
- Integrated supply — flanges, pipe fittings, valves and steel pipes from one manufacturer
- OEM/ODM — custom drilling, special facing, non-standard sizes
- Quality system — ISO 9001, batch heat traceability
- Global export — 50+ countries, project packing experience
FAQ
What should I include in a flange RFQ?
Provide flange type, nominal size, pressure class, material grade, facing (RF/FF/RTJ), bore and schedule, quantity, applicable standard and edition, required tests, documentation level, coating or preservation, and destination port.
Do you supply both carbon steel and stainless steel flanges?
Yes. We supply carbon steel flanges (A105 and equivalents), low-temperature grades (A350 LF2) and stainless steel flanges (A182 F304, F316 and other grades) with MTC traceability.
Can you manufacture to ASME B16.5 and EN 1092-1 on the same order?
Yes. Specify the governing standard per line item or tag. Mixed-standard projects are common for export packages.
How quickly can you respond to an inquiry?
We aim for a technical-commercial response within 24 hours on standard flange ranges. Custom forgings may require drawing review.
Next Steps
Send your flange list or drawing with material grade, standard and edition, size, pressure class, quantity, service conditions, inspection requirements, documentation list, coating, packing and destination. Hebei Nuoan can review manufacturability and prepare a quotation for your project.
Contact us for a quote · View China flange catalog
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