When reliability matters in high-pressure systems, Blink Flanges deliver unmatched performance. As a leading manufacturer with 15+ years of expertise, we specialize in ASME, API, and EN-certified flanges trusted by oil refineries, chemical plants, and water treatment facilities worldwide. Our products combine rigorous quality control, global compliance, and scalable production to meet your project’s exact needs—whether you’re sealing a ½" laboratory line or a 144" offshore pipeline.
The products are precision-machined connectors designed to maintain integrity under pressures up to CLASS 2500 and temperatures ranging from -196°C to 800°C. Available in carbon steel, stainless steel (304/316/L), duplex, and super duplex materials, they’re built to resist corrosion, erosion, and stress cracking in aggressive environments like sour gas processing or marine installations.
| STANDARD | TYPE | SIZE | PRESSURE |
| ASME B16.5 | WN, SO, SW, BLD, THREADED, LP | 1/2" ~ 24" | CLASS 150 ~ 2500 |
| ASME B16.36 | WN, SO, THREADED | 1/2" ~ 24" | CLASS 300LB ~ 2500 |
| ASME B16.47 | WN BLD | 26" ~ 60" | CLASS 75 ~ 900 |
| ASME B16.48 | SPECTACLE BLANKS, SPADES, RING SPACERS | 1/2" ~ 24" | CLASS 150 ~ 2500 |
| AWWA C207 | STEEL RING, BLD, STEEL HUB | 4" ~ 96" | 86 ~ 275 PSI |
| API 6A | WN, BLD, THREADED, INTEGRAL, TEST | 2-1/16" ~ 20-3/4" | 13.8 MPa ~ 138.0 MPa |
| API 605 | WN | 26" ~ 60" | CLASS 150 ~ 900 |
| SANS 1123 | WN, PLATE, SCREWED, SO, LOOSE, BLANK, INTEGRAL | DN 10 ~ 3600 | 250 ~ 4000 kPa |
| AS 2129 | BLD, PLATE, BOSS, WN | DN15 ~ 1800 | TABLE A ~ TABLE T |
| BS 3293 | SO, WN | 26" ~ 48" | CLASS 150 ~ 600 |
| BS 4504 | PLATE, LOOSE, BLANK, WN, SO, THREADED, WO PLATE, INTEGRAL | DN 10 ~ 4000 | PN 6 ~ 40 |
| EN 1092-1 | PLATE, LOOSE, BLIND, WN, SO, THREADED, WO PLATE, INTEGRAL | DN 10 ~ 3600 | PN 6 ~ 400 |
| JIS B2220 | SOP, SOH, SW, WN, LJ, TR, IT, BL | DN 10 ~ 1500 | 5 ~ 63 K |
| MSS SP-44 | BLD, WN | 12" ~ 60" | CLASS 150,19.6bar ~ CLASS 900, 153.1 bar |
Choose from 15+ materials including A350 LF2 for cryogenic applications or F55 super duplex for seawater resistance. All flanges undergo PMI testing to verify alloy composition.
RTJ, RF, or FF facings are machined to 125-250 µin Ra smoothness, ensuring perfect seal alignment with gaskets and valves.
Need non-standard bore sizes? Require PTFE coating? Our OEM team can prototype custom Blink Flanges in 72 hours.
Pre-certified with ASME Section IX, PED 2014/68/EU, and NACE MR0175—accelerating your project approvals.
Every flange undergoes three checks:
1. Ultrasonic Testing: Detects subsurface defects
2. Dimensional Scan: Verifies ±0.1mm tolerance
3. Coating Inspection: Ensures 8-mil DFT protection
With 5,000+ tons of raw material in stock and 50 CNC machines, we ship 95% of orders within 30 days—packed in climate-controlled crates with ISO 2859-1 inspection reports.



Q: Can you match legacy flange designs from discontinued suppliers?
A: Yes! Send drawings for reverse-engineering.
Q: Do you provide traceable material certificates?
A: Full MTCs with heat numbers included.
Q: What's the MOQ for custom products?
A: Just 10 units for prototyping.
Q: How are flanges protected during ocean shipping?
A: VCI paper + desiccant capsules + steel-strapped pallets.
Email info@sxqinsteel.com for Blink Flanges:
Serving ExxonMobil, Shell, and 200+ global partners since 2008.
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