Threaded Flange

Our advantages

1. Dynamic anti-loosening beyond ASTM standards

Test scenario Traditional threaded flange LockThread™ Improvement

Seismic wave (0.5g PGA) Thread jump rate 27% 0 jump 100%

Thermal cycle (-50℃↔150℃) Leakage rate 10⁻³ mbar·L/s ≤10⁻⁷ mbar·L/s 4 orders of magnitude

Axial vibration (30Hz×8h) Preload attenuation 38% Attenuation ≤2% ↓95%

Core structure: 30° wedge-shaped locking surface + self-compensating elastic thread (anti-fretting wear life＞20 years)

2. Improved installation efficiency

Comparison of threaded flange installation at shale gas wellheads in North America (n=200 groups):

| Steps | Welded flange | LockThread™ | Save resources |

| Energy consumption | 18kW·h (welding) | **0.5kW·h** | ↓97% |

| Single group installation time | 45 minutes | **8 minutes** | ↓82% |

| Personnel qualification requirements | 2 certified welders | 1 ordinary technician | Labor cost↓60% |

⇒ CO₂ reduction of **4.8 tons** per 100 groups (equivalent to planting 267 trees)

3. Maintenance-free extreme adaptability

Anti-corrosion black technology: thread impregnation PTFE-graphene composite paste, salt spray corrosion rate 0.001mm/year, 500 times higher than the national standard

Solid medium erosion resistance: In 30% sand + crude oil two-phase flow, thread wear ＜0.01mm/year

Ultra-low temperature sealing guarantee: thread bite strength at -196℃ (LNG working condition) increased by 22%

Carbon neutral economic efficiency

Indicator Welding flange LockThread™ Green benefits

Certification: Threaded Flange has obtained the UL ECV environmental product label and meets the EU carbon border tax (CBAM) exemption standard

Harmful smoke Welding slag + metal vapor Zero pollution Avoid OSHA fines

Single group CO₂ emission 86kg 12kg ↓86%

Scrap recovery value Residual value rate 30% Residual value rate 95% ↑217%

Certification: Obtained the UL ECV environmental product label and met the EU carbon border tax (CBAM) exemption standard

Solve the progressive failure of threads caused by vibration

Harmonic cancellation principle: Threaded Flange thread lead is designed to be 1/2 wavelength of the main frequency of pipeline vibration (ANSYS modal optimization), and the resonance energy is attenuated by 90%

Extreme performance boundary

Environment Breakthrough performance Certification standard

Space vacuum (10⁻⁶Pa) Helium leakage rate <1×10⁻⁹ mbar·L/s ESA ECSS-Q-ST-70-38C

Deep sea swing (30° inclination) 10⁷ cycles zero structural fatigue DNV-OS-F101

Sour gas (H₂S 50ppm) 20 years no sulfide stress cracking NACE TM0177-A

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