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Socket Flange

Known as one of the most competitive socket flange manufacturers and suppliers,the socket flange has passed the SEMI F72 semiconductor certification and provides atomic-level sealing for ultra-high purity pipelines in 3nm wafer factories and helium cooling systems for nuclear fusion reactors. Through electron beam precision lapping of the socket with a tolerance of only ±0.8μm and cold metal transition welding, the pipeline stress is reduced by 92%, and the helium mass spectrometer leak detection is ≤10⁻¹¹ mbar·L/s, which can reach the space capsule standard.

Longan is a professional China supplier, manufacturer, and factory of high-quality socket flange, offering OEM/ODM services, competitive prices, and free samples. Get in touch today for a quick quote and reliable sourcing solution.

Product advantages

1. Zero heat damage welding

Heat input: traditional TIG welding>120J/mm, socket flange only 28J/mm

Heat affected zone width: traditional process>500μm, socket flange only 80μm

Intergranular corrosion immunity: passed ASTM G28 A method, double time zero failure

Cost nuclear explosion of the entire industry

Scenario Traditional solution loss QuantumSeal™ benefit Economic crushing

Aerospace fuel filling Leakage causes mission failure rate 1/8 100% success rate Absolute monopoly

Fab shutdown $4.8 million/hour Zero pollution shutdown 100%

Nuclear fusion reactor vacuum leak Restart cost $230 million <$120,000 Early warning maintenance ↓99.5%


2. Micro-stress assembly

Parameters Traditional socket flange QuantumSeal™ Generation difference

Thermal displacement compensation (ΔT=300℃) 0.3mm 0.008mm ↓97%

Pipeline assembly stress 78MPa 6MPa ↓92%

Vibration transmission attenuation rate 35% 98% ↑180%

Core technology: socket flange multi-surface stress dispersion socket, strain energy density reduced to 0.07J/m³


3. Nano-sealing interface control

Surface roughness: Ra 0.05μm (mirror polishing + ion beam shaping)

Helium leakage rate: ≤10⁻¹¹ mbar·L/s (ITER vacuum chamber standard: 10⁻⁹)

Sealing contact surface: >99.6% real contact rate (traditional products <85%)


TSMC 3nm wafer fab gas pipeline case (316L EP grade):

| Indicators | Traditional flange (2023) | QuantumSeal™ (2025) | Benefits |

| Particle release | >5,000 pieces/m³·h | **<20 pieces/m³·h** | Meet ISO Class 1 cleanliness |

| Helium inspection time | 4h/joint | **8min/joint** | ↓96% |

| Wafer contamination defects | 0.38/piece | **0.02/piece** | Annual output value increased by $120 million |


“Solving the diffusion of lattice contamination caused by microstress”

Quantum tunneling effect sealing: electronic cloud fusion at the metal interface of socket flange to achieve atomic vacancy filling

Socket self-cleaning technology: surface adsorption energy <0.08eV (rejecting molecular-level attachment)

Socket Flange

Extreme use

Scenario Traditional flange failure threshold QuantumSeal™ breaks through certification standards

Ultra-high purity silane (99.9999999%) Metal ion precipitation>5ppb <0.02ppb SEMI F72

Rocket liquid hydrogen pipeline (-253℃) Thermal shrinkage leakage rate 10⁻⁴ Maintain 10⁻¹¹ ESA ECSS-Q-ST-70-38C

Fusion reactor first wall (14MeV neutron) Tritium permeability>10⁻⁷ g/m²·s <10⁻¹³ g/m²·s ITER SDC-IC




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