Steel Flat Flange

Exclusive technology

1. Cost advantage over the entire life cycle

Cost item Traditional forged steel flange Steel Flat Flange Pro Savings ratio

30-year total cost of ownership $18,500 $6,200 ↓66%

Single replacement time 8 hours 2.5 hours ↓69%

Annual maintenance frequency 3.2 times/year 0.7 times/year ↓78%

2. Breakthrough in ultimate pressure bearing performance

Parameter National standard flange Steel Flat Flange Pro Exceeding range

Cyclic fatigue life 5,000 times @25MPa 20,000 times @35MPa 300%

Axial deformation (35MPa) 1.8mm 0.6mm ↓67%

Burst pressure (DN300) ≤15MPa 42MPa 180%

Core technology: Built-in titanium alloy reinforcement ring in flange neck, yield strength up to 1,250MPa

3. Ability to resist non-uniform loads

In Under the condition of 15° pipeline misalignment, the traditional flange in the eccentric load test is greater than 10⁻³, while the sealing leakage rate remains ≤10⁻⁵ mbar·L/s

Structural innovation: The radial reinforcement rib design on the back of Steel Flat Flange reduces local stress concentration by 48%

Vibration suppression: Amplitude attenuation rate 92% (ISO 10816-3 standard, frequency band 50-200Hz)

Solve the bolt relaxation caused by high-pressure pulsation

Intelligent wear warning: The sealing surface is embedded with a nano-zirconia wear indicator layer, and the color change prompt can be seen by the naked eye when the thickness is less than 0.1mm

Preload locking technology: Using a double-conical bolt hole, the preload of the traditional structure is attenuated by ≥20% under a pressure fluctuation of 35MPa, while the Steel Flat Flange is attenuated by ≤5%

Adaptability to extreme environments

Environment Performance Test standard

Low-temperature impact (-70℃) Charpy impact energy 89J (national standard ≥34J) GB/T 229-2020

Deep sea corrosion (5,000m) 30-year equivalent corrosion rate 0.03mm/year ASTM G111-97

Sand and dust wear (120m/s) Sealing surface damage depth ≤8μm (10,000h) ISO 5890:2012