Flangs

High-Performance Pipe Flanges by AIO OIL – Precision, Strength & Reliability You Can Trust

In the world of industrial piping systems, pipe flanges play a crucial role. They are more than just connectors—they are the critical points where strength, sealing capability, and safety come together. At AIO OIL, we engineer and supply flanges designed to perform in the most demanding environments, ensuring leak-proof connections and long-lasting reliability for oil, gas, petrochemical, and industrial applications.

Why AIO OIL Flanges Stand Out

When it comes to flanges, even the smallest flaw can lead to major downtime, costly repairs, or operational hazards. That’s why AIO OIL’s flange solutions are manufactured with uncompromising quality standards, advanced machining technology, and precision engineering.

Here’s what makes our flanges the preferred choice for industry leaders:

Wide Size Range

From ½ inch for small-scale piping to 96 inches for heavy-duty industrial pipelines.

Material Flexibility

Carbon steel, stainless steel, alloy steel, duplex steel, and specialty metals to match your fluid type, temperature range, and pressure rating.

Superior Sealing Performance

Available in flat face, raised face, and Ring Type Joint (RTJ) facing for maximum leak prevention.

Pressure & Temperature Resilience

Designed for high-pressure and extreme temperature applications, from cryogenic LNG plants to high-heat refineries.

U.S. Based Reliability

With warehouses in New York, Arizona, Texas, and Ohio, we ensure faster delivery across the United States.

Flanges for Every Application

Weld Neck Flanges

  • Best for: High-pressure, high-temperature systems.
  • Advantages: Long tapered hub provides strength, reduces stress concentration, and ensures a smooth bore for improved fluid flow.
  • Common Use: Oil refineries, offshore drilling rigs, and chemical processing plants.

Slip-On Flanges

  • Best for: Moderate pressure applications.
  • Advantages: Easy alignment during installation, cost-effective compared to weld neck flanges.
  • Common Use: Water pipelines, low-pressure steam lines, and general industrial piping.

Lap Joint Flanges

  • Best for: Systems requiring frequent dismantling for inspection or cleaning.
  • Advantages: Can rotate around the pipe, simplifying bolt alignment; ideal with stub ends.
  • Common Use: Food processing, pharmaceutical plants, and shipbuilding.

Threaded Flanges

  • Best for: Low-pressure, non-welded connections.
  • Advantages: Quick installation without welding, perfect for flammable environments where welding is risky.
  • Common Use: Compressed air systems, natural gas pipelines, and small-scale industrial setups.

Socket Weld Flanges

  • Best for: Small-diameter, high-pressure pipes.
  • Advantages: Strong, leak-proof joints; smooth bore improves flow efficiency.
  • Common Use: Hydraulic and chemical processing pipelines.

Blind Flanges

  • Best for: Sealing off pipe ends or pressure vessel openings.
  • Advantages: Easy to remove for maintenance; allows future expansion of the system.
  • Common Use: Pressure testing lines, equipment maintenance access points.

Industries We Serve

Our flanges are trusted across multiple industries:

  • Oil & Gas Exploration and Production

    Rugged performance in onshore and offshore drilling environments.

  • Petrochemical & Refining

    High-temperature and high-pressure flanges for critical refinery operations.

  • Power Generation

    Supporting steam, gas, and renewable power plants.

  • Marine & Offshore

    Corrosion-resistant flanges for harsh saltwater conditions.

  • Water Treatment

    Durable solutions for municipal and industrial water systems.

Quality & Compliance

All AIO OIL flanges are manufactured and tested according to international standards such as ANSI, ASME, API, and ASTM. Our quality control team ensures each flange meets precise dimensional tolerances, mechanical properties, and surface finish requirements. Non-destructive testing (NDT), ultrasonic inspection, and hydrostatic testing guarantee performance before products leave our facility.

The AIO OIL Advantage

  • Technical Expertise

    Decades of combined experience in the oil, gas, and industrial piping sectors.

  • Custom Solutions

    Special coatings, corrosion-resistant alloys, and non-standard sizes available on request.

  • Fast Delivery

    Thanks to our strategically located U.S. warehouses, we minimize lead times and keep your projects on schedule.

  • Competitive Pricing

    High-quality products at market-competitive rates without compromising safety or durability.

Sustainability & Responsibility

We are committed to responsible manufacturing, minimizing environmental impact through waste reduction, energy-efficient machining, and sourcing eco-friendly materials where possible. By extending the lifespan of piping systems with durable flanges, we help reduce material waste and operational downtime.

Get the Right Flange – Delivered Fast

From small maintenance jobs to large-scale oil & gas infrastructure projects, AIO OIL is your trusted partner for dependable flange solutions. Our technical sales team can assist with material selection, pressure rating calculations, and compliance documentation to ensure your project runs smoothly.