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Alloy Steel Orifice Flanges

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Alloy Steel Orifice Flanges

EBY Fasteners provides precision-engineered alloy steel orifice flanges for accurate flow control and measurement in demanding piping systems. Choose from a range of alloy steels, including low-alloy for strength and moderate temperature service, stainless steels for corrosion resistance, and specialized high-alloy grades for extreme environments. These flanges ensure reliable performance and longevity
Manufactured in accordance with industry standards, EBY Fasteners’ alloy steel orifice flanges feature precise dimensions and tolerances. This guarantees compatibility with your piping system and accurate integration of orifice plates for reliable flow measurement. Their commitment to quality means these flanges undergo rigorous inspection to ensure accuracy and performance
Ideal for applications within oil and gas, chemical processing, power generation, and other industries where precise flow control is crucial, EBY Fasteners’ alloy steel orifice flanges offer a robust and accurate solution. Experience the benefits of quality materials, meticulous manufacturing, and a dedication to meeting your flow measurement needs
Ideal for applications within oil and gas, chemical processing, power generation, and other industries where precise flow control is crucial, EBY Fasteners’ alloy steel orifice flanges offer a robust and accurate solution. Experience the benefits of quality materials, meticulous manufacturing, and a dedication to meeting your flow measurement needs
  • Low-Alloy Steels (F5, F9, F11, F22) : These grades are like the all-around athletes of orifice flanges. They have a good balance of strength, toughness, and some resistance to elevated temperatures. The increasing numbers (F5 to F22) indicate higher amounts of chromium and molybdenum, improving their ability to handle heat and pressure. They're a common choice where extreme corrosion isn't a major concern but you need more strength than basic carbon steel.
  • Stainless Steels (F304/304L, F316/316L) : Think of stainless steels as the "corrosion fighters." They pack in a high amount of chromium, forming a protective oxide layer that resists rust and many chemicals. F304/304L are the most versatile stainless grades, while F316/316L have added molybdenum for even better resistance to pitting corrosion in harsh environments. You'll see these in chemical plants, food processing, or any application where the fluids are potentially damaging to regular steel.
  • High-Alloy Steels : Calling these "high-alloy" is a bit generic; it's a catch-all for super specialized steel grades. Think of them like the elite task force brought in for niche missions. You've got duplex and super-duplex stainless steels for marine environments, high chromium grades for extreme temperature service in power plants, and various others designed for very specific combinations of corrosion and temperature challenges
  • Standards : (ANSI B16.5, ASME B16.36, MSS SP44, etc.) Standards are the blueprints for consistency across manufacturers and applications. ANSI and ASME are heavyweights in the US; they establish dimensional standards ensuring the flange fits your pipes. MSS SP44 complements this with specific pipe wall thickness guidelines. Older standards like ASA and API-605 still exist for legacy systems or specific industries.
  • Size :(1/2" to 48" NB) Orifice flanges cater to a massive range of pipe sizes. The "NB" (Nominal Bore) is the approximate inner diameter of the compatible pipe. This wide range means they can regulate flow in anything from small-scale process piping to huge pipelines found in power generation or refineries.
  • Pressure Rating : (Class 150, Class 300, etc.) This is a safety parameter. Each class tells you the maximum pressure the flange handles at a given temperature. Imagine it like a weight limit on a bridge. Common classes like 150 and 300 cover many applications, while the higher numbers (600, 900, etc.) cater to extreme high-pressure systems crucial in specific industries.
  • Flange Facing :(Raised Face, Ring-Type Joint) This is all about sealing. Raised Face provides a slightly elevated surface for better gasket compression. Ring-Type Joint (RTJ) uses a specialized groove with a metallic ring-shaped gasket for extreme high-pressure applications where perfect sealing is critical.
  • Orifice Bore :(Custom Calculated) This isn't a standard dimension! The precise hole size in the center of the flange is meticulously calculated to achieve the desired flow restriction and pressure drop needed for accurate flow measurement. This customization highlights the unique function of orifice flanges
  • Precision Flow Control : The carefully calculated and machined orifice bore creates a specific restriction within the pipeline. This restriction, combined with pressure measurements, allows for highly accurate flow rate determination in various industrial processes.
  • Versatility : Alloy steel orifice flanges come in a vast range of sizes, pressure ratings, and material grades. This adaptability means they can be integrated into piping systems handling diverse fluids, pressures, and temperatures.
  • Durability : Alloy steels offer inherent strength and toughness. When the right grade is selected, the orifice flange can withstand the abrasive effects of some fluids, high pressures, and temperature variations, ensuring long service life.
  • Corrosion Resistance : Especially with stainless and high-alloy grades, orifice flanges can exhibit outstanding resistance to a wide range of chemicals. This makes them indispensable in the chemical, petrochemical, marine, and food processing industries, protecting the flow measurement system itself from degradation.
  • Maintainability : While not always the primary reason for their use, orifice flanges can be relatively easy to remove for inspection, cleaning, or replacement of the orifice plate. This facilitates maintenance and ensures long-term measurement accuracy
  • Chemical : The chemical industry handles a vast range of substances – from highly corrosive acids to hazardous compounds. Alloy steel blind flanges, especially stainless steel and high-alloy grades, are crucial for sealing pipelines, isolating sections for safety, and terminating process lines where future modifications may be needed. Their corrosion resistance is paramount in ensuring safe and long-lasting operation.
  • Dairy & Food : Alloy steel blind flanges, particularly those made from stainless steel (like F304 or F316), are essential for maintaining sanitary conditions in dairy and food processing facilities. They're used to securely seal pipelines and equipment during cleaning cycles, enable maintenance, and prevent contamination within complex processing systems. Their resistance to corrosion from both food products and cleaning chemicals is vital.
  • Sugar Mills : Sugar processing involves the transport of hot, syrupy liquids that can be slightly acidic. Alloy steel blind flanges provide reliable sealing, resistance to corrosion, and the ability to handle higher temperatures. They are critical in handling maintenance tasks, cleaning cycles, and managing the flow of sugar throughout the mill.
  • Textile Machinery : Textile production facilities often necessitate the use of dyes, chemicals, and lubricants. Alloy steel blind flanges, depending on the specific substances involved, are utilized to securely terminate pipelines, isolate sections for maintenance, and facilitate the modification of the dye and chemical delivery systems as needed. Their ability to resist varying levels of corrosion is a key feature in this industry.
  • Fertilizers & Pesticides : These industries often handle aggressive chemicals that can rapidly degrade regular steel. Alloy steel blind flanges, especially those designed for corrosion resistance, become indispensable. They offer safe and secure sealing of tanks, pipelines, and processing equipment, protecting both the system and the environment from potential leaks and failures

Chemical Composition

ElementPercentage
Carbon (C)0.15 - 0.30
Manganese (Mn)Range (0.30 - 0.60)
Silicon (Si)Range (0.15 - 0.50)
Chromium (Cr)Range (0.40 - 0.80)
Nickel (Ni)Range (10.00 - 14.00)
Molybdenum (Mo)Range (0.45 - 0.65)

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