Flanged Elbow

Teshi Fittings, a leading manufacturer of pipe fittings, offers top-quality Flanged Elbows designed for a variety of industries, including Petroleum, Chemical, Hydraulic, Food, and more. Precisely engineered and meeting international quality standards, our Flanged Elbows ensure efficient directional changes in piping systems. Committed to excellence and customer satisfaction, Teshi Fittings provides durable and high-performance solutions tailored to meet your specific project requirements. Discover the superior quality and reliability of Teshi Fittings’ Flanged Elbows and trust our expertise for all your piping needs.

Standard Specification of Flanged Elbow

DimensionsANSI B16.5, ANSI B16.47 Series A & B, ASA, API-605, MSS SP44, AWWA, Custom Drawings
Size1/2″ (15 NB) to 48″ (1200NB)
Flange Face Types / Connection TypeFlat Face Flange (FF), Raised Face Flange (RF), Ring Joint Flange (RTJ), Lap Joint Flange, Male and Female Flange (M&F), Large and Small Tongue-and-Groove Flange (T&G)
DINDIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
BSBS4504 , BS4504, BS1560, BS10
Class150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Class / Pressure Rating150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Material & Grades of Flanged Elbow

Stainless SteelASTM A-479, A-182, 304, 304L,304H,304S, 316, 316L,316 Ti, 316H, 309, 310, 310S, 317L, 321, 347, 409, 410, 420, 430, 440, 446, 904L. etc.
Duplex & Super Duplex SteelS31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 & ASTM / ASME A/SA 182, A240 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon SteelASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Low Temperature Carbon SteelASTM A350, LF2, LF3
Alloy SteelASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Nickel AlloyNickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II)

Dimension of Flanged Elbow

Size
in.
CLR
Std.
OD
in.
ID
in.
Weight (lbs.)Flange
30°45°60°90°Hgt. (H)
in.
Thk. (T)
in.
ID
in.
B.C.
in.
OD
in.
Bolts
#
Hole Dia.
in.
313.073.001.601.751.601.751.000.12503.064.315.0660.281
413.893.822.002.252.002.251.000.12504.065.316.0660.281
514.914.842.752.802.752.801.000.12505.066.317.0660.281
615.935.863.653.853.653.851.250.12506.097.318.9160.281
716.946.874.804.904.804.901.250.12507.138.509.6360.375
81.57.937.866.877.666.877.661.250.12508.139.5610.6360.375
91.58.928.859.488.459.488.451.250.12509.1310.6311.6360.438
101.59.939.8612.9815.4712.9815.471.250.125010.1311.8112.6360.438
111.510.9210.8515.4917.6015.4917.601.250.125011.1312.7513.6360.438
121.511.9911.9218.6719.3318.6719.331.500.125012.1314.0015.1380.438
131.513.0012.9221.4422.4021.4422.401.500.125013.1315.0016.1380.438
141.513.9913.9124.9225.3924.9225.391.500.125014.1316.0017.1380.438
151.514.9914.9127.8027.9027.8027.901.500.125015.1317.0018.1380.438
161.516.0015.9230.2530.5130.2530.511.500.187516.1318.0019.1380.438
171.517.0016.9233.6932.3033.6932.301.500.187517.1319.0020.1380.438
181.517.9917.9136.8634.6736.8634.671.500.187518.1320.0021.1380.438
201.520.0019.9240.5241.9940.5241.991.500.187520.1321.7523.13120.438
221.522.0121.9345.9546.9045.9546.901.500.187522.1323.7525.13120.438
241.523.9823.958.9570.9658.9570.961.500.187524.1325.8827.13120.438
261.526.0725.9475.0889.1275.0889.122.000.187526.1328.3830.13160.438
281.528.0727.9482.9799.1982.9799.192.000.187528.1330.3832.13160.438
301.530.0629.9491.71110.2691.71110.262.000.187530.1332.3834.13160.438
321.532.0631.94100.23121.38100.231.382.000.187532.1334.3836.13160.438
341.533.9333.06132.18133.52132.18133.522.000.187534.1336.3838.13160.438
361.536.0635.93122.29149.04122.29149.042.000.187536.1338.3840.13160.438
381.538.0837.94132.58162.31132.58162.312.000.187538.1340.3842.13240.438
401.540.0839.94142.99176.20142.99176.202.000.187540.1342.3844.13240.438

Manufacturing process and features of Flanged Elbow

Manufacturing Process of Flanged Elbow :

Material Selection:

  • Choose high-quality materials such as stainless steel, carbon steel, or alloy steel, depending on the application requirements.

Cutting and Forming:

  • The material is cut to the required length using advanced cutting machinery.
  • The cut piece is then formed into an elbow shape using a bending machine or a hydraulic press. The bending process ensures the correct angle and curvature of the elbow.

Flange Formation:

  • Flanges are manufactured separately through processes like forging or casting.
  • The flange faces are machined to ensure a smooth, precise surface that will mate properly with other flanged components.

Welding:

  • The formed elbow and the flanges are joined together using a welding process such as MIG (Metal Inert Gas) or TIG (Tungsten Inert Gas) welding.
  • Welding ensures a strong, leak-proof connection between the elbow and the flanges.

Heat Treatment:

  • After welding, the flanged elbow undergoes heat treatment to relieve stress and enhance mechanical properties like strength and durability.
  • Heat treatment processes include annealing, normalizing, and quenching, depending on the material and application requirements.

Machining:

  • The flanged elbow is machined to achieve precise dimensions and tolerances.
  • Machining includes turning, milling, drilling, and grinding to ensure the elbow meets the specified standards.

Surface Treatment:

  • Surface treatments such as pickling, passivation, or coating (e.g., galvanizing) are applied to enhance corrosion resistance and improve the aesthetic appearance.
  • Surface treatments also ensure the flanged elbow can withstand harsh environments.

Inspection and Testing:

  • The flanged elbow undergoes rigorous inspection and testing to ensure it meets the required standards and specifications.
  • Tests include visual inspection, dimensional checks, pressure testing, and non-destructive testing (NDT) methods like ultrasonic testing or radiographic testing.

Finishing:

  • Final finishing processes include polishing and marking the flanged elbow with relevant details such as size, material, and standards.
  • The finished product is then cleaned and prepared for packaging.

Features of Flanged Elbow:

Angular Diversion:

  • Flanged elbows are designed to change the direction of fluid flow in a piping system, typically at angles of 45°, 90°, or 180°.

Strong Connection:

  • The welded connection between the elbow and flanges ensures a robust, leak-proof joint, suitable for high-pressure applications.

Corrosion Resistance:

  • Depending on the material and surface treatment, flanged elbows offer excellent resistance to corrosion, making them suitable for various environments.

High Pressure and Temperature Tolerance:

  • Flanged elbows are engineered to withstand high pressures and temperatures, making them ideal for demanding industrial applications.

Ease of Installation:

  • The flanged ends facilitate easy installation and alignment with other flanged components, reducing installation time and effort.

Versatility:

  • Available in a variety of materials, sizes, and configurations to suit different applications and requirements.

Dimensional Accuracy:

  • Manufactured to precise dimensions and tolerances to ensure compatibility with other piping components and systems.

Customization:

  • Flanged elbows can be customized to meet specific requirements, such as unique angles, special coatings, or additional features.

Leak-Proof:

  • The flanged connection ensures a secure, leak-proof joint, essential for maintaining system integrity and safety.

Flanged elbows are critical components in piping systems, providing reliable and durable solutions for changing the direction of fluid flow while maintaining the integrity and performance of the system.

Application Of Flanged Elbow

Oil and Gas IndustryPipelines, refineries, and petrochemical plants.
Chemical ProcessingTransporting corrosive and hazardous substances.
Power GenerationBoiler systems, steam lines, and cooling systems.
Water TreatmentFiltration, sedimentation, and distribution processes.
Food and Beverage IndustrySanitary piping for food-grade liquids and dairy products.
Pharmaceutical IndustrySterile and clean piping systems for chemicals and solvents.
HVAC SystemsHeating, ventilation, and air conditioning ducts and piping.
Marine and Offshore ApplicationsShips, offshore platforms, and drilling rigs.
Aerospace and DefenseHydraulic and fuel line connections in aircraft systems.
Automotive IndustryExhaust systems and fluid transfer lines in vehicles.
Mining IndustrySlurry transport, dewatering, and ventilation in mining operations.
Pulp and Paper IndustryTransporting pulp, chemicals, and steam in mills.

Frequently Asked Questions

A flanged elbow is a type of pipe fitting used to change the direction of flow in a piping system. It features flanges at both ends that allow it to be bolted to other flanged components, providing a secure and leak-proof connection. Flanged elbows are typically used in systems where easy assembly and disassembly are required, such as in maintenance or repair situations.

Flanged elbows are available in a wide range of sizes to accommodate different pipe diameters and pressure ratings. Standard sizes are provided, and custom sizes can be manufactured to meet specific needs.

Flanged elbows are installed by bolting the flanges at both ends to matching flanges on the pipes or other components in the system. A gasket is typically placed between the flange faces to ensure a leak-proof seal. Proper alignment and tightening of the bolts are crucial to prevent leaks.

Yes, custom manufacturing solutions for flanged elbows are available to meet specific requirements. Contact us with your detailed specifications, and we will work with you to produce elbows tailored to your needs.

The lead time for flanged elbows depends on the complexity and volume of the order. After reviewing your specifications, we will provide an estimated lead time. We are committed to delivering all projects on schedule while maintaining the highest quality standards.

Yes, flanged elbows are suitable for both liquid and gas applications, provided they are made from appropriate materials and installed correctly to handle the specific conditions of the system, including pressure and temperature.

Flanged elbows are made from a variety of materials, including carbon steel, stainless steel, alloy steel, and other metals. The material choice depends on the specific requirements of the application, such as the type of fluid or gas, temperature, pressure, and environmental conditions.

Flanged elbows are used in a variety of applications across industries, including oil and gas, chemical processing, water treatment, power generation, and more. They are essential for redirecting flow in piping systems, especially in situations where the system needs to be disassembled for maintenance or repairs.

Flanged elbows are manufactured to comply with various industry standards, such as ASME B16.5, ASME B16.47, and other relevant standards. These standards define the dimensions, tolerances, and material requirements to ensure compatibility and reliability in piping systems.

Flanged elbows offer several advantages, including:

  • Easy Assembly and Disassembly: Facilitates quick connection and disconnection for maintenance and repairs.
  • Secure and Leak-Proof: Provides a reliable connection with gaskets and proper bolting.
  • Versatility: Suitable for a wide range of applications and materials.
  • Compatibility: Designed to meet industry standards for seamless integration with existing systems.

Regular inspection of flanged elbows includes checking for signs of wear, corrosion, and damage. It is important to ensure that the flanges and gaskets remain in good condition and that the bolts are securely tightened to prevent leaks.