Kolkata Pipe Fittings is an Outstanding Long Radius Bend Manufacturers, Suppliers, Dealers, Stockists and Traders in Kuwait. A long radius bend (LR Bend) is a pipe fitting that is applied in order to change the direction of flow of a piping system with smooth curvature and a low pressure loss. The distinguishing characteristic of long radius bend is that the centerline radius is 1.5 times the nominal pipe diameter (1.5D) which allows a smooth transition in direction of flow as opposed to a short radius bend.
What is Long Radius Bend?
A Long Radius Bend is a pipe fitting that alters the flow direction of fluids, and the curvature radius is higher than that of a short bend. Long Radius Bend Suppliers in Kuwait has a radius of curvature that is 1.5 times the nominal pipe diameter (1.5D). This Long Radius Bend reduces the friction, pressure drop and flow resistance and is therefore suitable whereby smooth flow and less stress on the piping system is needed.
Types of Long Radius Bend
Being the Brilliant Long Radius Bend Manufacturers in Kuwait, we are providing the best quality of Long Radius Bend such as:
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45° Long Radius Bend: A 45 long radius bend is normally utilized in cases when a slight directional shift is needed in the piping system. Long Radius Bend Suppliers in Kuwait enables the fluid to pass through without forming turbulence or having a significant impact on the velocity of the flow. PVC Gasketed Sewer 45˚ Long Radius Bend This kind of bend is mainly used in applications, which require low pressure drop and smooth flow transitions.
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90° Long Radius Bend: Sewer Bend 90 Degree Long Radius is the most popular long radius bend (90 degrees) which is intended to give a right turn to the pipeline and achieve the uninterrupted and constant flow of fluid. 90° Elbow Long Radius It is used to minimize turbulence over short radius bends and is used in high pressure systems that use sharp turns.
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180° Long Radius Bend (Return Bend): A return bend (also called a 180-degree long radius bend) is required in cases where the flow direction has to be turned 180 degrees within a small piping layout. It is useful in keeping pressure loss levels low in closed-loop systems and is used in heat exchangers, boiler plants, and power plants.
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3D Long Radius Bend: A bend radius of 3D (long radius bend) is three times the nominal pipe diameter which provides additional smooth flow of flow in 90 degree turns. Extra Long Radius Bends 3D & 5D it is normally applied in the petrochemical industries and Long Radius Steel Elbows offshore drilling systems where flow resistance is essential to keep at a low level.
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5D Long Radius Bend: The 5D long radius bend has a bend radius that is five times the pipe diameter ensuring the most fluid transition that is possible. Long Radius Elbows It applies in fast and high pressure processes, e.g. aerospace, nuclear generation, and cryogenic, in which strict flow control and a minimum of turbulence are needed - particularly Long Radius Pipe Bend Product where low temperature fluids like LNG or liquid hydrogen are concerned.
Technical Specifications of Long Radius Bend
We've added below a specialized table of Long Radius Bend in Kuwait that provides further technical specification information:
| Parameter |
Specification |
| Product Type |
Long Radius Bend (LR Bend) |
| Bend Radius |
1.5D (Radius = 1.5 × Nominal Pipe Diameter) |
| Angle of Bend |
15°, 30°, 45°, 60°, 90°, 135°, 180° |
| Material Grades |
ASTM A234 WPB / ASTM A420 WPL6 / ASTM A105 / ASTM A182 F304 / F316 / F321 / Alloy Steel Grades |
| Size Range |
½″ to 48″ (DN15 to DN1200) |
| Standards |
ASME B16.9 / ASME B16.28 / MSS SP-75 / DIN 2605 / ISO 3419 |
| End Connection |
Butt Weld Ends (Beveled as per ASME B16.25) |
| Wall Thickness (Schedule) |
SCH 10 / SCH 20 / SCH 40 / SCH 80 / SCH 160 / SCH XXS |
| Outer Diameter (OD) |
21.3 mm – 1219.2 mm |
| Manufacturing Process |
Seamless / Welded / Hot Induction Bending / Mandrel Bending |
| Surface Finish |
Black Painted / Anti-Rust Oil Coated / Galvanized / Pickled & Passivated |
| Testing & Inspection |
Hydrostatic Test / Radiographic Test / Ultrasonic Test / Visual & Dimensional Inspection |
| Pressure Rating |
Up to Class 6000 (depending on material & thickness) |
| Temperature Range |
–45°C to +600°C (material-dependent) |
| Hardness |
≤ 197 HB (for ASTM A234 WPB) |
| Tensile Strength |
≥ 415 MPa |
| Yield Strength |
≥ 240 MPa |
| Elongation |
≥ 20% |
| Tolerances |
As per ASME B16.9 (±1% OD / ±0.03 mm wall thickness) |
| Applications |
Oil & Gas, Power, Petrochemical, Water Treatment, HVAC, Process Piping |
Benefits/Features of Long Radius Bend
One of the popular Long Radius Bend Dealers in Kuwait, our all types is made with new and upgraded features inside and gives multiple benefits such as:
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Smooth Flow Transition- Stainless steel Long Radius Bend Allows a gradual change of direction, minimizing turbulence and pressure drop.
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Reduced Flow Resistance- Short radius bend bigger radius (1.5D) provides minimum friction loss which is an increase in fluid efficiency.
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Less Erosion and Corrosion - Light curvature lowers the amount of wear on the internal surfaces due to impact of fluids.
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High Mechanical Strength - Mild Steel Long Bend It is made of hard materials such as carbon steel or stainless steel where high pressure is required.
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Improved Stress Distribution - The long radius will decrease mechanical stress in the fracture region of the pipe allowing improved life of the pipes.
Applications of Long Radius Bend
As popular Long Radius Bend Traders in Kuwait, our all types are used in various types of industrial sectors such as:
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Oil and Gas Industry- Steel Pipe Bend Applied in pipelines to cause smooth direction flow of crude oil, natural gases as well as refined products.
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Petrochemical Plants - Standard pipe bend radius these are fitted in the chemical process lines to deal with corrosive and high pressure fluids.
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Power Generation - Pipe Bend has been used in the power plants with thermal and nuclear power plants, in the steam, condensate, and cooling water lines.
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Water Treatment Plants- Ss Long Radius Bend is applied in water distribution and filtration systems to minimize the loss of pressure and effective flow.
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Pharmaceutical and Food Processing – SS Long Radius Guarantees free passage of liquids and gases without contamination.
Why choose us?
Kolkata Pipe Fittings is a trusted of high-quality Long Radius Bend Stockists in Kuwait. Here’s why we stand out:
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Premium Quality Material: Our carbon steel and alloy are of high grade to achieve superior strength, resistance and corrosiveness permeating each bend.
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Precision Engineering: Our modern production plant and sophisticated forming processes ensure correct dimensions, free flow lines and stable functioning.
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Wide Range of Options: Provided in different sizes, thickness, and angles (30, 45, 90, and 180 degrees) to meet different industrial requirements and system needs.
Kolkata Pipe Fittings is a Renowned Long Radius Bend Manufacturers, Suppliers, Dealers, Stockists and Traders in Kuwait. Long Radius Bend is a very important element in piping system that facilitates the movement of any fluid in a smooth and efficient path that is associated with minimum pressure drop. Its 1.5D curvature offers an improved stress distribution, less turbulence and improved the life of the pipeline. It is strong, durable, and versatile which has made its application common in industries like oil and gas, power, petrochemical and water treatment.
