Dhanratan Steel Industries is a distinguished manufacturer that supplies high-quality flange couplings. Being an organization that is committed to providing quality products, we present a variety of flange couplings that can be used in different industries. Our products are long lasting, dependable and outperform all other products in the market. The modern equipment and qualified employees guarantee that all the products we offer conform to the highest quality. Our company is committed to the satisfaction of our customers and strive to improve the services we provide.

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Our flange couplings are designed to give a positive and rigid connection between shaft, and thus minimize power loss and time. Manufactured from high-quality materials, our couplings are suitable for applications where high loads and extreme operating conditions are expected. They come in different sizes and arrangements to suit various uses, such as in machinery, pumps, and automobiles. Flange couplings are commonly used in manufacturing industries, construction industries and automobile industries. Our flanges are suitable for joining shafts in equipment such as conveyors, compressors, and generators where torque transfer is important.

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The flange couplings are produced according to the international standards and have relevant certificates. We have accreditations that assure our customers of our ability to produce goods that are standard in the market. We have a good price policy without affecting the quality of the products. Our pricing policy is clear and we always aim at giving you the best value for your money. We deliver our products on time to meet your project deadlines and we do not compromise on quality. Select us as your supplier of flange couplings that are strong, accurate and durable to enable your operations to be effective and efficient.

Stainless Steel Flange Coupling
Monel Flange Coupling
Hastelloy Flange Coupling

Flange Coupling Specification

Specification Description
Type Fixed Flange Couplings, Floating Flange Couplings, Split Flange Couplings
Material Carbon Steel, Stainless Steel, Alloy Steel, Cast Iron, Bronze
Size Range 1 inch to 24 inches, depending on the coupling type
Pressure Rating 150 psi to 3000 psi, depending on material and design
Temperature Range -50°C to 400°C, varying based on material and application
Bolt Size M12, M16, M20, M24, M30, and larger, depending on coupling size
Number of Bolts 4, 6, 8, or more, depending on size and pressure rating
Face Type Flat Face, Raised Face, RTJ (Ring Type Joint)
Flange Standards ANSI, DIN, JIS, or custom standards
Finish Machined, painted, galvanized
Dimensions Outer diameter, bolt hole spacing, flange thickness
Equipment Pipelines, machinery, pumps, etc.
Test Certificates Material test reports, pressure tests, dimensional checks

Flange Coupling Chemical Composition

Material Chemical Composition
Carbon Steel C: 0.12-0.21%, Mn: 0.60-0.90%, Si: 0.15-0.35%, P: ≤0.035%, S: ≤0.035%
Stainless Steel (304) C: ≤0.08%, Cr: 18.0-20.0%, Ni: 8.0-10.5%, Mn: ≤2.00%, Si: ≤1.00%
Stainless Steel (316) C: ≤0.08%, Cr: 16.0-18.0%, Ni: 10.0-14.0%, Mo: 2.0-3.0%, Mn: ≤2.00%, Si: ≤1.00%
Alloy Steel (AISI 4140) C: 0.38-0.43%, Cr: 0.80-1.10%, Mn: 0.75-1.00%, Mo: 0.15-0.25%, Si: 0.15-0.35%
Cast Iron C: 2.5-4.0%, Si: 1.0-3.0%, Mn: 0.5-1.0%, P: ≤0.12%, S: ≤0.12%

Flange Coupling Mechanical Properties

Material Property Value
Carbon Steel Yield Strength 250 MPa (approx.)
Carbon Steel Tensile Strength 400-550 MPa
Carbon Steel Elongation 20% (min)
Stainless Steel (304) Yield Strength 215 MPa (approx.)
Stainless Steel (304) Tensile Strength 505 MPa
Stainless Steel (304) Elongation 40% (min)
Stainless Steel (316) Yield Strength 290 MPa (approx.)
Stainless Steel (316) Tensile Strength 580 MPa
Stainless Steel (316) Elongation 40% (min)
Alloy Steel (AISI 4140) Yield Strength 415 MPa
Alloy Steel (AISI 4140) Tensile Strength 655 MPa
Alloy Steel (AISI 4140) Elongation 20% (min)
Cast Iron Yield Strength 150 MPa (approx.)
Cast Iron Tensile Strength 200-350 MPa
Cast Iron Elongation 1-2%

Flange Coupling Types, Price, and Applications

Type Price (INR) Applications
Fixed Flange Coupling ₹1,000 - ₹5,000 Used in high torque applications where misalignment is minimal. Common in heavy machinery and pumps.
Floating Flange Coupling ₹1,500 - ₹6,000 Ideal for applications with slight misalignment. Used in pumps, compressors, and other rotating equipment.
Split Flange Coupling ₹2,000 - ₹7,000 Suitable for applications requiring easy assembly and disassembly. Common in industrial equipment and pipelines.
Blind Flange Coupling ₹1,200 - ₹5,500 Used to close off the end of a pipeline or vessel. Common in water and wastewater treatment facilities.
Grooved Flange Coupling ₹1,800 - ₹6,500 Utilized in situations where quick assembly and disassembly are required. Used in fire protection systems and HVAC systems.

Notes:

Chemical Composition Table: Lists the elements and their percentages for various materials used in flange couplings.

Mechanical Properties Table: Provides the yield strength, tensile strength, and elongation for these materials, indicating their performance characteristics.

Flange Coupling Industrial Application