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Coupling Fittings
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Coupling Fittings

Last Updated: July 18, 2026

Starting From 48Rs/Pcs

A coupling fitting is a mechanical connector used to join two separate pieces of pipe or tubing along a straight path. It works by enveloping the pipe junction and securing the connection through butt-welding, socket-welding, or internal threading. This setup creates an airtight, leak-proof bridge that maintains consistent flow path integrity and cross-sectional stability throughout the line. Couplings are vital for extending pipelines over long distances, adapting line runs with minimal structural disturbance, and introducing branch takeoffs or instrumentation points using localized half-coupling variations.

Technical Specifications of Coupling Fittings In India

Size Range 1/8" to 4" (Available in Full Coupling, Half Coupling, and Reducing Coupling configurations)
Material Grades Stainless Steel: ASTM A182 F304, F304L, F316, F316L, F321, F347
Carbon Steel ASTM A105, A350 LF2, A694 F42 to F70
Alloy Steel ASTM A182 F5, F9, F11, F22, F91
High Nickel Alloy Monel 400/K500, Inconel 600/625/718, Incoloy 800/800H/825, Hastelloy C22/C276, Nickel 200/201, Cupronickel (90/10 & 70/30)
Thickness / Pressure Class Forged / High-Pressure Rating: Class 2000, Class 3000, Class 6000, Class 9000
Bored / Welded Piping Wall Schedule 40, Schedule 80, Schedule 160, Schedule XXS
Surface Finish Black Phosphated, Hot-Dip Galvanized, Pickled & Passivated, Anti-Rust Oil Coated, Mirror or Matt Polished
Origin Indian / Imported

Sourcing Terms & Timeline

Payment Terms

Letter of Credit / Bank Transfer / Advance

Delivery Package

Mill Test Certificate (MTC) + Inspection Reports

Standard Delivery

2-5 Working Days in Maharashtra region

Custom Cuts Support

Custom length cutting & shearing facilities available

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Benefits and Application of Coupling Fittings

Benefits

  • High-Efficiency Leak Elimination: Features precision-cut NPT/BSP threads or highly uniform weld sockets that guarantee an airtight seal under extreme hydraulic pressures.

  • Structural Joint Reinforcement: Thick-walled metal construction absorbs inline longitudinal stresses and mechanical shifting, reinforcing the physical connection point.

  • Streamlined Spacing Maintenance: Available in space-saving close styles, reducing line footprint and allowing rapid line modifications without cutting main pipes.

    Applications

    Coupling fittings are extensively utilized across mechanical networks to build long-run fluid supply systems and mount instrumentation devices. In chemical processing grids, Stainless Steel and High Nickel Alloy couplings connect critical reaction lines, providing essential immunity against pitting from harsh chemical reagents. In the oil and gas sector, high-yield Carbon Steel full couplings are used to bridge long high-pressure transport pipes, preventing joint failure from volatile pressure spikes. Power generation facilities use Alloy Steel half-couplings welded onto large headers to mount pressure gauges and thermal sensors into superheated steam lines safely. Additionally, marine systems use Cupronickel couplings to extend seawater cooling loops, ensuring the connections withstand constant wave vibrations and chloride corrosion.

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Procurement Network

Supplying to top industrial contractors

VIVEK INDUSTRIES APEX INFRASTRUCTURE MUMBAI METRO METALLICS GODREJ METALS TATA INFRA
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Buyer reviews

"Excellent B2B platform. Sourcing high pressure pipe fittings from verified suppliers in Girgaon has saved us massive research hours."

Rajesh K. Shah

SHAH STRUCTURALS LTD.

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Ultrasonic Testing Reports

Nondestructive raw material testing certified by third party auditors.

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Hot Dip Galvanizing

Premium corrosion protective zinc coating applied to structural steels.

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Logistics & Site Unloading

Flat-bed truck logistics matching tight construction schedules in Mumbai.

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