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Couplings for Export | Leak-Proof Pipeline Connections DN 50-3000 mm

  • Couplings are essential components for connecting pipelines efficiently in water transmission, wastewater, petrochemical, and power generation systems.
  • They provide leak-free, durable, and maintenance-friendly solutions without the need for welding, threading, or flanging.
  • With sizes from DN 50–3000 mm and pressure ratings of 10–25 bar, they are suitable for industrial and municipal applications.
  • Couplings also include leak-stopping solutions for pipelines, ensuring uninterrupted flow and long-term reliability.
  • Manufactured in Iran to international standards, they offer high quality at competitive export prices.
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High-Quality Industrial Couplings for Export

Couplings are among the most widely used industrial components in the water transmission, wastewater, petrochemical, and power generation industries. They are specifically designed to connect pipelines quickly and efficiently, both underground and above ground, while ensuring maximum sealing performance and structural reliability.

Unlike traditional pipeline connections that require threading, welding, conical joints, or flange systems, modern couplings provide a cost-effective and maintenance-friendly solution. This technology eliminates common pipeline challenges such as leakage, corrosion, and expansion or contraction stresses caused by temperature changes.

With DN sizes ranging from 50 mm to 3000 mm and pressure ratings between 10 to 25 bar, these couplings are suitable for a wide range of industrial and municipal applications. Manufactured in Iran under strict international quality standards, our couplings are globally recognized for their competitive price, premium material selection, and long service life.

Why Choose Our Couplings for Export?

  • Global compatibility with international pipeline standards.
  • No welding required, reducing labor and downtime.
  • Leak-free performance with NBR or EPDM sealing gaskets.
  • Durable materials including ductile iron and carbon steel ST37-2.
  • Affordable export pricing suitable for large-scale projects.

Applications of Couplings

  • Municipal water supply networks
  • Sewage and wastewater systems
  • Petrochemical and industrial plants
  • Energy and power generation pipelines
  • Irrigation systems and agriculture
  • Pipeline repair and maintenance

Leak-Stopping Solutions – Pipe Sealants and Coupling Technology

In addition to standard couplings, we also supply pipe sealants and special coupling leak stoppers. These products are engineered to stop leakage in pipelines without shutting down the system.

Types of Leak-Stopping Products

  1. For repairing pipe leakages directly on pipelines.
  2. For sealing joints and buried fittings with accessories.

Technical Specifications

  • Diameter Range (DN): 50 – 3000 mm
  • Pressure Range (PN): 10 – 25 bar
  • Material: Ductile Iron, Carbon Steel ST37-2, NBR/EPDM Gaskets, Galvanized Bolts & Nuts
  • Coating: Epoxy-coated for corrosion protection
  • Installation: Suitable for underground and above-ground pipelines

Analysis Table – Coupling Components

Item NoNameMaterialFunction
1BodyST37-2 Carbon Steel / Ductile Iron (GJS 400-15)Provides main structural strength, resists pressure and external load.
2End RingST37-2 Carbon Steel / Ductile Iron (GJS 400-15)Ensures firm pipe gripping and effective sealing.
3GasketNBR (Nitrile Rubber) / EPDMFlexible water-tight sealing, resistant to chemicals and aging.
4Bolts & NutsHigh-Strength Galvanized SteelDurable fastening with corrosion protection.

Key Advantages of Exporting Our Couplings

  • Easy and fast installation without welding or threading.
  • Absorbs pipeline expansion and contraction.
  • Durable with anti-corrosion coating.
  • Leak-proof design reduces repair and maintenance costs.
  • Competitive pricing for international projects.

Conclusion – Trusted Partner for Global Pipeline Connections

With growing demand for reliable and affordable pipeline solutions, our couplings are a preferred export product across the Middle East, Asia, Africa, and Europe. By combining advanced engineering, strict quality control, and competitive pricing, we ensure that our couplings and sealing solutions meet the needs of global buyers, contractors, and distributors.

Whether for municipal water supply, industrial plants, or oil and gas projects, our products guarantee efficiency, durability, and international competitiveness. Available for bulk export with customizable packaging and fast worldwide delivery.

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Started from: Aug 02, 2025

Nahrab Gostar Tehran Company

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