Coupling Fittings
Premium quality coupling fittings for connecting pipes of the same diameter
Premium Coupling Fittings
Starlight Tubes supplies high-quality coupling fittings designed for connecting two pipes of the same diameter. Our couplings provide secure, leak-proof connections and are available in full and half coupling configurations for various piping applications.
Available in multiple connection types including socket weld and threaded, our coupling fittings are manufactured from premium materials and undergo rigorous quality testing to ensure reliable performance and compliance with industry standards.
Technical Specifications
ASTM / ASME CompliantTechnical Specifications — Forged Heavy Hex & Full/Half Couplings
Material standards and pressure ratings for ASME B16.11 threaded and socket weld couplings
| Material | ASTM Standard | Grades | Class |
|---|---|---|---|
| Carbon Steel | ASTM A105 | A105 | 3000#, 6000# |
| Stainless Steel | ASTM A182 | F304L, F316L | 3000#, 6000# |
| Low Temp | ASTM A350 | LF2 | 3000#, 6000# |
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Your Trusted Coupling Fittings Supplier
Starlight Tubes delivers premium coupling fittings with unmatched quality and reliability for secure pipe connections.
Frequently Asked Questions on Coupling Fittings
Key engineering, tolerance, and international compliance answers from our metallurgical quality desk.
A full coupling connects two pipes end-to-end with sockets on both sides. A half coupling has a socket on one side and is typically welded or threaded to a larger pipe or vessel to create a branch connection or instrument tap.
Request Project Quotation for Coupling Fittings
Submit your required sizes, wall thicknesses, material grades, and total tonnage. Our technical sales engineers respond with complete mill pricing and lead times within 24 hours.