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Half Coupling 1 1/2'' BSP A105 Class 3000
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Description
Half Coupling 1 1/2'' BSP A105 Class 3000
- Size: 1 1/2''
- Thread: BSP
- Pressure class: Class 3000 (206 bar)
- Material: ASTM A105 carbon steel
- Suitable for welding
- High-pressure half coupling
- Dimension D: 64.0 mm
- Dimension V: 39.5 mm
- Dimension L2: 18.4 mm
- 3.1 material certificate available on request (free of charge)
- Origin: European Union

Alternative Name: Half Coupling 1 1/2'' BSP A105 Class 3000, threaded half coupling, BSP half coupling, weld-on half coupling, forged half coupling, threaded weld fitting, pressure half coupling, BSP threaded fitting.
Information
Half Coupling 1 1/2'' BSP A105 Class 3000 is a forged high-pressure threaded fitting designed for welding into pressure piping systems. It provides a secure BSP threaded branch connection while maintaining excellent mechanical strength and long-term reliability.
Half couplings are available in a full range of imperial sizes. Each fitting is permanently marked with its size, material grade, heat number, and pressure class, ensuring complete traceability. All threaded fittings are available with a 3.1 material certificate upon request.
Material
- Material: ASTM A105 carbon steel
- Suitable for welding
- Good machinability
- High mechanical strength
- Suitable for pressure piping systems
- 3.1 material certificate available on request (free of charge)
- Origin: European Union
Comparable grades: 1.0460, C22.8, P245GH, P265GH.
Advantages
- High-pressure threaded connection
- Excellent weldability
- High mechanical strength
- Easy thread selection
- Long service life
- Reliable sealing
- Manufactured for Class 3000 (206 bar) systems
Applications
Boilers, high-pressure piping systems, high-temperature installations, refineries, marine industry, steel mills, ships, industrial machinery, pressure vessels, and process piping.
We also offer half couplings and full couplings in many other sizes and materials. If you have any questions, please contact us. Call +48 63 261 42 02 or email biuro@polberis.pl.
Learn more about half couplings here >>
Technical data
| Coupling Type | Half Coupling |
| Material | Carbon Steel |
| Pressure | Pressure Range 101–250 bar |
| Connection 1 | 1 1/2'' |
| Thread Type – Connection 1 | BSP / G / Rp / Rc Thread |
| Connection 2 | 1 1/2'' |
| Thread Type – Connection 2 | For Welding |

