Reducing Coupling 2 1/2" × 1" BSP Class 3000 Carbon Steel A105N

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Description

Reducing Coupling 2 1/2" × 1" BSP Class 3000 Carbon Steel A105N

  • Female threads: G 2 1/2" × 1"
  • Thread type: BSP parallel thread (G / Rp)
  • Pressure class: Class 3000 (206 bar)
  • Material: ASTM A105N carbon steel
  • Equivalent material grades: P285GH, P245GH
  • Suitable for welding
  • Applications: High-performance piping systems, boilers, high-pressure installations, high-temperature systems, refineries, marine industry
  • Manufactured according to ANSI B16.11
  • 3.1 material certificate available on request (free of charge)
  • Origin: European Union

Alternative Name

Reducing Coupling 2 1/2" × 1" BSP Class 3000 Carbon Steel A105N, High Pressure Reducing Coupling, Female BSP Coupling, BSPP Coupling, ISO 7 Rp Coupling, Carbon Steel Threaded Coupling, Weldable Steel Coupling

Information


The 2 1/2" × 1" BSP reducing coupling is a high-pressure threaded fitting manufactured from ASTM A105N carbon steel. It features female BSP parallel threads (G / Rp) and is designed for demanding industrial piping systems operating under high pressure and elevated temperatures.

Reducing 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 product traceability and reliable installation.

Material

The coupling is manufactured from ASTM A105N carbon steel, offering excellent weldability, high mechanical strength, and reliable performance in pressure piping systems. Comparable material grades include P245GH and P285GH.

Advantages

  • Pressure class: Class 3000 (206 bar)
  • Female BSP parallel threads (G / Rp)
  • Manufactured according to ANSI B16.11
  • Excellent weldability
  • Suitable for high-pressure and high-temperature service
  • Full product traceability
  • 3.1 material certificate available on request
  • Manufactured in the European Union

Applications

Suitable for:

  • High-pressure installations
  • Boiler systems
  • High-temperature piping
  • Industrial process systems
  • Refineries
  • Marine industry
  • Heavy industrial installations

Product Marking

Each coupling is marked with:

  • Size
  • Pressure class
  • Material grade
  • Heat number
  • Thread type (where applicable)

Marking is applied in accordance with applicable industry standards.

Material Grades Available

Threaded fittings are available in a wide range of materials, including:

  • A105
  • LF2
  • 304 / 304L
  • 316 / 316L
  • A106
  • API 5L
  • A182
  • A312
  • A333
  • A335
  • A350
  • A420
  • A403
  • A694
  • TP304 / TP304L
  • TP316 / TP316L
  • TP321
  • 1.4301
  • 1.4401
  • 1.4404
  • P355NH
  • P355NL1
  • P355QH
  • L360NB
  • S355J2
  • and many others.

Advantages and Limitations

Advantages

  • Easy selection of thread type and material grade

Limitations

  • Not available with metric threads

Impact-tested material certificates are available.

We also offer this product in other sizes. If you have any questions, please contact us. Call +48 63 261 42 02 or email biuro@polberis.pl.

Learn more about our threaded couplings here >>

Technical data

Coupling Type Reducing Coupling
Material Carbon Steel
Pressure Pressure Range 101–250 bar
Connection 1 2 1/2''
Thread Type – Connection 1 BSP / G / Rp / Rc Thread
Connection 2 1''
Thread Type – Connection 2 BSP / G / Rp / Rc Thread

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