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JML Henderson Ltd  |  SKU: 00397

BSP Female to Female Reducer (Aluminium)

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The BSP Female to Female Reducer in aluminium is a versatile and durable fitting designed to facilitate a change in pipe diameter while maintaining a secure connection between two BSP (British Standard Pipe) female threaded ends. This reducer features a larger BSP female thread on one end and a smaller BSP female thread on the other, allowing for seamless integration into piping systems where reduction in pipe size is required.

Constructed from high-quality aluminium, this reducer offers excellent corrosion resistance and mechanical strength while being lightweight compared to other metals. Aluminium's properties make it ideal for applications where weight reduction is advantageous, such as in aerospace, automotive, and industrial sectors. The material's durability ensures long-term reliability and resistance to wear, making it suitable for various operating conditions.

The precise threading on both ends of the reducer ensures a tight and leak-proof seal when connected to compatible male threaded fittings or pipes. This secure connection is essential for maintaining the integrity of fluid handling systems, preventing leaks and ensuring efficient flow of liquids or gases.


  • Product
  • Type
    BSP Reducer
  • Size
    4" to 3"
  • Connection 1
    Female BSP Thread
  • Connection 2
    Female BSP Thead
  • Material Type
  • Colour

Features & Benefits

  • Lightweight: Made from aluminium, offering a lightweight solution that is easy to handle and install, reducing the overall weight of the system compared to other materials like steel.
  • Corrosion Resistance: Aluminium provides good resistance to corrosion, suitable for applications where exposure to moisture and outdoor elements is expected, though not as resistant as stainless steel.
  • BSP Female Threads: Features BSP (British Standard Pipe) female threads on both ends, ensuring compatibility and easy connection with other BSP-threaded components. This standardization allows for reliable and leak-free joints.
  • Reducer Functionality: Designed to reduce the diameter of the pipe or fitting, facilitating the transition between different pipe sizes or systems. This flexibility helps in adapting to varying flow rates or system requirements.
  • Versatile Application: Suitable for various industrial, plumbing, and irrigation applications where reducing or adapting pipe sizes is necessary. The aluminium construction offers a balance of strength and cost-effectiveness for these applications.


BSP (British Standard Pipe) fittings are used in a wide range of applications due to their standardized thread forms, which ensure compatibility, reliability, and ease of installation. Some of the primary applications for BSP fittings include:

  • Plumbing Systems: BSP fittings are extensively used in residential, commercial, and industrial plumbing systems for connecting pipes, faucets, valves, and fixtures in water supply and drainage systems.
  • Heating and Cooling Systems: These fittings are commonly used in HVAC (heating, ventilation, and air conditioning) systems to connect piping for hot water, steam, and cooling systems.
  • Oil and Gas Industry: In the oil and gas industry, BSP fittings are used in pipelines, refineries, and drilling rigs to connect pipes, valves, and other equipment, ensuring secure and leak-proof connections.
  • Pneumatic Systems: In pneumatic systems, BSP fittings connect air lines, valves, actuators, and other components involved in the automation and control processes of various industrial applications.
  • Agriculture: In agricultural applications, BSP fittings are used in irrigation systems, sprayers, and other equipment that requires durable and secure pipe connections.

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Technical Data Sheet(s)

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