Stainless Steel Low Pressure BSP Fittings

Range

• The pipe to be threaded must have a wall thickness of Schedule 40S minimum.
• The fittings are used in non-critical, low pressure applications where welding is not possible or required. They therefore provide a relatively low cost method of connection.
• BSP fittings are made only in type 316.
• BSP fittings are usually fitted with a sealant (paste or tape such as PTFE) and are considered to be permanent pipe-work.
• Low Pressure BSP Fittings are rated at 150lb and are made to wrought iron specification BS1740. BSP fittings are made only in type 316.
• They are provided with a Certificate of Conformity only, and not a full Test Certificate.
• Sizes ½ to 3 inch are the most commonly used and thus the most readily available.
• External MALE threads are tapered and Internal FEMALE threads are parallel. The threads are cut to BS21: Part 1: 1985 and are called Whitworth Threads.

• 90^o Elbow: Enables the pipe run to be turned through a right angle. Female thread both ends.
• 45^o Elbow: Enables the pipe run to be turned through 45 degrees. Female thread both ends.
• Equal Tee: This allows the connection of a branch at right angles from the main pipe run. Female thread at all three connections.
• Socket: Used to connect two pipes or fittings that have male threads. Female thread both ends.
• Half Socket: Used to connect two pipes or fittings that have male threads. Used when there is a confined space. Female thread both ends.
• Reducing Socket: Used to connect two different sizes of pipe or fittings that have male threads. Female threads both ends.
• Cap: Used to terminate a male threaded pipe run. Female threaded.
• Union: Connects male threaded pipe or components. Used when easy or regular access is required e.g. for cleaning. Female thread both ends.
• Hexagon Nut: Used to fix male threaded fittings. Female threaded.
• Reducing Bush: Connects a larger female threaded component to a smaller male threaded component. Male thread at the large end and Female thread at the small end.
• Hexagon Nipple: Used to connect two female threaded components. Male thread both ends.
• Hexagon Reducing Nipple: Connects two female threaded components of different sizes. Male thread both ends.
• Barrel Nipple: Used to connect two female threaded components of the same size. Male (taper) thread both ends.
• Parallel or Equal Nipple: The only BSP fitting to have a male parallel thread. Used to connect female threaded components together.
• Spigot or Welding Nipple: Weld prepared at one end and a male thread at the other. Used to weld onto equipment that is to be connected to a female threaded component.
• Close Taper Nipple: Used to connect two female threaded components. No land between the threads so shorter than a barrel nipple and thus used where space is restricted. Male thread both ends.
• Hexagon Head Plug: Used to blank off female threaded outlet. Cannot be used to blank off a pipe directly as pipes only have male threads. Male threaded.
• Square Head Plug: Used to blank off female threaded outlet. Cannot be used to blank off a pipe directly as pipes only have male threads. Male threaded.
• 90^o Bend: This has a larger radius than a 90-degree elbow and is again used to turn the pipe run through a right angle. Female thread both ends.
• Hose Nipple: Used to connect a hose to the system. Male thread one end and hose serrations at the other.

Whitworth Threads/British Standard Pipe Thread