Donsen PP Threaded Reducing Bush – BSP Male x Female Reducer for Irrigation and Plumbing

The Donsen PP Threaded Reducing Bush is a polypropylene fitting used to reduce from a larger BSP female thread port to a smaller BSP male thread. It threads into a larger female socket, valve, or fitting, and presents a smaller male BSP thread on the other end. Used throughout irrigation systems, pump installations, and plumbing pipework where thread sizes need to be stepped down. A wide range of reducing combinations is available — select the required sizes from the variants.

• Connection: External male BSP (smaller) fits into female BSP port (larger)
• Material: Polypropylene (PP)
• Thread type: BSP (British Standard Pipe)
• Sizes: Multiple reducing combinations available (see variants)
• Brand: Donsen

Key Features

• Reduces larger female BSP ports to a smaller male BSP thread
• Polypropylene construction – corrosion-resistant and lightweight
• Wide size range – multiple combinations available from ¾" × ½" upward
• Suitable for irrigation mainlines, pump connections, and valve installations

Typical Applications

• Stepping down thread size at valve ports and pump inlets
• Irrigation system pipe and fitting thread adaption
• Connecting different BSP thread sizes in plumbing systems
• General thread size reduction in water reticulation

Technical Specifications

What's Included

• 1 x Donsen PP Threaded Reducing Bush (selected size combination)

Please note: Variant format is Large × Small. For example: "1" × ½"" means a 1" female port reduced to a ½" male thread. Confirm both thread sizes before ordering.

Warranty & Support

This product is supplied with the applicable manufacturer or supplier warranty.