The 
Thomas Dudley Beta+ Brass Tail Adjustable Side Entry Float Valve (Part Number: 327640)
 is a highly versatile side-inlet fill valve designed for use in most plastic and ceramic cisterns. Its standout feature is the patented multi-directional and extendable float arm, which allows for maximum flexibility during installation to avoid obstructions. 
Key Technical Specifications
Connection: Features an all-new heavyweight 1/2" BSP brass tail connection, which is stronger than plastic threads.
Float Arm: The unique swivel design allows the arm to be adjusted through 180 degrees and extended in length from 185mm to 285mm (approx. 7.25" to 11.25").
Compatibility: Suitable for both low-pressure (0.1 bar) and high-pressure (up to 14 bar) systems.
Standards: It is WRAS approved and manufactured to BS 1212-3 standards.