These Quality Inlet Valves Use a hydro-mechanical principle of closing the inlet supply with water pressure.
Size Quoted In Internationally adopted B.S.P.T. British Standard Pipe Thread – Actual outside thread diameter is approx 0.656 Inches
The Proven design and high quality materials improve filling accuracy and reduce sensitivity to changes in water pressure.
See listing title for type and size.
Do I need 1/2 Inch bstp or 3/8 Inch bstp for my fill valve?
Most bathroom suites in Europe, particularly Spain and Italy use a 3/8 thread whereas 1/2 is standard for the UK.
Some retailers in the UK supply bathroom suites which are manufactured in Europe and have a 3/8 thread.
More Information – Plastic thread – length 39 mm – Integrated filter for retaining foreign objects – Tolerant of pressure changes in the water main – Smooth closing – no water shocks – See technical Image for all dinensions
British Standard Pipe Thread is a family of standard screw thread types that has been adopted internationally for interconnecting and sealing pipe ends by mating an external (male) with an internal (female) thread. A list of 16 thread sizes are defined by the standards, ranging from 1/16 Inch to 6 Inch. The size was originally based on the inner diameter measured in inches of a steel tube for which the thread was intended. This often causes confusion, as people think the size refers to the outside diameter of the male thread.