TechTalk about Threaded PVC Ball Valves

The threads on our standard ball valves are all BSP female tapered. The majority of threaded pvc components connected to valves are themselves BSP tapered (male).  Fittings a tapered male to a tapered female give an increased contact area and more likelihood of a successful seal. In contrast, fitting a tapered male thread to a parallel female  often results in a weeping or dripping joint due to the small contact area of the threads. 

Should you wish to connect a parallel thread, we suggest that you purchase a plain valve and a spigot : fbsp connector from here.

PTFE Tape - Please remember that for ALL threads, you should wrap a small amount of PTFE tape around the male thread. This prevents fluid passing the through the thread.