|20140 - 1/2 inch BSP safety valve|
1/2 inch BSP fitting progressive lift safety valve. CNC-machined bronze body, stainless steel ball and spring. We fit these to all the standard size range of Staffords and Feldbahns, as well as replacements for secondhand engines that come in which have safety valves that either don't open or shut reliably, or accumulate (or all of the above if you're unlucky).
Supplied assembled, but will require to be set to working pressure, after which the supplied grub screw is used to lock the adjusting collar.