Automatic float air trap Flanged type triple-acting air release valve – PN16 Flanged type double-acting air release valve – PN10/16 Threaded type single-acting air release valve – PN10/16 Female BSP pressure reducing valve PN16 Single chamber, four-function air valve – PN10/16 2-piece full bore ball valve female BSP – Steel 3-way flanged ball valve – Steel – L port Flanged split-body ball valve – Steel – PN16/40 Standard bore ball valve female BSP – Brass – ACS