Series UPR Downstream pressure reducing valve features elastomer-free design (pressure will equalize in a no-flow condition) and the ultimate purity levels, as verified by independent test labs. BCF spigots, flare, sanitary, and other connection types available. 1/4″ – 2″ or 20 – 63mm sizes; choice of Kynar 740 or PTFE body. Class 100 clean/double bag procedure standard. Ultimate purity with excellent flow performance; set pressure range 5-100 PSI.