Series PRH-U is constructed of a machined Kynar 740 PVDF body and metal-ion-free EPDM seals to provide the highest possible purity in a fused piping system. In addition to the ultra-pure materials, Plast-O-Matic uses a three-step cleaning process. This includes a proprietary pre-assembly clean room treatment, a post-assembly hot and cold eight-hour rinse with deionized water, and a final class 100 clean and double-bag procedure. Independent lab tests verify that the PRH-U has the lowest contamination levels of any PVDF pressure reducing valve currently available.
In addition to its ultra-high purity levels, Series PRH-U features a non-rising stem to minimize installation height. It also has a redesigned internal shaft; the smoother shape helps to maximize flow capacity. All external fasteners are non-wetted and capped to prevent atmospheric corrosion.
Spigot type bead-and-crevice free pipe connections are standard in sizes 1/2 through 3 in., and can be specified to match any major PVDF pipe supplier dimensions. Valves regulate downstream pressure from 10-125 PSI, with maximum inlet pressure of 150 PSI.