Orifice primary flow elements, flange unions, and holding block technologies offer optimum flexibility for applications with diverse piping schemes, ease of replacement, and a low capital investment. The orifice plate is one of the most common differential elements for measuring clean liquids, gases, and vapor (steam) flow. PFS application specialists can help you select from our wide range of stock product configurations, or our engineers can custom tailor a solution for your specific orifice flow meter requirements.