FIXED FLOW RATE ORIFICES

O’Keefe Controls Co. manufactures a wide variety of fixed flow rate orifices in brass configurations, suitable for both water flow rate control, heating and cooling systems, water spray, film processing and rinsing, water conservation and flow rate limitation. The devices feature a constant flow pressure range from 15 to 150 psig, and an operating temperature range of 32ºF to 160ºF. The fixed flow rate orifices contain a deformable opening which decreases in size as the pressure differential increases. The design of the unit compensates for pressure differential increase by reducing the area of the orifice resulting in constant flow over the differential pressure range 15-150 psig.