Description Specifications Literature Description Features: Low minimum operating pressure Close ON-OFF differential Ease of adjustability In line 180 degree porting Monitors gases or liquids Confirms: Normal flow conditions Senses: High flow or low flow conditions Water or explosion proof covers Output:Switch contact Materials: 316SS, brass, teflon Applications: Wet stations Shipboard water systems CVD furnaces cooling water Biomedical instruments Vacuum systems Coolant failure alarm Operations:With no flow present, the magnetic piston rests on the bottom of the bypass bore. When flow is established the piston is forced upward by the bypass flow and actuates the reed switch. The bypass flow is controlled by manual adjustment of the flow control vane. When flow decreases the piston moves downward and the reed switch deactuates. Acutation points for air at 68° F and 14.7 psia with increasing flow Deactuation (decreasing flow) averages 10% less than actuation (increasing flow) Repeatability ± 2% Unit will pass greater flows State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications Body MaterialMax Working Pressure PSIG (barg)Wetted PartsSealTeflon®80 (5.51)Teflon®TFE®Brass1500 (103.42)Brass, EpoxyViton®316SS3000 (206.84)316SS, EpoxyViton®Calibration RangeModelAir SLPM (SCFM)Water LPM (GPM)Ports FPNT500-BP Minimum6 (0.20)0.11 (0.03)1/2"Maximum991 (35)15.14 (4) 500-BPHF Minimum23 (0.80)0.38 (0.10)1/2"Maximum2124 (75)37.85 (10) Pressure Loss TableModelWater Flow Rate LPM (GPM)ΔP to Atmosphere BARD (PSID)84.9 (3)3.8 (1)17.2 (0.25)556.3 (20)15.1 (4)51.7 (0.75)1557.4 (55)30.3 (8)233.0 (3.38)1925.5 (68)37.9 (10)362.0 (5.25)2265.3 (80)64.4 (17)517.1 (7.50) Literature & Docs Spec Sheet Accessories