DOUBLE CHECK VALVE DC TECHNICAL DATA Nominal diameter: Face-to-face: ISO 5752 Flange accommodation: EN 1092 PN10/16, ASME Class 150 Flange Surface Design: EN 1092 Form A/B Marking: Operating pressure: Tightness check: Temperature range: ASME RF, FF EN 19 16 bar ≤ DN 250 10 bar ≥ DN 300 EN 12266 (Leakage Rate A) ISO 5208, Category 3 0°C to +130°C (depending on pressure, medium and temperature) Bearing operating - Can be disassembled, material-specific recycling possible - Maintenance-free wafer double check valve PRESSURE LOSS DIAGRAM DN 50 - DN 300 The values given in the diagram are valid for water at 20°C. They result of measurements at valves which are mounted in a horizontal conduction. For the ascertainment of pressure losses for other media, the water flow amount has to be calculated with the following formular: Wäp = √ YB x QB 1000 Wäp = equivalent water flow in m³/h YB = flow amount of the media in its operating conditions kg/m³ QB = volume of flow in operating condition (m³/h)

DOUBLE CHECK VALVE DC Installing the check valve on top of a pump please ensure that neither the valve is mounted directly on the pump flange or the following bend or a smoothing section of less than 5 x DN is observed. For tight sealing of the DC a back pressure of not less than 1 bar is required. Subject to change without notic