Description
The Rial automatic feeder installed on the feeder piping of a closed circuit heating system assures a constant preset pressure for the heattransfer fluid in the system, by restoring automatically any missing water (e.g., after purging). During the loading or restoring phase of the system, the valve will block the flow once the preset pressure is obtained and will keep the pressure steady . The micro-stretched mesh filter in the lower part of the automatic feeder enables the distribution of clean water, free of solid impurities, that might otherwise compromise the device’s operation. The device’s downstream check cartridge prevents backflow of the water from the heating circuit into the conduit. Finally, the Rial assembly contains two pressure connections where a gauge can be put in order to monitor the system’s pressure and a manual shut off valve to isolate the water present in the heating plant from the water in the feeding pipe, by simply tightening the lower knurled handwheel, which is particularly useful for maintenance or in case of emergency.
Tech Spec
- Maximum allowable working pressure (PN) 10 bar
- Setting range (PS) 0.5 - 4 bar
- maximum working temperature (TS) 110 °C
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