Muelle Dungs 229818 blanco 5 - 13 mbar 503 - 505

Spring Dungs (art. 229818) white, No. 2 is designed for adjusting output pressure in the range of 5–13 mbar in gas pressure regulators of the FRS and FRNG series with Rp 3/8" and Rp ½" threaded connections, including models FRS 503 and FRS 505. Color coding simplifies identification and selection of the required spring. Used in heating systems, boiler plants, and industrial gas automation. Original spare part from Dungs, article number 229818.