Spring Dungs 229838 yellow 30-70 mbar 507

Spring Dungs (art. 229838) yellow, No. 6 is designed for adjusting output pressure in the range of 30–70 mbar in gas pressure regulators of the FRS and FRNG series with Rp ¾" connection, including models FRS 507 and FRNG 507. 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 229838.