Kromschroder Spring 75426220

Kromschroder Spring 75426220 is an original spare part designed for use in Kromschroder GBF65, VGBF65, and VAR65 pressure regulators. It operates within a pressure range of 85–105 mbar and is white in color. The spring is made from spring steel and complies with safety standard EN 88. It ensures high stabilization accuracy, contributing to and durable performance. This spring enables quick replacement to restore regulator functionality.

When selecting a spring of this type, confirm that the pressure range matches the required set point and that the spring's physical dimensions (free length, wire diameter, and coil count) are identical to the original. The spring must fit into the regulator bonnet and seat correctly on the diaphragm plate. Always check the regulator data plate and original spring markings before installation to ensure compatibility.

A failing spring of this kind may cause pressure fluctuations, leading to unstable burner operation or the burner operating outside the safe gas pressure envelope. Symptoms include inconsistent outlet pressure, difficulty maintaining set point, or the regulator failing to seat properly. Inspect the spring for signs of fatigue, deformation, or breakage, and verify that it matches the specified pressure range.