Kromschroder Spring 75438987

The Kromschroder Spring 75438987 is a spare part for Kromschroder VGBF 100 pressure regulators. It is a spring made of spring steel, with a pressure range of 100–160 mbar and a black/red marking color. This spring is certified according to EN 88 and is designed to maintain stable output pressure in gas systems. It is suitable for use with natural gas, LPG, biogas, and air.

Parts of this type are selected by their pressure range, which must match the required working pressure of the application. The colour coding helps identify the spring's characteristics without measuring it. When replacing such a spring, always verify that the pressure range is appropriate for the specific component and that the spring is correctly seated in its housing. Do not substitute a spring with a different range or colour code, as this will alter the pressure setpoint and can affect burner performance and safety.

When springs of this kind fail, they may show signs of deformation or damage, leading to pressure fluctuations or an inability to maintain the setpoint. The equipment may exhibit unstable burner operation or fail to regulate gas pressure correctly. Check the spring for any visible wear, deformation, or breakage, and ensure it is properly seated in its housing.