Kromschroder Adjusting spring 75438981

The Kromschroder Adjusting spring 75438981 is a spare part for gas pressure regulators, specifically designed for the VGBF 50 and VAR 50 models. It is used to adjust the outlet pressure within a range of 100 to 160 mbar. The spring has a color marking of black/red for identification and weighs 100 g. It is compatible with the Kromschroder VGBF 50 series and VAR 50 regulators.

When selecting a replacement spring of this kind, ensure that the pressure range and color marking match the original part. The spring must be compatible with the specific regulator model and size. Before installation, verify that the spring fits correctly in the valve body and that no old spring fragments remain in the chamber. Always consult the regulator manufacturer's documentation to confirm the correct spring for your application.

If a spring of this kind fails or is incorrectly selected, the gas pressure regulator may not maintain the desired outlet pressure, leading to unstable combustion or safety shutdown. Symptoms include the burner failing to modulate properly or the equipment not reaching the required pressure. Check the spring for wear or deformation and ensure it is correctly installed.