Kromschroder Safety diaphragm 74924642

The Kromschroder Safety diaphragm 74924642 is a spare part for gas pressure regulators of the VGBF/VAR 100 /B series. It has a nominal diameter of 50 mm and is made of stainless steel. The diaphragm operates within a temperature range of -20 to 60 °C and can withstand a maximum inlet pressure of 500 mbar. Its purpose is to serve as a safety diaphragm, releasing excess gas when pressure exceeds permissible limits to protect the regulator and system.

When selecting a replacement safety diaphragm for gas valves, verify that the part number matches the original valve assembly. The diaphragm's material, shape, and dimensions must correspond to the specific valve model. Check the nominal diameter and ensure compatibility with the valve series, as diaphragms are typically not interchangeable across different series. Before ordering, compare the part with the original to confirm correct fit.

A failing safety diaphragm may cause gas leakage, failure to open or close properly, or unstable outlet pressure. Symptoms on the equipment include irregular gas flow, pressure fluctuations, or the valve not responding correctly to pressure changes. Inspect the diaphragm for tears, deformation, or hardening, and replace it if any damage is found.