Kromschroder Stainless steel bellows unit EKO40RA 03262049

The Kromschroder EKO40RA is a stainless steel bellows unit with SKU 03262049, designed for use in burner housing applications. It has a nominal diameter of 40 mm, a length of 240 mm, and connects via an external thread r 1½". It operates within an ambient temperature range of -20 °C to 250 °C and has a maximum working pressure of 10 bar. The unit features a multi-layer bellows construction, is made of stainless steel, and is certified to DIN-DVGW standards, providing high tightness and strength.

When selecting a bellows unit of this type, ensure the nominal diameter, connection type, and length match the existing piping configuration. Verify that the maximum working pressure and temperature range are suitable for the system's operating conditions. Installation requires proper alignment to avoid twisting or over-compression, and the sealing surfaces must be clean and undamaged before tightening. After installation, perform a leak test to confirm integrity.

Common failure modes for bellows units include fatigue cracking due to excessive vibration or thermal cycling, leading to gas or fluid leaks. Symptoms may include a drop in system pressure, audible hissing, or visible corrosion or damage on the bellows. Regular inspection for cracks, deformation, or signs of leakage is recommended, especially in high-stress environments.