De Dietrich 80050200, raccord en fonte D125.64, peinture

This is a cast iron nipple, a fitting used to join pipework in heating systems. Parts of this type connect sections of pipe or link a boiler’s water, gas or condensate lines to the appliance. The “D125.64” designation refers to a specific geometry of the nipple, but the exact dimensions are not given here. The paint finish provides a basic corrosion protection layer. Selection of a nipple for a boiler or burner system is based on the thread type and size, the material, and the sealing method required (tapered thread, flat gasket, or O-ring). Cast iron is commonly used for water circuits in heating installations because of its strength and resistance to temperature cycling. When replacing a nipple, confirm that the thread form (e.g., BSP, NPT) and size match the existing port. Also verify that the material is suitable for the medium – cast iron is generally appropriate for closed-loop hot water but may not be compatible with all gas types or condensate if the pH is low. The paint should not be assumed to provide chemical resistance; inspect the nipple for any manufacturer-specific coating notes. Because this component carries the De Dietrich brand, it is intended for use in De Dietrich appliances. Manufacturer-specific fittings often have a fixed geometry that differs from generic equivalents. Always compare the original nipple’s length, thread depth, and sealing face before installation. If the exact match is uncertain, measure the thread dimensions and consult the appliance documentation to avoid leaks or dimensional mismatches.