خزان تمدد CIMM RP250/8 نوع 8 لغلايات Baxi

This expansion tank, listed under catalogue article 294.116.008-2 and manufacturer code 294.116.008, is designated as model CIMM RP250/8 type 8 for Baxi boilers. The part belongs to the category of expansion vessels, which are essential components in sealed heating systems. Parts of this type absorb the volume change of water as it heats, keeping system pressure within the working limits. They work in conjunction with a safety valve, which releases pressure if it still rises too far. When selecting an expansion vessel of this class, the key parameters are its volume and pre-charge pressure, the connection thread size, the membrane material, and whether it is suitable for potable water if used in that circuit. Typical failures include a lost pre-charge or a ruptured membrane: the system then swings in pressure and the safety valve vents, or the valve may weep after being lifted by debris on the seat. During replacement, always verify that the pre-charge pressure matches the system’s cold fill pressure, and check the connection thread compatibility with the manifold or piping. The vessel mounts on the system return or at a point where static pressure is low, and its volume must be adequate for the total water content and the maximum temperature rise. No further specifications for this particular unit are available beyond its designation and codes.