🛡️ Boiler Expansion Vessels & Heating System Pressure Tanks

Maintain the perfect balance in your heating system. As water heats up, it expands; without a functional Expansion Vessel, this internal pressure can damage your boiler’s sensitive components. At Termix.ro, we provide a wide range of replacement expansion tanks designed to absorb thermal expansion and keep your system running safely and efficiently.

⚙️ Flat, Circular & Rectangular Designs

Boiler cabinets are often cramped, requiring specific vessel shapes to fit internal brackets. We stock multiple configurations:

• Flat Expansion Vessels: Designed for wall-hung condensing boilers where space is at a premium 📏.

• Circular & Bottle Shapes: Ideal for floor-standing boilers or external system integration.

• Universal Mounting: Models featuring standard 1/2" or 3/4" threaded connections for easy DIY or professional replacement.

🛡️ High-Durability Membranes & Shells

The heart of the vessel is its internal diaphragm. Our products are built to survive thousands of heating cycles:

• SBR & EPDM Membranes: High-quality rubber compounds that maintain elasticity and resist degradation from heating additives 🧪.

• Carbon Steel Shells: Powder-coated or galvanized finishes that prevent external corrosion in damp boiler environments.

• Pre-Charged Reliability: Most units come factory-charged with nitrogen or air, ready for final pressure tuning upon installation 💨.

📊 Expansion Vessel Selection Guide

💡 Why Buy Expansion Tanks from Termix?

• ⚡ Resolve Pressure Issues: Stop your boiler from leaking through the safety valve by replacing a "waterlogged" or ruptured vessel.

• 🛡️ Trusted Brands: We supply vessels compatible with Zilmet, CIMM, Elbi, and major boiler brands like Ariston and Vaillant.

• 📦 Fast Dispatch: We know that a pressure failure means your boiler won't stay on. We offer rapid shipping to get your heat back 🚚.