Amtrol EX-30 (102-1) Extrol Expansion Tank – 4.4 Gallon Hydronic Tank

SKU/Part Number: 102-1 | Model: EX-30

Upgrade your residential heating system with the Amtrol EX-30 Extrol Expansion Tank, a high-quality hydronic expansion tank designed for residential boilers, radiant heating systems, and closed-loop hydronic heating systems. With a durable steel body, long-lasting Butyl/EPDM diaphragm, and factory precharged air cushion, this 4.4-gallon tank ensures stable boiler pressure, energy efficiency, and extended system life.

✅ Key Features

✅ Heavy-duty steel construction for maximum durability and reliability
✅ Long-life Butyl/EPDM diaphragm for consistent performance
✅ Factory precharged to 12 PSIG for easy installation
✅ InSight visual indicator cap for quick system condition checks
✅ Space-saving in-line design simplifies installation
✅ Protects boilers and system components by preventing relief valve discharge
✅ Compatible with radiant heating and baseboard systems
✅ Can be mounted horizontally, though horizontal installation may reduce lifespan

📊 EX-30 Specifications

✅ Benefits of the EX-30 Expansion Tank

✅ Stabilizes boiler pressure, preventing dangerous pressure spikes
✅ Reduces relief valve discharge, protecting your heating system
✅ Improves energy efficiency for lower heating costs
✅ Easy in-line installation, saving space and time
✅ Proven reliability, backed by nearly 70 years of Extrol engineering
✅ Horizontal mounting option, with caution for lifespan

📌 InSight Indicator Cap – Easy Visual Check

• Clear / White Tip → Normal operation

• Discolored Tip → Replacement needed

Instantly check your system’s condition without guesswork, saving time for homeowners and technicians.

⚠️ Signs Your Expansion Tank Needs Replacement

• Relief valve dripping or frequently opening

• Fluctuating boiler pressure

• Waterlogged tank or diaphragm failure

• Rust or corrosion on tank body

• InSight cap shows discolored indicator

❓ Frequently Asked Questions (FAQ)

Q: What does the Amtrol EX-30 do?
A: It absorbs expanded water in closed-loop hydronic systems, preventing pressure spikes and protecting boilers and system components.

Q: Is the EX-30 precharged?
A: Yes. Factory precharged to 12 PSIG; always verify precharge before installation.

Q: Can I mount it horizontally?
A: Yes, but horizontal installation may reduce the tank’s lifespan.

Q: Is it suitable for radiant heating systems?
A: Yes. Ideal for radiant hydronic systems, baseboard heating, and most residential boilers.

Q: How long does it last?
A: With proper maintenance, 5–10+ years, depending on system conditions.

Why Choose the Amtrol EX-30 Expansion Tank?

The Amtrol EX-30 Extrol Expansion Tank is a trusted solution for residential heating systems, providing boiler protection, pressure stability, and long-term reliability. Perfect for hydronic, radiant, and baseboard heating applications, it helps reduce energy costs and increase system lifespan.

Order the Amtrol EX-30 today for a safer, more efficient heating system.