Description
The Zilmet ZETA-20 is a premium ASME-rated hydronic expansion tank engineered to maintain stable pressure in closed-loop heating and cooling systems. With a 10.6-gallon tank volume and rugged fixed-diaphragm design, this tank protects boilers, pumps, piping, and heat exchangers from stress caused by thermal expansion. Ideal for residential, commercial, and light-industrial hydronic systems, the ZETA-20 delivers long-term durability, reliability, and safe operation.
Key Features
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10.6-Gallon Expansion Tank
Designed to handle fluid expansion in medium-sized hydronic systems, ensuring consistent pressure and smooth operation. -
ASME Section VIII Rated
Manufactured to meet strict ASME standards, making it suitable for installations requiring code-compliant pressure vessels. -
Fixed Butyl Diaphragm
High-quality diaphragm maintains a permanent separation between air and system fluid, preventing waterlogging and maximizing service life. -
Heavy-Duty Steel Construction
Durable carbon-steel shell withstands demanding heating and cooling environments. -
High Pressure & Temperature Ratings
Typically rated up to 150 PSI working pressure and 240°F, suitable for a wide range of hydronic systems and glycol mixtures. -
Pre-Charged & Install-Ready
Ships pre-charged for fast installation and immediate performance.
