2.1 Gal. Thermal Expansion Tank for Potable Water Heater

Thermal Expansion Tanks are designed for pressure control in potable water systems. The tank uses compressed air to maintain system pressures by accepting and expelling the changing volume of water as it heats and cools. It prevents the water heater pressure relief valve from opening, saves energy and eliminates a potential safety hazard. It is commonly installed in a domestic hot water system that contains a backflow preventer, a check valve or a pressure reducing valve. Measures: 11 in. L x 7.9 in. W x 11 in. H with 2.1 Gal. tank size, 6 lbs. weight and 3/4 in. connection size (NPT).

Protected pre-charge valve eliminates potential leak path
Prevents dangerous pressure build up, protects household appliances and fixtures
External baked epoxy-polyester coating provides a durable appliance finish
Exclusive polypropylene liner eliminates internal corrosion
MIG welding eliminates interior rough spots and sharp edges
All tanks are NSF61 certified
Each tank is factory leak tested
150 psi maximum pressure rating
Maximum operating pressure: 150 psi
Operating temperature: 210¡ãF
Factory pre-charge: 40 psi
Shell: carbon steel
Connection: stainless steel
Diaphragm: butyl
Color: almond
1-year warranty