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Backflow Preventers

Backflow preventers keep heating and drinking water sources separate for safety and peace of mind. These products prevent heating system water from backflowing into potable water when supply pressure falls below system pressure.

TAX Series

TAX Series

TAX Series (commercial) Expansion Tanks are designed to absorb hot water expansion in closed heating systems of large installations. TAX tanks are equipped with butyl diaphragms to separate the air from the system water (glycol).

TK Series Tank Kits

TK Series Tank Kits

TK Series Combo Boiler Trim kits from Resideo are a quick way to purchase boiler trim when doing a boiler change out. All kits with SuperVent include expansion tank and a high performance air eliminator.

TK300 Series- Heating

TK300 Series- Heating

Expansion Tanks absorb hot water expansion in closed heating systems. They are equipped with butyl diaphragms to separate the air from the system water. Pre-pressurized, the tank keeps fluids circulating and maintains minimum pressure.

TK300-A Series Tank Kits

TK300-A Series Tank Kits

TK Series Boiler Trim kits from Resideo are convenient when doing a boiler change out. They include expansion tank, air purger and air vent; selected models include FM911 combination boiler fill valve/ backflow preventer and/or service check valves.

TX Series- Domestic Hot Water

TX Series- Domestic Hot Water

The Thermal Expansion Absorber is an expansion tank with a butyl diaphragm. The Thermal Expansion Tank controls pressure build-up in the system, eliminates relief valve spillage, protects fixtures and extends water heater life.

TX-V Series- ASME Construction Vertical

TX-V Series- ASME Construction Vertical

The Thermal Expansion Absorber is an expansion tank with a butyl diaphragm. The Thermal Expansion Tank controls pressure build-up in the system, eliminates relief valve spillage, protects fixtures and extends water heater life.

XPS Series- Commercial

XPS Series- Commercial

XPS Series Expansion Tanks absorb hot water expansion in closed heating systems in larger installations. They have butyl diaphragms to separate clamped design, keep fluids circulating and maintain minimum system pressure.