Expansion Tank

Expansion Tank

Thermal expansion occurs as domestic water is heated. Left unchecked, the resulting pressure increase can cause relief valve discharge and other potentially unsafe conditions. Therm-X-Trol® expansion tanks absorb this expanded water, keeping water pressure at a safe level.

• # 1 choice of Professional Installers in USA
• Most effective way to control Thermal Expansion
• Stainless steel system connection
• Molded, polypropylene liner for maximum corrosion resistance
• NSF 61 approved
• Broadest line of models to fit any application
• Meets CA and VT low lead laws

Water heater manufacturers and plumbing codes require the installation of an expansion control device if a backflow preventor, pressure reducing valve or check valve is installed in the domestic supply line.Therm-X-Trol satisfies all manufacturers' requirements.