RA 2000 IMPROVE COMFORT AND EFFICIENCY! THE WORLD’S FIRST WAS PRODUCED BY DANFOSS IN 1943.

Danfoss Inc. 6711 Mississauga Road, Suite 410 Mississauga, ON, L5N 2W3 Tel.: 905-285-2050, Fax: 905-285-2055

Danfoss Inc. 7941 Corporate Drive Baltimore, MD 21236 USA Tel.: 443-512-0266, Fax: 443-512-0270

Thermostatic Radiator Valves For Use On Hot Water One-Pipe & Two-Pipe Low Pressure Steam Systems

www.na.heating.danfoss.com RA 2000 Thermostatic Radiator Valves

When Danfoss invented the first No. Description radiator thermostat in 1943, 1. Operator setting dial (ABS) we also introduced a brand 2. Vapor charged bellows new way of thinking about 3. Safety spring (steel) temperature control, and this 4. Adjustment spring (steel) has set the standard ever since. 5. Locking/limiting pin (steel) 6. Pressure spindle () Today, Danfoss, the leading, 7. Snap-on mounting ring global supplier of TRVs, is the 8. Valve body (nickel plated brass) only manufacturer in the world 9. Union nut (nickel plated brass) using revolutionary gas filled 10. Tailpiece (nickel plated brass) operators. Gas reacts faster 11. Valve disc (EPDM) on changing temperature 12. Valve spindle (brass) than other fluids, thus room 13. Valve spring (stainless steel) temperature is “locked” within 14. Back seat washer (EPDM) the desired parameters, the “free” 15. Valve bonnet (brass) heat distribution is increased 16. Pressure pin (stainless steel) and more energy is saved. 17. Packing o-ring (EPDM) Furthermore, the gas maintains 18. Packing gland (DRZ brass) its regulating attributes throughout the lifetime of a RA 2000 Thermostatic Radiator Valves regulate the flow of hot water or steam through free-standing thermostat allowing its trouble radiators, baseboards or convectors in hot water and two-pipe low pressure steam systems. free operation. The RA 2000 thermostatic operator consists of a saturated vapor charged bellows and a setting dial. The dial is set to the position equal to the desired temperature. When the ambient temperature lowers, Our commitment to continuous the pressure from the bellows will reduce, allowing the valve to open. A rise of temperature increases product improvement ensures the pressure in the bellows closing the valve. The balanced pressures between the adjustment spring that TRVs meet most challenging and the bellows ensure a smooth and modulating operation of the valve. market demands for function and elegant design. Also, the Technical Specifications Features installation process could not Hydronic Hot Water Systems get any simpler! The “snap- • Fast acting modulating control action” mechanism allows Maximum Temperature: 250°F of the space temperature through standard operators (non tamper Maximum Static Pressure: 145 psi a patented vapor charge proof models) to be easily Maximum Test Pressure: 232 psi • Optional theft protection device installed and removed from Max. Diff. Pressure (water): 15 psi the valve body without tools, Max. Sensor Temperature: 140°F • “Snap-action” mechanism that and an audible “click” clearly Adjustable Temp. Range: 45 - 86°F (7 - 30°C) allows easy installation and removal indicates that the operators have been installed correctly. Two-Pipe Low-Pressure Steam Systems • Valves are fitted with a packing Maximum Temperature: 250°F gland assembly that is replaceable Danfoss RA2000 TRVs are Maximum Test Pressure: 232psig while the system is in operation engineered, tested and Maximum Steam Pressure: 15psig manufactured for top quality... Maximum Sensor Temperature: 140°F • Sturdy EPDM rubber valve disc Quality you can relay on upon Adjustable Temp. Range: 45 - 86 °F (7 - 30 °C) • Elegant design for all your residential, commercial, or institutional CONFORMS TO • Tradition of quality and hydronic ASHRAE / ANSI expertise since 1943 needs. STANDARD 102 - 1983

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