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Manual abstract: user guide HONEYWELL TO485DATASHEET
Detailed instructions for use are in the User's Guide.
[. . . ] TO485
Temperature regulator with balanced single-seat piston valve (Cooling water regulator)
Product specification sheet
Application TO485 temperature regulators are used in commercial and industrial installations where the operating temperature in the system is to be limited to a preset value. [. . . ] 16. 0 bar For pressures above 13. 0 bar a T 447 thermostat relief valve is required max. 4. 0 bar Range of Application Medium Water, oil-free compressed air and nitrogen up to 70 °C · Heat conducting sheath between sensor phial and immersion pocket · Thermostat can be replaced without draining the system
Operating temperature max. 70 °C Connection sizes R 1/2" to 2"
Subject to change
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EN0H-1319GE23 R0304
TO485 temperature regulator
Method of Operation The TO485 temperature regulator operates on the expansion principle. As the temperature at the sensor increases or decreases, the fill medium expands or contracts and this causes the piston to move, which then closes or opens the valve. The valve then permits only the amount of flow of heating medium to pass through which is required to maintain the set temperature. A = Setting range 30 °C to 100 °C TO485- . . . B = Setting range 0 °C to 70 °C Connection size
Connection size Weight Dimension (mm) Max. differential pressure kvs-value
R (kg) L (bar)
/2" 4. 9 140 4 2. 4
1
/4" 5. 1 160 4 3. 1
3
1" 5. 3 180 4 7. 6
1 1/4" 6. 2 200 4 9. 1
1 1/2" 6. 2 225 4 12. 6
2" 8. 9 255 4 12. 6
All pressure values given are the excess above atmospheric pressure Accessories T447 Thermostat relief valve A thermostat relief valve must be fitted where the operating pressure is above 13. 0 bar. [. . . ] They can be fitted · For controlling cooling water circuits
Subject to change
105
EN0H-1319GE23 R0304
TO485 temperature regulator
Automation and Control Products Honeywell GmbH Hardhofweg D-74821 Mosbach
EN0H-1319GE23 R0304
Phone: (49) 6261 810 Fax: (49) 6261 81309 braukmann@honeywell. com
106
http://europe. hbc. honeywell. com
Subject to change [. . . ]
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