DTWC Direct Mount Operator, Chrome




The Macon DTWC thermostatic valve will help you balance your heating system. The DTWC operator has one of the most accurate sensors available for radiator temperature control. The problems of overheating, underheating and wide temperature swings can now be minimized.

The DTWC thermostatic valve by Macon Controls conserves energy by regulating temperature. Fuel costs can be reduced up to 30%!

The DTWC is a self-acting adjustable non-electric thermostatic operator. It has an anti-freeze position, adjustable max./min. temperature settings, selected temperature locking feature and can be shutoff completely if desired. Each DTWC thermostatic operator is individually calibrated and conforms to ASHRAE standardization rules for temperature regulation. The DTWC ’s smooth shape with narrow air gaps is a very functional design and allows for easy cleaning. DTWC has a connection that is M30x1.5 and will be delivered with an adapter for MMA’s valves so they can be mounted on all Macon NT series valves.




Temp. Range: 46° – 82°F
Hystersis: 0.9°F
Heat Transfer: 1.1°F (Valve Housing Sensor)
Dead Time: 0.8 Minutes
Max. Differential Pressure: 20 psi
Suggested Differential Pressure = 0.5 to 2.9 psi
Max. Water Temp.: 250°F
Max. Storage & Ambient Temp.: 122°F
Max. Steam Pressure: 15 psig
Max. Movement: 0.125 inches
Nominal Opening: 0.018 (3.6°F)
Long Term Test: 5000 cycles (1.3°F)
0 = Off
* = 46°F (Frost Protection)
I = 57°F
II = 64°F
III = 71°F
IIII = 77°F
● = 82°F


BULLETIN: DTW-1116 – Direct Mount Operator – DTWC