TAC Pneumatic Products Catalog
TAC Pneumatic Products Catalog
TAC Pneumatic Products Catalog
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TK-6xxx Series, TK-8xxx Series<br />
Relay Bulb Thermostats<br />
For proportional temperature control of pneumatic<br />
valves and actuators to maintain air or liquid<br />
temperatures in duct, plenum chambers, liquid<br />
lines, tanks, etc. May also be used as a low limit<br />
thermostat.<br />
Features:<br />
• Two-pipe (Main and Branch) controllers.<br />
• Direct or Reverse Action.<br />
• Liquid-filled sensing elements: Remote-bulb with 6 ft.<br />
(1.8 m) capillary, or 8 ft. (2.44 m) averaging element.<br />
• Field-adjustable throttling range.<br />
Model Chart<br />
Bulb<br />
Model No. Action<br />
Style Dimensions<br />
TK-6024<br />
D.A. a<br />
TK-8024<br />
Straight<br />
Averaging<br />
3/8 x 4-5/8 in. (9.5 x 117 mm).<br />
3/32 in.x 8 ft. (2.4 mm x 2.4 m).<br />
TK-6124<br />
R.A. a TK-8124<br />
Straight<br />
Averaging<br />
3/8 x 4-5/8 in. (9.5 x 117 mm).<br />
3/32 in. x 8 ft. (2.4 mm x 2.4 m).<br />
a Direct Acting (D.A.) � Increase output pressure on temperature rise.<br />
Reverse Acting (R.A.) � Decrease output pressure on temperature rise.<br />
TK-6024 Shown<br />
Specifications<br />
Thermostat Proportional two pipe type. Thermostats are ambient compensated.<br />
Sensing element Remote liquid-filled copper.<br />
Control dial range -20 to 240�F (-29 to 115�C). Shipped as -20 to 120�F, reverse side of dial 100 to 240�F.<br />
Throttling range Adjustable 3 to 35�F/10 psi (2 to 19�C/69 kPa) change in output, factory set at 5�F (3�C).<br />
Output air signal 0.5 psig (3.4 kPa) to supply air pressure -0.5 psig (-3.4 kPa).<br />
Action<br />
Ambient limits<br />
Refer to Model Chart.<br />
Shipping -40 to 150�F (-40 to 65�C). 0 to 98% R.H., non-condensing.<br />
Case operating 40 to 150�F (4 to 65�C). 10 to 98% R.H., non-condensing.<br />
Bulb 310�F (154�C) maximum.<br />
Supply air pressure Clean, oil free, dry air required (reference EN-123).<br />
Nominal 20 psig (138 kPa).<br />
Minimum 15 psig (103 kPa).<br />
Maximum 30 psig (207 kPa).<br />
Air connections 1/8 in. FNPT for main, branches, and AL-362 gages (not included).<br />
Air consumption for sizing air<br />
compressor<br />
13.8 scim (3.8 mL/s).<br />
Air capacity for sizing air mains 16 scim (4.4 mL/s).<br />
Mounting Upright position on a wall or vertical flat surface.<br />
Bulb dimensions Refer to Model Chart.<br />
Capillary length 6 ft. (1.8 m).<br />
Case dimensions 5-13/16 H x 6-3/16 W x 4 D in. (148 x 157 x 102 mm).<br />
150 © Copyright 2006 <strong>TAC</strong>. All Rights Reserved. F-27383-1<br />
TK-6xxx<br />
Series,<br />
TK-8xxx<br />
Series
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