CAPACITIES*

DIFFERENTIAL PRESSURE (PSI)
Square Feet EDR ** lbs Condensate
per hour ***
Model Size
NPT		 PSIG
Orifice		 ½ 1 1-½ 2 5 10 25 50 75 125
TA-½-A ½" 5/16 120 165 200 230 320 500 825 1400 1700 1950
TA-¾-A ¾" 5/16 230 330 400 465 730 1050 1700 2375 2680 3300
TA-1-A 1" ¼ 430 590 700 760 1200 1750 4100 4050 4700 5500
TA-½x¾-A ½"x¾" 5/16 230 330 400 465 730 1050 1700 2375 2680 3300
TA-½-S ½" 5/16 120 165 200 230 320 500 825 1400 1700 1950
TA-¾-S ¾" 5/16 230 330 400 465 730 1050 1700 2375 2680 3300
TA-½-V ½" 5/16 120 165 200 230 320 500 825 1400 1700 1950

*Ratings are in accordance with standards established by The Steam Heating Manufacturers Association (SHEMA). No safety factor required.
**To convert Square Feet EDR to pounds of condensate per hour: Divide the square foot ratings by 4.
   One Square foot EDR is equivalent to net emission of 240 BTU per hour with 215°F steam in the radiator surrounded by 70°F   air temperature.
***Basic ratings for trap pressures greater than 25 psi are given in lbs of condensate per hour.
     One pound of condensate is equivalent to approximately 1000 BTU, 1000 BTU is equivalent to approximately 4 square feet EDR.


Model No. Pipe Size A B C D E Weight
TA-½-A ½" Angle 3.00 1.25 2.57 2.56 -- 1.75 lbs
TA-¾-A ¾" Angle 3.38 1.37 2.87 2.56 -- 1.84 lbs
TA-1-A 1" Angle 4.13 2.00 4.12 2.08 -- 2.50 lbs
TA-½-S ½" Straight 3.00 2.15 3.00 2.50 1.00 1.94 lbs
TA-¾-S ¾" Straight 3.38 2.15 3.00 2.50 1.00 2.05 lbs
TA-½X¾-A ½"x¾" Angle 3.38 1.25 2.57 2.56 -- 1.75 lbs
TA-½-V ½" Vertical 2.50 4.85 -- -- -- 1.65 lbs

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Tunstall Corporation - 118 Exchange Street - Chicopee, MA 01013
Phone:(413)594-8695 - Fax:(413)598-8109