Product Cross-Reference

Tunstall Corporation
118 Exchange Street · Chicopee, MA 01013
© August 2014
We reserve the right to alter designs, specifications and information without notice.
Phone [phone] · Fax [phone]
www.maconbalancing.com
Bulletin-TA-Series-EC-0814
Thermal-Disc & Thermostatic Traps
Thermostatic Radiator Steam Traps - Series EC
Model No. Pipe Size A B C D Weight Capsule
EC2-A
1/2” Angle 2.60 1.35 3.00 1.82 1.15 lbs TFTA-2901
EC3-A
3/4 Angle 2.60 1.35 3.00 1.82 1.25 lbs TFTA-2901
Engineering Specifications
CAPACITIES
*
DIFFERENTIAL PRESSURE (PSI)
Square Feet EDR**
Model
Size
NPT
PSIG
Orifice
1/4 1/2 1 1-1/2 2 5 10 15 25
EC2-A
1/2” 5/16 90 120 165 200 230 320 500 625 825
EC3-A
3/4” 5/16 150 230 330 400 465 730 1040 1050 1700
* Ratings are in accordance with standards established by The Steam Heating Equipment 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.
One pound of condensate is equivalent to approximately 1000 BTU; 1000 BTU is equivalent to approximately 4 square feet EDR.
EC2-A, EC3-A
Thermal
-Disc &
Thermostatic Traps