Series TA

Tunstall Corp. produces a complete line of thermostatic radiator steam traps with ratings up to 125 psi. Each unit is tested and inspected before leaving the factory guaranteeing years of trouble free service. All units are “normally open” to expel air and water and will “close” at saturated steam temperature thereby preventing steam from entering into condensate return lines. Each Tunstall Steam Trap features the Tunstall Capsule® which has become the best steam trap replacement bellows available today.

• Heavy duty forged brass
• TIG welded stainless steel Tunstall Capsule® with balanced pressure stainless steel bellows
• Calibrated, inspected and tested
• Ratings from 25″ Hg vacuum to 125 psi
• Available in 1/2″ & 3/4″ straight or angle, 1/2″ x 3/4″ angle, 1/2″ vertical and 1″ angle patterns

• Simple installation
• Corrosion resistant stainless steel internals
• Extended life on low pressure applications

• Cast Iron Radiators
• Finned Tube Radiation
• Convectors
• Air Coils
• Sterilizers
• Drips

Furnish and install Tunstall Thermostatic Steam Traps as shown or as specified on plans and in accordance with manufacturer’s instructions, sizes ½”, ¾” or 1″. The trap body and cover shall be forged brass and provided with an entirely stainless steel Tunstall Capsule®. Rating shall be _____lbs/hr at _____ PSIG pressure differential. Each unit shall be guaranteed for 2 years from the date of installation.

The Tunstall Capsule® professionally upgrades all thermostatic steam traps. Refer to catalog #795 for more detailed information.

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