Engineering Specifications
 
Pressure/Temperature Rating
PMA - Max. Allowable Pressure: 600 psi
TMA - Max. Allowable Temperature: 800° F
PMO - Max. Operating Pressure: 600 psi
TMO - Max. Operating Temperature: 800° F
 
Dimensions and Weights
Model Size A B C Weight
TA-TD-38 3/8" 3 1.75 2.5 1.6
TA-TD-50 1/2" 3 1.75 2.5 1.8
TA-TD-75 3/4" 3 1.75 3 2.4
TA-TD-100 1" 3 1.75 3 2.6
 
Capacities - lbs. of condensate/hr
Inlet (psig) TA-TD-38 TA-TD-50 TA-TD-75 TA-TD-100
3 180 300 415 650
5 185 315 430 680
10 190 350 475 740
15 195 380 520 815
20 200 415 565 885
25 215 440 610 940
30 220 470 650 1000
40 230 515 720 1080
50 250 580 825 1225
75 310 710 1020 1500
100 375 825 1185 1800
150 500 1020 1480 2215
200 620 1165 1710 2625
250 710 1300 1950 2935
300 800 1440 2110 3300
350 825 1565 2265 3600
400 900 1670 2490 3875
450 1070 1775 2625 4120
500 1120 1880 2780 4350
550 1185 1960 2985 4560
600 1290 2060 3140 4840
Note: Max. back pressure should not exceed 80% of the inlet pressure under any conditions of operation, otherwise the trap may not shut.
Installation
Valve installation is typically in the horizontal position as close to the equipment being drained as possible. As the Tunstall Thermal Disc Trap has an integral strainer all that is required upstream of the trap is an isolation valve. Piping to and from the trap should be equal to the trap connection (one size larger is acceptable). Body material is not suitable for welding.

Freeze proof installation is achieved by installing the trap vertically, discharging downward. All drains must be pitched towards the trap. Dishcharge piping must be self-draining.
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