Brochure

10
Hoffman Specialty
®
Steam Traps
Steam Traps
1/4 1/2 12510 15 20 25 30 40 50 60 75 100 125 150 175
(0.017) (0.035) (0.07) (0.14) (0.35) (0.69) (1.0) (1.4) (1.69) (2.1) (2.8) (3.5) (4.2) (5.2) (6.9) (8.6) (10.4) (12.1)
Float and Thermostatic Steam Traps (continued)
3/4 .106 70 80 110 140 220 280 340 380 400 420 460 480 520 580 690 850 960 1000
(2.7) (32) (36) (50) (63) (100) (127) (155) (172) (180) (190) (210) (220) (235) (263) (315) (385) (435) (454)
1 .106 70 80 110 140 220 280 340 380 400 420 460 480 520 580 690 850 960 1000
(2.7) (32) (36) (50) (63) (100) (127) (155) (172) (180) (190) (210) (220) (235) (263) (315) (385) (435) (454)
• Determine the differential pressure across the trap
(inlet pressure - outlet pressure). On applications where
the steam is controlled by a modulating temperature
regulator, the trap differential should be 1/2 psi (0.34 bar).
• Determine the capacity based on the differential pressure
and the required capacity of the trap to open against the
maximum inlet steam pressure.
• Apply a Safety Factor by multiplying required capacity
by 1.5.
Orifice
Size
in.
(mm)
Size
in.
Pressure Differential in Pounds Per Square Inch (bar)
Capacities in Pounds of Condensate Per Hour (kg/hr.)
3/4 .253 390 500 680 910 1100 1450 1600
(6.4) (177) (227) (308) (413) (500) (658) (725)
1 .253 390 500 680 910 1100 1450 1600
(6.4) (177) (227) (308) (413) (500) (658) (725)
1 1/4 .312 600 770 980 1240 1640 2000 2340
(8) (272) (350) (444) (562) (744) (907) (1062)
1 1/2 .500 1280 1700 2050 2550 3500 4400 5300
(13) (581) (771) (930) (1157) (1588) (1996) (2404)
2 .687 2500 3150 4000 5000 6800 8300 9800
(17) (1134) (1429) (1814) (2268) (3084) (3765) (4405)
3/4 .166 160 210 280 360 520 700 800 870 930 970 1120 1230 1300 1450
(4.2) (72) (95) (125) (165) (235) (320) (360) (395) (420) (440) (510) (560) (590) (658)
1 .166 160 210 280 360 520 700 800 870 930 970 1120 1230 1300 1450
(4.2) (72) (95) (125) (165) (235) (320) (360) (395) (420) (440) (510) (560) (590) (658)
3/4 .125 100 130 170 230 330 410 500 560 620 660 750 830 890 970 1100 1190
(3.2) (45) (60) (77) (104) (150) (186) (225) (255) (280) (300) (340) (375) (400) (440) (500) (540)
1 .125 100 130 170 230 330 410 500 560 620 660 750 830 890 970 1100 1190
(3.2) (45) (60) (77) (104) (150) (186) (225) (255) (280) (300) (340) (375) (400) (440) (500) (540)
Series H (continued)
FT175H-3
FT125H-3
FT125H-4
FT075H-4
FT075H-3
FT030H-6
FT030H-5
FT030H-4
FT030H-3
FT015H-8
FT015H-6
FT015H-5
FT015H-4
FT015H-3
Model
FT175H-4
3/4 .235 380 470 630 870 1050 1380 1530 1700 1820 1900
(6) (172) (214) (285) (395) (475) (625) (695) (770) (825) (860)
1 .235 380 470 630 870 1050 1380 1530 1700 1820 1900
(6) (172) (214) (285) (395) (475) (625) (695) (770) (825) (860)
1 1/4 .253 420 550 740 1000 1200 1550 1760 1850 2000 2200
(6.4) (190) (250) (335) (450) (545) (700) (800) (840) (907) (1000)
1 1/2 .438 580 800 1200 1680 2600 3500 4500 5200 5700 6100
(11) (263) (362) (544) (762) (1179) (1387) (2041) (2358) (2585) (2766)
Capacities (Gross Ratings)
®