Brochure

13
Hoffman Specialty
®
Steam Traps
Steam Traps
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, 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)
3/4, 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)
3/4, 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)
1 1/4 .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)
3/4, 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)
1 1/4 .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)
3/4, 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)
1 1/4 .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)
Model
• 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.
Capacities (Gross Ratings)
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)
Ordering Information
FT015I-3
FT015I-4
FT015I-5
FT030I-3
FT030I-4
FT030I-5
FT075I-3
FT075I-4
FT075I-5
FT125I-3
FT125I-4
FT125I-5
FT175I-3
FT175I-4
FT175I-5
Series I In-line (continued)
®
Seat
Differential Body Design
NPT BSPT NPT BSPT Pressure Pressure
Model
Model
Size Part Part
Rating Rating Weight
Number Number in. Number Number psi (bar) psi (bar) lbs. (kg)
FT015I-3 FT015I-3J
3
⁄4 404270 404285 15 (1.0) 250 (17.3) 11.7 (5.3)
FT015I-4 FT015I-4J 1 404271 404286 15 (1.0) 250 (17.3) 11.7 (5.3)
FT015I-5 FT015I-5J 1
1
⁄4 404272 404287 15 (1.0) 250 (17.3) 11.7 (5.3)
FT030I-3 FT030I-3J
3
⁄4 404273 404288 30 (2.1) 250 (17.3) 11.7 (5.3)
FT030I-4 FT030I-4J 1 404274 404289 30 (2.1) 250 (17.3) 11.7 (5.3)
FT030I-5 FT030I-5J 1
1
⁄4 404275 404290 30 (2.1) 250 (17.3) 11.7 (5.3)
FT075I-3 FT075I-3J
3
⁄4 404276 404291 75 (5.2) 250 (17.3) 11.7 (5.3)
FT075I-4 FT075I-4J 1 404277 404292 75 (5.2) 250 (17.3) 11.7 (5.3)
FT075I-5 FT075I-5J 1
1
⁄4 404278 404293 75 (5.2) 250 (17.3) 11.7 (5.3)
FT125I-3 FT125I-3J
3
⁄4 404279 404294 125 (8.6) 250 (17.3) 11.7 (5.3)
FT125I-4 FT125I-4J 1 404280 404295 125 (8.6) 250 (17.3) 11.7 (5.3)
FT125I-5 FT125I-5J 1
1
⁄4 404281 404296 125 (8.6) 250 (17.3) 11.7 (5.3)
FT175I-3 FT175I-3J
3
⁄4 404282 404297 175 (12.1) 250 (17.3) 11.7 (5.3)
FT175I-4 FT175I-4J 1 404283 404298 175 (12.1) 250 (17.3) 11.7 (5.3)
FT175I-5 FT175I-5J 1
1
⁄4 404284 404299 175 (12.1) 250 (17.3) 11.7 (5.3)