Submittal Sheet

27
STEAM TRAPS
Steam Traps
Differential Pressure psig (bar)
1/2 1 2 5 10 15 20 30 40 50 60 75 100 125 180 200 250
(.035) (0.07) (0.14) (0.35) (0.69) (1.0) (1.4) (2.1) (2.8) (3.5) (4.2) (5.2) (6.9) (8.6) (12.4) (13.8) (17.3)
Series B
®
The trap capacity should be selected based on the
minimum differential pressure between the inlet pressure
and outlet pressure. The trap seat must be capable of
opening against the maximum inlet steam pressure. When
the traps are used on applications where the steam is
controlled by a modulating temperature regulator, the trap
is normally selected to handle the full condensate load
including safety factor at 1/2 psi (.034 bar) differential
pressure.
How to Select
Capacities lbs./hr (kg/hr)
.250 15 500 650 835 1145 1490 1700
(6.4) (1.0) (227) (295) (379) (519) (676) (771)
.187 30 260 345 460 680 905 1060 1200 1440
(4.7) (2.1) (118) (156) (209) (308) (411) (481) (544) (653)
.156 75 200 255 335 480 605 695 775 900 980 1070 1130 1200
B1 (4.0) (5.2) (91) (116) (152) (218) (274) (315) (352) (408) (445) (485) (513) (544)
.125 125 115 150 195 275 355 410 460 530 595 640 690 745 830 920
(3.2) (8.6) (52) (68) (88) (125) (161) (186) (209) (240) (270) (290) (313) (338) (376) (417)
.094 180 80 105 140 205 275 320 360 425 480 520 560 620 705 780 930
(2.4) (10.4) (36) (48) (64) (93) (125) (145) (163) (193) (218) (236) (254) (281) (320) (354) (422)
.070 250 28 40 55 90 125 150 175 215 250 275 305 340 400 450 570 600 700
(1.8) (17) (13) (18) (25) (41) (57) (68) (79) (98) (113) (125) (138) (154) (181) (204) (259) (272) (318)
.360 15 750 975 1255 1755 2280 2620
(9.1) (1.0) (340) (447) (569) (796) (1034) (1188)
.282 30 650 810 1005 1350 1700 1950 2130 2400
(7.1) (2.1) (295) (367) (456) (612) (771) (885) (966) (1089)
.250 75 490 600 740 980 1220 1340 1440 1600 1760 1910 2030 2170
B2 (6.4) (5.2) (222) (272) (336) (445) (553) (608) (653) (726) (798) (866) (921) (984)
.203 125 350 450 580 830 905 920 1020 1180 1310 1430 1540 1680 1920 2100
(5.2) (8.6) (159) (204) (263) (376) (411) (417) (463) (535) (594) (649) (699) (762) (871) (953)
.156 180 200 255 330 460 580 675 740 840 930 1020 1090 1190 1350 1480 1725
(4.0) (10.4) (91) (116) (150) (209) (263) (306) (336) (381) (422) (463) (494) (540) (612) (671) (782)
.141 250 180 235 305 430 540 620 680 780 870 940 1000 1100 1270 1415 1650 1740 1890
(3.6) (17) (82) (107) (138) (195) (245) (281) (308) (354) (395) (426) (453) (499) (576) (642) (748) (789) (857)
Capacities (Gross Ratings)
Orifice
Size
in.
(mm)
Series
Seat
Pressure
psi
(bar)
For selection information, please refer to “Selection
Guidelines” on page 129.
For computer aided selection of Inverted Bucket Steam
Traps, please refer to the “Steam Specialty Component
Selectors” on the Hoffman Specialty website,
www.hoffmanspecialty.com or, for a stand-alone version
of EPS-PLUS, contact your local Hoffman Specialty
Representative (see back cover for listing).