Data Sheet
Bulletin 71.1:SR5
25
SPRING RANGE,
PSIG (bar)
SET
PRESSURE,
PSIG (bar)
INLET
PRESSURE,
PSIG (bar)
CAPACITIES IN POUNDS PER HOUR (kg/h) OF SATURATED STEAM AT % DROOP
1-1/2-inch (DN 40) Body
Elastomer Diaphragm Metal Diaphragm
10% 20% 30% 10% 20% 30%
5 to 25
(0,4 to 1,7)
5 (0,4)
25 (1,7) 110 (50) 200 (91) 240 (109) 84 (38) 80 (36) 90 (41)
50 (3,4) 220 (100) 260 (118) 300 (136) 150 (68) 170 (77) 200 (91)
75 (5,2) 290 (132) 320 (145) 370 (168) 220 (100) 250 (114) 310 (141)
15 (1,0)
25 (1,7) 110 (50) 240 (109) 370 (168) 100 (45) 130 (59) 180 (82)
50 (3,4) 240 (109) 360 (163) 490 (222) 180 (82) 230 (104) 310 (141)
75 (5,2) 360 (163) 490 (222) 620 (281) 260 (118) 330 (150) 430 (195)
25 (1,7)
25 (1,7) 220 (100) 410 (186) 530 (241) 110 (50) 160 (73) 280 (127)
50 (3,4) 310 (141) 510 (232) 670 (304) 160 (73) 230 (104) 370 (168)
75 (5,2) 470 (213) 680 (309) 890 (404) 250 (114) 350 (159) 500 (227)
10 to 50
(0,7 to 3,4)
10 (0,7)
25 (1,7) 89 (40) 130 (59) 200 (91) 90 (41) 130 (59) 190 (86)
50 (3,4) 160 (73) 220 (100) 290 (132) 160 (73) 220 (100) 280 (127)
100 (6,9) 240 (109) 310 (141) 380 (173) 240 (109) 300 (136) 370 (168)
25 (1,7)
50 (3,4) 230 (104) 430 (195) 620 (281) 200 (91) 330 (150) 470 (213)
75 (5,2) 350 (159) 540 (245) 740 (336) 280 (127) 420 (191) 590 (268)
100 (6,9) 470 (213) 660 (300) 860 (390) 350 (159) 510 (232) 700 (318)
50 (3,4)
75 (5,2) 750 (341) 1230 (558) 1590 (722) 410 (186) 660 (300) 910 (413)
100 (6,9) 820 (372) 1330 (604) 1660 (754) 560 (254) 840 (381) 1090 (495)
125 (8,6) 880 (400) 1440 (654) 1740 (790) 700 (318) 1030 (468) 1270 (577)
25 to 75
(1,7 to 5,2)
25 (1,7)
50 (3,4) 370 (168) 500 (227) 680 (309) 240 (109) 430 (195) 550 (250)
100 (6,9) 640 (291) 890 (404) 1070 (486) 390 (177) 550 (250) 700 (318)
125 (8,6) 780 (354) 1090 (495) 1260 (572) 470 (213) 610 (277) 780 (354)
50 (3,4)
75 (5,2) 620 (281) 950 (431) 1260 (572) 410 (186) 670 (304) 850 (386)
100 (6,9) 700 (318) 1110 (504) 1400 (636) 420 (191) 740 (336) 950 (431)
125 (8,6) 780 (354) 1270 (577) 1540 (699) 430 (195) 800 (363) 1050 (477)
150 (10) 860 (390) 1420 (645) 1690 (767) 450 (204) 870 (395) 1150 (522)
75 (5,2)
100 (6,9) 790 (359) 1150 (522) 1700 (772) 650 (295) 910 (413) 1270 (577)
125 (8,6) 1010 (459) 1420 (645) 1950 (885) 730 (331) 1060 (481) 1440 (654)
150 (10) 1230 (558) 1680 (763) 2200 (999) 820 (372) 1210 (549) 1610 (731)
175 (12) 1450 (658) 1950 (885) 2450 (1112) 910 (413) 1370 (622) 1780 (808)
35 to 100
(2,4 to 6,9)
35 (2,4)
50 (3,4) 300 (136) 480 (218) 680 (309) 300 (136) 410 (186) 560 (254)
75 (5,2) 390 (177) 600 (272) 810 (368) 380 (172) 490 (222) 660 (300)
100 (6,9) 470 (213) 710 (322) 950 (431) 470 (213) 580 (263) 760 (345)
125 (8,6) 560 (254) 830 (377) 1080 (490) 550 (249) 660 (300) 860 (390)
50 (3,4)
75 (5,2) 610 (277) 910 (413) 1150 (522) 360 (163) 520 (236) 750 (341)
100 (6,9) 670 (304) 1000 (454) 1260 (572) 400 (182) 580 (263) 840 (381)
125 (8,6) 720 (327) 1100 (499) 1380 (627) 440 (200) 650 (295) 920 (418)
150 (10) 770 (350) 1190 (540) 1500 (681) 480 (218) 720 (327) 1010 (459)
75 (5,2)
100 (6,9) 890 (404) 1340 (608) 1760 (799) 460 (209) 760 (345) 1130 (513)
125 (8,6) 960 (436) 1400 (636) 1870 (849) 560 (254) 930 (422) 1310 (595)
150 (10) 1020 (463) 1480 (672) 1990 (903) 650 (295) 1090 (495) 1480 (672)
175 (12) 1090 (495) 1550 (704) 2110 (958) 750 (341) 1260 (572) 1660 (754)
100 (6,9)
125 (8,6) 800 (363) 1480 (672) 2190 (994) 770 (350) 1210 (549) 1660 (754)
150 (10) 1160 (527) 1740 (790) 2480 (1126) 890 (404) 1380 (627) 1840 (835)
175 (12) 1520 (690) 2000 (908) 2770 (1258) 1020 (463) 1540 (699) 2020 (917)
200 (14) 1880 (854) 2250 (1022) 1140 (518) 1700 (772)
Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded,
Table 9. Steam Capacities for 1-1/2-inch (DN 40) Body with Full Port (continued)










