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Bulletin 71.4:SR8

Table 7. Steam Capacities (continued)

SPRING RANGE,

PSIG (bar)

SET

PRESSURE,

PSIG (bar)

CAPACITIES IN POUNDS PER HOUR (kg/h) SATURATED STEAM AT % BUILD-UP

Elastomer Diaphragm Metal Diaphragm

NPS 1-1/2 (DN 40) NPS 1-1/2 (DN 40)

10% 20% 30% 40% 10% 20% 30% 40%

2 to 8

(0,14 to 0,55)

2 (0,14)

30 (14) 40 (18) 46 (21) 56 (25)

Not Available5 (0,34) 36 (16) 66 (30) 120 (54) 170 (77)

8 (0,55) 42 (19) 91 (41) 200 (91) 290 (132)

5 to 25

(0,34 to 1,7)

5 (0,34) 32 (15) 40 (18) 64 (29) 76 (35) 32 (15) 36 (16) 45 (20) 53 (24)

15 (1,0) 72 (33) 170 (77) 310 (141) 360 (163) 51 (23) 68 (31) 102 (46) 140 (64)

25 (1,7) 110 (50) 300 (136) 560 (254) 650 (295) 71 (32) 100 (45) 160 (73) 220 (100)

15 to 70

(1,0 to 4,8)

15 (1,0) 73 (33) 120 (54) 180 (82) 260 (118) 53 (24) 66 (30) 92 (42) 120 (54)

30 (2,1) 290 (132) 460 (209) 520 (236) 620 (281) 100 (45) 160 (73) 250 (114) 340 (154)

45 (3,1) 500 (227) 800 (363) 870 (395) 970 (440) 140 (64) 260 (118) 400 (182) 550 (250)

50 (3,4) 570 (259) 910 (413) 990 (449) 1090 (495) 160 (73) 290 (132) 450 (204) 620 (281)

60 (4,1) 720 (327) 1140 (518) 1220 (554) 1330 (604) 190 (86) 360 (163) 550 (250) 760 (345)

70 (4,8) 860 (390) 1350 (613) 1440 (654) 1540 (699) 220 (100) 430 (195) 660 (300) 910 (413)

25 to 90

(1,7 to 6,2)

35 (2,4) 123 (56) 220 (100) 330 (150) 450 (204) 71 (32) 100 (45) 130 (59) 180 (82)

50 (3,4) 310 (141) 610 (277) 740 (336) 870 (395) 130 (59) 210 (95) 310 (141) 430 (195)

75 (5,2) 630 (286) 1240 (563) 1430 (649) 1560 (708) 220 (100) 400 (182) 610 (277) 850 (386)

90 (6,2) 820 (372) 1630 (740) 1800 (817) 1920 (872) 280 (127) 520 (236) 780 (354) 1100 (499)

35 to 100

(2,4 to 6,9)

35 (2,4) 190 (86) 280 (127) 420 (191) 640 (291) 97 (44) 140 (64) 190 (86) 260 (118)

50 (3,4) 360 (163) 600 (272) 790 (359) 990 (449) 140 (64) 230 (104) 360 (163) 500 (227)

75 (5,2) 640 (291) 1130 (513) 1400 (636) 1580 (717) 220 (100) 380 (173) 630 (286) 910 (413)

100 (6,9) 910 (413) 1660 (754) 1980 (899) 2110 (958) 290 (132) 530 (241) 900 (409) 1310 (595)

75 to 125

(5,2 to 8,6)

75 (5,2) 710 (322) 1250 (568) 1480 (672) 1580 (717) 440 (200) 680 (309) 870 (395) 960 (436)

100 (6,9) 950 (431) 1770 (804) 1950 (885) 2020 (917) 610 (277) 860 (390) 1220 (554) 1530 (695)

125 (8,6) 1420 (645) 2210 (1003) 2400 (1090) 760 (345) 1140 (518) 1630 (740)

Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded.

SPRING RANGE,

PSIG (bar)

SET

PRESSURE,

PSIG (bar)

CAPACITIES IN POUNDS PER HOUR (kg/h) SATURATED STEAM AT % BUILD-UP

Elastomer Diaphragm Metal Diaphragm

NPS 2 (DN 50) NPS 2 (DN 50)

10% 20% 30% 40% 10% 20% 30% 40%

10 to 25

(0,69 to 1,7)

10 (0,69) 280 (127) 400 (182) 640 (291) 860 (390) 210 (95) 300 (136) 390 (177) 490 (222)

15 (1,0) 500 (227) 950 (431) 1190 (540) 1240 (563) 330 (150) 440 (200) 570 (259) 720 (327)

25 (1,7) 970 (440) 1560 (708) 1650 (749) 1740 (790) 460 (209) 660 (300) 910 (413) 1140 (518)

15 to 50

(1,0 to 3,4)

15 (1,0) 440 (200) 660 (300) 950 (431) 1190 (540) 250 (114) 370 (168) 460 (209) 510 (232)

25 (1,7) 690 (313) 1240 (563) 1590 (722) 1730 (785) 410 (186) 590 (268) 820 (372) 1030 (468)

50 (3,4) 1800 (817) 2500 (1135) 2780 (1262) 2940 (1335) 780 (354) 1340 (608) 1880 (854) 2380 (1081)

25 to 60

(1,7 to 4,1)

25 (1,7) 630 (286) 1130 (513) 1640 (745) 1740 (790) 410 (186) 590 (268) 830 (377) 1060 (481)

50 (3,4) 1470 (667) 2600 (1180) 2800 (1271) 2970 (1348) 750 (341) 1250 (568) 1790 (813) 2290 (1040)

60 (4,1) 2490 (1130) 3680 (1671) 3940 (1789) 1230 (558) 2160 (981) 3030 (1376)

Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded.

SPRING

RANGE,

PSIG (bar)

SET

PRESSURE,

PSIG (bar)

CAPACITIES IN POUNDS PER HOUR (kg/h) SATURATED STEAM AT % BUILD-UP

Elastomer Diaphragm Metal Diaphragm

NPS 3 (DN 80) NPS 3 (DN 80)

10% 20% 30% 40% 10% 20% 30% 40%

10 to 25

(0,69 to 1,7)

10 (0,69) 400 (182) 560 (254) 820 (372) 1000 (454) 270 (123) 470 (213) 630 (286) 770 (350)

15 (1,0) 510 (232) 860 (390) 1190 (540) 1540 (699) 440 (200) 680 (309) 890 (404) 1080 (490)

25 (1,7) 930 (422) 1570 (713) 2210 (1003) 2410 (1094) 660 (300) 1040 (472) 1370 (622) 1700 (772)

15 to 50

(1,0 to 3,4)

15 (1,0) 390 (177) 620 (281) 940 (427) 1260 (572) 420 (191) 640 (291) 840 (381) 1020 (463)

25 (1,7) 630 (286) 1280 (581) 1950 (885) 2410 (1094) 550 (250) 980 (445) 1270 (577) 1620 (735)

50 (3,4) 1080 (490) 2410 (1094) 3800 (1725) 4100 (1861) 1240 (563) 2140 (972) 2800 (1271) 3430 (1557)

25 to 60

(1,7 to 4,1)

25 (1,7) 590 (268) 1130 (513) 1660 (754) 2190 (994) 550 (250) 930 (422) 1280 (581) 1580 (717)

50 (3,4) 1150 (522) 2390 (1085) 3710 (1684) 4100 (1861) 1150 (522) 1950 (885) 2660 (1208) 3270 (1485)

60 (4,1) 2950 (1339) 4520 (2052) 5460 (2479) 1840 (835) 3050 (1385) 4090 (1857)

Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded.

Table 7. Steam Capacities (continued)

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 20

Bulletin 71.4:SR8 1

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