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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 (DN 25) NPS 1 (DN 25)

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

2 to 8

(0,14 to 0,55)

2 (0,14)

27 (12) 39 (18) 49 (22) 70 (32)

Not Available

5 (0,34) 42 (19) 75 (34) 110 (50) 150 (68)

8 (0,55) 62 (28) 110 (50) 160 (73) 210 (95)

5 to 25

(0,34 to 1,7)

5 (0,34) 32 (15) 43 (20) 57 (26) 75 (34) 24 (11) 30 (14) 38 (17) 45 (20)

15 (1,0) 65 (30) 120 (54) 190 (86) 240 (109) 42 (19) 61 (28) 89 (40) 120 (54)

25 (1,7) 110 (50) 220 (100) 350 (159) 440 (200) 62 (28) 93 (42) 140 (64) 200 (91)

15 to 70

(1,0 to 4,8)

15 (1,0) 46 (21) 88 (40) 140 (64) 190 (86) 40 (18) 53 (24) 71 (32) 93 (42)

30 (2,1) 120 (54) 250 (114) 340 (154) 420 (191) 94 (43) 150 (68) 220 (100) 290 (132)

45 (3,1) 200 (91) 420 (191) 550 (250) 650 (295) 150 (68) 240 (109) 360 (163) 480 (218)

50 (3,4) 220 (100) 480 (218) 620 (281) 730 (331) 170 (77) 270 (123) 410 (186) 550 (250)

60 (4,1) 270 (123) 590 (268) 750 (341) 880 (400) 200 (91) 340 (154) 510 (232) 680 (309)

70 (4,8) 320 (145) 700 (318) 890 (404) 1010 (459) 240 (109) 400 (182) 600 (272) 810 (368)

25 to 90

(1,7 to 6,2)

35 (2,4) 71 (32) 120 (54) 180 (82) 260 (118) 66 (30) 97 (44) 140 (64) 190 (86)

50 (3,4) 150 (68) 300 (136) 450 (204) 550 (250) 120 (54) 200 (91) 310 (141) 420 (191)

75 (5,2) 290 (132) 600 (272) 900 (409) 1040 (472) 210 (95) 380 (173) 580 (263) 790 (359)

90 (6,2) 370 (168) 780 (354) 1170 (531) 1260 (572) 260 (118) 490 (222) 740 (336) 1010 (459)

35 to 100

(2,4 to 6,9)

35 (2,4) 100 (45) 170 (77) 270 (123) 370 (168) 73 (33) 110 (50) 150 (68) 200 (91)

50 (3,4) 170 (77) 320 (145) 500 (227) 620 (281) 120 (54) 200 (91) 300 (136) 400 (182)

75 (5,2) 290 (132) 560 (254) 880 (400) 1030 (468) 200 (91) 360 (163) 550 (250) 740 (336)

100 (6,9) 400 (182) 810 (368) 1260 (572) 1380 (627) 280 (127) 520 (236) 800 (363) 1080 (490)

75 to 125

(5,2 to 8,6)

75 (5,2) 630 (286) 920 (418) 1000 (454) 1070 (486) 420 (191) 640 (291) 810 (368) 840 (381)

100 (6,9) 910 (413) 1200 (545) 1290 (586) 1380 (627) 510 (232) 830 (377) 950 (431) 1150 (522)

125 (8,6) 1100 (499) 1470 (667) 1580 (717) 660 (300) 1060 (481) 1270 (577)

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

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

2 to 8

(0,14 to 0,55)

2 (0,14) 30 (14) 43 (20) 54 (24) 77 (35)

Not Available5 (0,34) 46 (21) 83 (38) 120 (54) 160 (73)

8 (0,55) 68 (31) 120 (54) 180 (82) 230 (104)

5 to 25

(0,34 to 1,7)

5 (0,34) 35 (16) 47 (21) 62 (28) 82 (37) 26 (12) 33 (15) 42 (19) 50 (23)

15 (1,0) 72 (33) 130 (59) 210 (95) 260 (118) 47 (21) 67 (30) 98 (44) 130 (59)

25 (1,7) 120 (54) 240 (109) 380 (173) 470 (213) 68 (31) 100 (45) 160 (73) 220 (100)

15 to 70

(1,0 to 4,8)

15 (1,0) 50 (23) 97 (44) 150 (68) 210 (95) 44 (20) 58 (26) 78 (35) 100 (45)

30 (2,1) 130 (59) 280 (127) 380 (173) 460 (209) 100 (45) 160 (73) 240 (109) 320 (145)

45 (3,1) 220 (100) 460 (209) 600 (272) 720 (327) 160 (73) 270 (123) 400 (182) 530 (241)

50 (3,4) 240 (109) 520 (236) 680 (309) 800 (363) 180 (82) 300 (136) 450 (204) 600 (272)

60 (4,1) 300 (136) 650 (295) 830 (377) 940 (427) 220 (100) 370 (168) 560 (254) 750 (341)

70 (4,8) 360 (163) 770 (350) 980 (445) 1070 (486) 260 (118) 440 (200) 660 (300) 890 (404)

25 to 90

(1,7 to 6,2)

35 (2,4) 78 (35) 130 (59) 200 (91) 290 (132) 73 (33) 110 (50) 160 (73) 210 (95)

50 (3,4) 170 (77) 330 (150) 500 (227) 610 (277) 130 (59) 220 (100) 340 (154) 460 (209)

75 (5,2) 320 (145) 660 (300) 990 (449) 1140 (518) 230 (104) 420 (191) 640 (291) 870 (395)

90 (6,2) 400 (182) 860 (390) 1250 (568) 1340 (608) 290 (132) 540 (245) 820 (372) 1110 (504)

35 to 100

(2,4 to 6,9)

35 (2,4) 110 (50) 190 (86) 290 (132) 400 (182) 80 (36) 120 (54) 170 (77) 220 (100)

50 (3,4) 190 (86) 350 (159) 540 (245) 680 (309) 130 (59) 220 (100) 330 (150) 450 (204)

75 (5,2) 320 (145) 620 (281) 970 (440) 1140 (518) 220 (100) 400 (182) 610 (277) 810 (368)

100 (6,9) 440 (200) 890 (404) 1380 (627) 1470 (667) 310 (141) 570 (259) 880 (400) 1180 (536)

75 to 125

(5,2 to 8,6)

75 (5,2) 670 (304) 900 (409) 1050 (477) 1140 (518) 410 (186) 660 (300) 840 (381) 910 (413)

100 (6,9) 850 (386) 1270 (577) 1380 (627) 1470 (667) 560 (254) 890 (404) 1060 (481) 1340 (608)

125 (8,6) 1230 (558) 1570 (713) 1690 (767) 690 (313) 1010 (459) 1470 (667)

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

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 19 20

Bulletin 71.4:SR8 1

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