Bulletin 71.4:SR8
12
Table 7. Steam Capacities
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 1/2 (DN 15) NPS 1/2 (DN 15)
10% 20% 30% 40% 10% 20% 30% 40%
2 to 8
(0,14 to 0,55)
2 (0,14) 6.4 (2,9) 8.3 (3,8) 10 (4,5) 12 (5,4)
Not Available
5 (0,34) 9.2 (4,2) 14 (6,4) 18 (8,2) 22 (10)
8 (0,55) 12 (5,4) 20 (9,1) 27 (12) 32 (15)
5 to 25
(0,34 to 1,7)
5 (0,34) 7.2 (3,3) 10 (4,5) 13 (5,9) 18 (8,2) 5.3 (2,4) 6.2 (2,8) 7.1 (3,2) 8.4 (3,8)
15 (1,0)
19 (8,6) 32 (15) 40 (18) 46 (21) 10 (4,5) 15 (6,8) 19 (8,6) 24 (11)
25 (1,7) 31 (14) 53 (24) 66 (30) 72 (33) 15 (6,8) 24 (11) 31 (14) 40 (18)
10 to 50
(0,69 to 3,4)
10 (0,69) 11 (5,0) 18 (8,2) 25 (11) 32 (15) 7.5 (3,4) 9.3 (4,2) 12 (5,4) 14 (6,4)
15 (1,0) 17 (7,7) 29 (13) 37 (17) 44 (20) 10 (4,5) 13 (5,9) 18 (8,2) 22 (10)
30 (2,1) 37 (17) 64 (29) 72 (33) 80 (36) 17 (7,7) 25 (11) 37 (17) 47 (21)
45 (3,1) 57 (26) 99 (45) 110 (50) 110 (50) 24 (11) 37 (17) 56 (25) 71 (32)
50 (3,4) 64 (29) 110 (50) 120 (54) 120 (54) 27 (12) 41 (19) 62 (28) 80 (36)
35 to 100
(2,4 to 6,9)
35 (2,4) 33 (15) 56 (25) 77 (35) 92 (42) 19 (8,6) 28 (13) 38 (17) 50 (23)
50 (3,4) 50 (23) 85 (39) 110 (50) 120 (54) 27 (12) 43 (20) 60 (27) 79 (36)
75 (5,2) 78 (35) 130 (59) 160 (73) 170 (77) 41 (19) 68 (31) 96 (44) 130 (59)
100 (6,9) 110 (50) 180 (82) 210 (95) 220 (100) 55 (25) 93 (42) 130 (59) 180 (82)
75 to 125
(5,2 to 8,6)
75 (5,2) 120 (54) 150 (68) 160 (73) 170 (77) 91 (41) 120 (54) 130 (59) 140 (64)
100 (6,9) 150 (68) 200 (91) 210 (95) 220 (100) 120 (54) 160 (73) 170 (77) 180 (82)
125 (8,6) 190 (86) 230 (104) 260 (118) 130 (59) 190 (86) 210 (95)
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 3/4 (DN 20) NPS 3/4 (DN 20)
10% 20% 30% 40% 10% 20% 30% 40%
2 to 8
(0,14 to 0,55)
2 (0,14) 8.3 (3,8) 9.9 (4,5) 14 (6,4) 17 (7,7)
Not Available
5 (0,34) 16 (7,3) 28 (13) 44 (20) 49 (22)
8 (0,55) 24 (11) 47 (21) 74 (34) 80 (36)
5 to 25
(0,34 to 1,7)
5 (0,34) 12 (5,4) 18 (8,2) 24 (11) 31 (14) 10 (4,5) 12 (5,4) 14 (6,4) 16 (7,3)
15 (1,0) 33 (15) 69 (31) 92 (42) 100 (45) 17 (7,7) 23 (10) 29 (13) 37 (17)
25 (1,7) 53 (24) 120 (54) 150 (68) 150 (68) 25 (11) 34 (15) 45 (20) 58 (26)
10 to 50
(0,69 to 3,4)
10 (0,7) 16 (7,3) 24 (11) 35 (16) 49 (22) 12 (5,4) 15 (6,8) 17 (7,7) 21 (9,5)
15 (1,0) 25 (11) 44 (20) 58 (26) 75 (34) 16 (7,3) 21 (9,5) 27 (12) 33 (15)
30 (2,1) 52 (24) 100 (45) 130 (59) 150 (68) 28 (13) 40 (18) 55 (25) 70 (32)
45 (3,1) 79 (36) 160 (73) 190 (86) 230 (104) 40 (18) 60 (27) 83 (38) 110 (50)
50 (3,4) 89 (40) 180 (82) 220 (100) 260 (118) 44 (20) 66 (30) 93 (42) 120 (54)
35 to 100
(2,4 to 6,9)
35 (2,4) 49 (22) 100 (45) 160 (73) 200 (91) 30 (14) 42 (19) 54 (25) 68 (31)
50 (3,4) 94 (43) 180 (82) 240 (109) 260 (118) 44 (20) 63 (29) 87 (39) 110 (50)
75 (5,2) 170 (77) 300 (136) 350 (159) 370 (168) 66 (30) 98 (44) 140 (64) 190 (86)
100 (6,9) 240 (109) 420 (191) 450 (204) 480 (218) 89 (40) 130 (59) 200 (91) 270 (123)
75 to 125
(5,2 to 8,6)
75 (5,2) 160 (73) 300 (136) 340 (154) 370 (168) 99 (45) 170 (77) 220 (100) 250 (114)
100 (6,9) 250 (114) 420 (191) 450 (204) 480 (218) 130 (59) 180 (82) 270 (123) 350 (159)
125 (8,6) 340 (154) 520 (236) 550 (250) 160 (73) 240 (109) 350 (159)
Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded.
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