Emerson SR8 Datasheet Page 17
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Bulletin 71.4:SR8
17
SPRING
RANGE,
PSIG (bar)
SET
PRESSURE,
PSIG (bar)
CAPACITIES IN GPM (l/min) WATER 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) 42 (159) 60 (227) 85 (322) 100 (379) 28 (106) 48 (182) 64 (242) 77 (291)
15 (1,0) 50 (189) 82 (310) 110 (416) 140 (530) 42 (159) 64 (242) 81 (307) 97 (367)
25 (1,7) 78 (295) 130 (492) 180 (681) 190 (719) 55 (208) 83 (314) 110 (416) 130 (492)
15 to 50
(1,0 to 3,4)
15 (1,0) 38 (144) 59 (223) 88 (333) 120 (454) 40 (151) 60 (227) 77 (291) 91 (344)
25 (1,7) 53 (201) 100 (379) 160 (606) 190 (719) 45 (170) 78 (295) 98 (371) 120 (454)
50 (3,4) 70 (265) 150 (568) 230 (871) 240 (908) 79 (299) 130 (492) 170 (643) 200 (757)
25 to 60
(1,7 to 4,1)
25 (1,7) 49 (185) 90 (341) 130 (492) 170 (643) 45 (170) 74 (280) 99 (375) 120 (454)
50 (3,4) 75 (284) 150 (568) 230 (871) 240 (908) 73 (276) 120 (454) 160 (606) 190 (719)
60 (4,1) 160 (606) 240 (908) 280 (1060) 99 (375) 160 (606) 210 (795)
Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded.
Table 8. Liquid Capacities (continued)
SPRING RANGE,
PSIG (bar)
SET
PRESSURE,
PSIG (bar)
CAPACITIES IN GPM (l/min) WATER 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) 2.9 (11) 3.9 (15) 4.5 (17) 5.5 (21)
Not Available5 (0,34) 3.6 (14) 6.7 (25) 12 (45) 18 (68)
8 (0,55) 4.4 (17) 9.4 (36) 20 (76) 30 (114)
5 to 25
(0,34 to 1,7)
5 (0,34) 3.2 (12) 4.0 (15) 6.5 (25) 7.8 (30) 3.2 (12) 3.7 (14) 4.6 (17) 5.5 (21)
15 (1,0) 7.6 (29) 18 (68) 32 (121) 37 (140) 5.3 (20) 7.1 (27) 11 (42) 14 (53)
25 (1,7) 11 (42) 29 (110) 53 (201) 60 (227) 7.1 (27) 9.9 (37) 15 (57) 21 (79)
15 to 70
(1,0 to 4,8)
15 (1,0) 7.6 (29) 12 (45) 18 (68) 27 (102) 5.6 (21) 6.9 (26) 9.5 (36) 13 (49)
30 (2,1) 27 (102) 42 (159) 47 (178) 53 (201) 9.4 (36) 15 (57) 22 (83) 29 (110)
45 (3,1) 41 (155) 63 (238) 67 (254) 72 (273) 12 (45) 21 (79) 30 (114) 41 (155)
50 (3,4) 45 (170) 69 (261) 72 (273) 77 (291) 13 (49) 22 (83) 33 (125) 44 (167)
60 (4,1) 52 (197) 80 (303) 83 (314) 87 (329) 14 (53) 25 (95) 38 (144) 50 (189)
70 (4,8) 59 (223) 89 (337) 92 (348) 95 (360) 15 (57) 28 (106) 42 (159) 56 (212)
25 to 90
(1,7 to 6,2)
35 (2,4) 11 (42) 19 (72) 28 (106) 37 (140) 6.3 (24) 8.6 (33) 11 (42) 15 (57)
50 (3,4) 25 (95) 46 (174) 54 (204) 61 (231) 10 (38) 16 (61) 23 (87) 30 (114)
75 (5,2) 42 (159) 79 (299) 88 (333) 93 (352) 15 (57) 26 (98) 37 (140) 51 (193)
90 (6,2) 50 (189) 96 (363) 100 (379) 110 (416) 17 (64) 31 (117) 45 (170) 60 (227)
35 to 100
(2,4 to 6,9)
35 (2,4) 17 (64) 24 (91) 35 (132) 53 (201) 8.7 (33) 12 (45) 16 (61) 21 (79)
50 (3,4) 28 (106) 45 (170) 58 (220) 70 (265) 11 (42) 17 (64) 26 (98) 36 (136)
75 (5,2) 42 (159) 72 (273) 86 (326) 94 (356) 14 (53) 24 (91) 39 (148) 54 (204)
100 (6,9) 53 (201) 93 (352) 110 (416) 110 (416) 17 (64) 30 (114) 49 (185) 69 (261)
75 to 125
(5,2 to 8,6)
75 (5,2) 47 (178) 80 (303) 91 (344) 94 (356) 29 (110) 44 (167) 54 (204) 57 (216)
100 (6,9) 55 (208) 100 (379) 110 (416) 110 (416) 36 (136) 48 (182) 66 (250) 80 (303)
125 (8,6) 75 (284) 110 (416) 120 (454) 40 (151) 58 (220) 80 (303)
Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded.
SPRING RANGE,
PSIG (bar)
SET
PRESSURE,
PSIG (bar)
CAPACITIES IN GPM (l/min) WATER 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) 32 (121) 45 (170) 72 (273) 95 (360) 23 (87) 33 (125) 42 (159) 52 (197)
15 (1,0) 53 (201) 99 (375) 120 (454) 120 (454) 34 (129) 44 (167) 55 (208) 69 (261)
25 (1,7) 88 (333) 140 (530) 140 (530) 150 (568) 41 (155) 56 (212) 75 (284) 92 (348)
15 to 50
(1,0 to 3,4)
15 (1,0) 46 (174) 68 (257) 96 (363) 120 (454) 26 (98) 37 (140) 45 (170) 49 (185)
25 (1,7) 63 (238) 110 (416) 140 (530) 150 (568) 36 (136) 50 (189) 68 (257) 83 (314)
50 (3,4) 130 (492) 170 (643) 180 (681) 190 (719) 53 (201) 88 (333) 120 (454) 150 (568)
25 to 60
(1,7 to 4,1)
25 (1,7) 58 (220) 100 (379) 140 (530) 150 (568) 36 (136) 50 (189) 69 (261) 85 (322)
50 (3,4) 100 (379) 180 (681) 190 (719) 190 (719) 51 (193) 82 (310) 110 (416) 140 (530)
60 (4,1) 150 (568) 210 (795) 220 (833) 71 (269) 120 (454) 160 (606)
Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded.
Table 8. Liquid Capacities (continued)
Table 8. Liquid Capacities (continued)
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