Emerson SR8 Datasheet Page 10

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Bulletin 71.4:SR8
10
Table 6. Air Capacities (continued)
SPRING
RANGE,
PSIG (bar)
SET
PRESSURE,
PSIG (bar)
CAPACITIES IN SCFH (Nm
3
/h) OF AIR 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) 590 (16) 850 (23) 1070 (29) 1520 (41)
Not Available
5 (0,34) 930 (25) 1660 (44) 2400 (64) 3270 (88)
8 (0,55) 1380 (37) 2450 (66) 3640 (98) 4680 (125)
5 to 25
(0,34 to 1,7)
5 (0,34) 700 (19) 950 (25) 1250 (34) 1650 (44) 520 (14) 660 (18) 840 (23) 1000 (27)
15 (1,0) 1480 (40) 2750 (74) 4270 (114) 5430 (146) 960 (26) 1380 (37) 2020 (54) 2730 (73)
25 (1,7) 2500 (67) 5000 (134) 7900 (212) 10000 (268) 1400 (38) 2100 (56) 3200 (86) 4450 (119)
15 to 70
(1,0 to 4,8)
15 (1,0)
1030 (28) 1990 (53) 3180 (85) 4230 (113) 900 (24) 1200 (32) 1600 (43) 2100 (56)
30 (2,1) 2740 (73) 5760 (154) 7790 (209) 9490 (254) 2130 (57) 3330 (89) 4870 (131) 6520 (175)
45 (3,1) 4450 (119) 9520 (255) 12410 (333) 14740 (395) 3350 (90) 5450 (146) 8150 (218) 10940 (293)
50 (3,4) 5020 (135) 10780 (289) 13950 (374) 16490 (442) 3760 (101) 6160 (165) 9240 (248) 12410 (333)
60 (4,1) 6160 (165) 13290 (356) 17020 (456) 20000 (536) 4580 (123) 7580 (203) 11420 (306) 15350 (411)
70 (4,8) 7300 (196) 15800 (423) 20100 (539) 23500 (630) 5400 (145) 9000 (241) 13600 (364) 18300 (490)
25 to 90
(1,7 to 6,2)
35 (2,4) 1600 (43) 2700 (72) 4100 (110) 5900 (158) 1500 (40) 2200 (59) 3200 (86) 4400 (118)
50 (3,4) 3430 (92) 6760 (181) 10210 (274) 12500 (335) 2700 (72) 4600 (123) 6910 (185) 9450 (253)
75 (5,2) 6470 (173) 13540 (363) 20390 (546) 23500 (630) 4700 (126) 8600 (230) 13090 (351) 17850 (478)
90 (6,2)
8300 (222) 17600 (472) 26500 (710) 30100 (807) 5900 (158) 11000 (295) 16800 (450) 22900 (614)
35 to 100
(2,4 to 6,9)
35 (2,4) 2300 (62) 3900 (105) 6000 (161) 8300 (222) 1650 (44) 2400 (64) 3400 (91) 4600 (123)
50 (3,4) 3870 (104) 7200 (193) 11190 (300) 13930 (373) 2750 (74) 4570 (122) 6790 (182) 9150 (245)
75 (5,2) 6480 (174) 12700 (340) 19850 (532) 23320 (625) 4570 (122) 8180 (219) 12450 (334) 16720 (448)
100 (6,9) 9100 (244) 18200 (488) 28500 (764) 32700 (876) 6400 (172) 11800 (316) 18100 (485) 24300 (651)
75 to 125
(5,2 to 8,6)
75 (5,2) 14200 (381) 20740 (556) 23630 (633) 26090 (699) 9400 (252) 14480 (388) 18280 (490) 18990 (509)
100 (6,9) 20550 (551) 28460 (763) 32210 (863) 34940 (936) 11530 (309) 18640 (500) 21420 (574) 26050 (698)
125 (8,6) 24920 (668) 35760 (958) 40760 (1092) 15000 (402) 23880 (640) 28790 (772)
Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded.
Table 6. Air Capacities (continued)
SPRING
RANGE,
PSIG (bar)
SET
PRESSURE,
PSIG (bar)
CAPACITIES IN SCFH (Nm
3
/h) OF AIR 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) 650 (17) 930 (25) 1180 (32) 1670 (45)
Not Available5 (0,34) 1020 (27) 1830 (49) 2640 (71) 3600 (96)
8 (0,55) 1520 (41) 2700 (72) 4000 (107) 5150 (138)
5 to 25
(0,34 to 1,7)
5 (0,34) 760 (20) 1040 (28) 1380 (37) 1820 (49) 570 (15) 730 (20) 920 (25) 1100 (29)
15 (1,0) 1620 (43) 3030 (81) 4700 (126) 5970 (160) 1060 (28) 1520 (41) 2220 (59) 3000 (80)
25 (1,7) 2750 (74) 5500 (147) 8690 (233) 11000 (295) 1540 (41) 2310 (62) 3520 (94) 4900 (131)
15 to 70
(1,0 to 4,8)
15 (1,0) 1130 (30) 2190 (59) 3500 (94) 4650 (125) 990 (27) 1320 (35) 1760 (47) 2310 (62)
30 (2,1) 3010 (81) 6330 (170) 8570 (230) 10430 (280) 2340 (63) 3660 (98) 5360 (144) 7170 (192)
45 (3,1) 4900 (131) 10480 (281) 13650 (366) 16220 (435) 3690 (99) 6000 (161) 8960 (240) 12030 (322)
50 (3,4) 5520 (148) 11860 (318) 15340 (411) 18140 (486) 4140 (111) 6780 (182) 10160 (272) 13650 (366)
60 (4,1) 6780 (182) 14620 (392) 18730 (502) 22000 (590) 5040 (135) 8340 (224) 12560 (337) 16890 (453)
70 (4,8) 8030 (215) 17380 (466) 22110 (593) 25850 (693) 5940 (159) 9900 (265) 14960 (401) 20130 (539)
25 to 90
(1,7 to 6,2)
35 (2,4) 1760 (47) 2970 (80) 4510 (121) 6490 (174) 1650 (44) 2420 (65) 3520 (94) 4840 (130)
50 (3,4) 3770 (101) 7440 (199) 11230 (301) 13750 (369) 2970 (80) 5060 (136) 7600 (204) 10390 (278)
75 (5,2) 7120 (191) 14890 (399) 22430 (601) 25850 (693) 5170 (139) 9460 (254) 14400 (386) 19640 (526)
90 (6,2) 9130 (245) 19360 (519) 29150 (781) 33110 (887) 6490 (174) 12100 (324) 18480 (495) 25190 (675)
35 to 100
(2,4 to 6,9)
35 (2,4) 2530 (68) 4290 (115) 6600 (177) 9130 (245) 1820 (49) 2640 (71) 3740 (100) 5060 (136)
50 (3,4) 4260 (114) 7920 (212) 12310 (330) 15320 (411) 3020 (81) 5030 (135) 7470 (200) 10060 (270)
75 (5,2) 7130 (191) 13970 (374) 21830 (585) 25650 (687) 5030 (135) 9000 (241) 13690 (367) 18400 (493)
100 (6,9) 10010 (268) 20020 (537) 31350 (840) 35970 (934) 7040 (189) 12980 (348) 19910 (534) 26730 (716)
75 to 125
(5,2 to 8,6)
75 (5,2) 15080 (404) 20360 (546) 23670 (634) 26040 (698) 9290 (249) 14970 (401) 19070 (511) 20510 (550)
100 (6,9) 19200 (515) 28690 (769) 31780 (852) 34820 (933) 12660 (339) 20040 (537) 24040 (644) 30340 (813)
125 (8,6) 27700 (742) 36570 (980) 40860 (1095) 15690 (420) 22930 (615) 33290 (892)
Shaded areas indicate conditions where maximum differential pressure for the spring range is exceeded.
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