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Bulletin 71.4:SR8

Table 6. Air Capacities (continued)

SPRING

RANGE,

PSIG (bar)

SET

PRESSURE,

PSIG (bar)

CAPACITIES IN SCFH (Nm

/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

/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.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 19 20

Bulletin 71.4:SR8 1

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