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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 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) 180 (4,8) 220 (5,9) 300 (8,0) 370 (9,9)

Not Available5 (0,34) 370 (9,9) 640 (17) 990 (27) 1110 (30)

8 (0,55) 550 (15) 1060 (28) 1670 (45) 1840 (49)

5 to 25

(0,34 to 1,7)

5 (0,34) 270 (7,2) 400 (11) 550 (15) 700 (19) 230 (6,2) 260 (7,0) 310 (8,3) 370 (9,9)

15 (1,0) 740 (20) 1550 (42) 2080 (56) 2280 (61) 400 (11) 520 (14) 660 (18) 830 (22)

25 (1,7) 1200 (32) 2700 (72) 3600 (96) 3850 (103) 560 (15) 770 (21) 1020 (27) 1300 (35)

10 to 50

(0,69 to 3,4)

10 (0,69) 360 (9,6) 550 (15) 800 (21) 1100 (29) 270 (7,2) 330 (8,8) 390 (10) 480 (13)

15 (1,0) 570 (15) 990 (27) 1310 (35) 1700 (46) 360 (9,6) 480 (13) 600 (16) 750 (20)

30 (2,1) 1180 (32) 2330 (62) 2850 (76) 3500 (94) 640 (17) 920 (25) 1240 (33) 1590 (43)

45 (3,1) 1800 (48) 3660 (98) 4390 (118) 5300 (142) 910 (24) 1350 (36) 1890 (51) 2420 (65)

50 (3,4) 2000 (54) 4100 (110) 4900 (131) 5900 (158) 1000 (27) 1500 (40) 2100 (56) 2700 (72)

35 to 100

(2,4 to 6,9)

35 (2,4) 1100 (29) 2350 (63) 3700 (99) 4800 (129) 680 (18) 940 (25) 1220 (33) 1540 (41)

50 (3,4) 2120 (57) 4000 (107) 5430 (146) 6480 (174) 980 (26) 1420 (38) 1980 (53) 2590 (69)

75 (5,2) 3810 (102) 6750 (181) 8320 (223) 9290 (249) 1490 (40) 2210 (59) 3240 (87) 4350 (117)

100 (6,9) 5500 (147) 9500 (255) 11200 (300) 12100 (324) 2000 (54) 3000 (80) 4500 (121) 6100 (163)

75 to 125

(5,2 to 8,6)

75 (5,2) 3660 (98) 6670 (179) 7760 (208) 8680 (233) 2240 (60) 3760 (101) 4910 (132) 5710 (153)

100 (6,9) 5570 (149) 9520 (255) 10540 (282) 11300 (303) 2860 (77) 4080 (109) 6100 (163) 7800 (209)

125 (8,6) 7650 (205) 11690 (313) 12680 (340) 3510 (94) 5510 (148) 7940 (213)

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

Table 6. Air Capacities

SPRING

RANGE,

PSIG (bar)

SET

PRESSURE,

PSIG (bar)

CAPACITIES IN SCFH (Nm

/h) OF AIR 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) 140 (3,8) 180 (4,8) 220 (5,9) 260 (7,0

Not Available5 (0,34) 210 (5,6) 320 (8,6) 410 (11) 500 (13)

8 (0,55) 270 (7,2) 450 (12) 600 (16) 730 (20)

5 to 25

(0,34 to 1,7)

5 (0,34) 160 (4,3) 230 (6,2) 300 (8,0) 400 (11) 120 (3,2) 140 (3,8) 160 (4,3) 190 (5,1)

15 (1,0) 430 (12) 720 (19) 900 (24) 1050 (28) 240 (6,4) 340 (9,1) 430 (12) 550 (15)

25 (1,7)

700 (19) 1200 (32) 1500 (40) 1700 (46) 350 (9,4) 540 (14) 700 (19) 900 (24)

10 to 50

(0,69 to 3,4)

10 (0,7) 240 (6,4) 400 (11) 560 (15) 730 (20) 170 (4,6) 210 (5,6) 260 (7,0) 310 (8,3)

15 (1,0) 390 (10) 660 (18) 830 (22) 1000 (27) 220 (5,9) 300 (8,0) 400 (11) 500 (13)

30 (2,1) 850 (23) 1450 (39) 1630 (44) 1820 (49) 390 (10) 570 (15) 830 (22) 1060 (28)

45 (3,1) 1300 (35) 2240 (60) 2430 (65) 2630 (70) 550 (15) 840 (23) 1260 (34) 1610 (43)

50 (3,4) 1450 (39) 2500 (67) 2700 (72) 2900 (78) 600 (16) 930 (25) 1400 (38) 1800 (48)

35 to 100

(2,4 to 6,9)

35 (2,4) 750 (20) 1260 (34) 1750 (47) 2150 (58) 420 (11) 640 (17) 860 (23) 1130 (30)

50 (3,4) 1130 (30) 1920 (51) 2520 (68) 2970 (80) 610 (16) 980 (26) 1350 (36) 1790 (48)

75 (5,2) 1770 (47) 3010 (81) 3810 (102) 4330 (116) 930 (25) 1540 (41) 2180 (58) 2900 (78)

100 (6,9) 2400 (64) 4100 (110) 5100 (137) 5700 (153) 1250 (34) 2100 (56) 3000 (80) 4000 (107)

75 to 125

(5,2 to 8,6)

75 (5,2) 2650 (71) 3590 (96) 3960 (106) 4100 (110) 2060 (55) 3160 (85) 3650 (98) 4100 (110)

100 (6,9) 3310 (89) 4550 (122) 4910 (132) 5580 (150) 2610 (70) 4190 (112) 4360 (117) 4950 (133)

125 (8,6) 4390 (118) 5250 (141) 5770 (155) 2970 (80) 4870 (131) 5310 (142)

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 19 20

Bulletin 71.4:SR8 1

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