Data Sheet
Bulletin 71.1:SR5
20
SPRING RANGE,
PSIG (bar)
SET PRESSURE,
PSIG (bar)
INLET PRESSURE,
PSIG (bar)
CAPACITIES IN SCFH (Nm
3
/h) OF AIR AT % DROOP
3-inch (DN 80)
Elastomer Diaphragm Metal Diaphragm
10% 20% 30% 10% 20% 30%
10 to 25
(0,7 to 1,7)
10 (0,7)
25 (1,7) 10330 (277) 15820 (424) 22610 (606) 7360 (197) 10460 (280) 13160 (353)
50 (3,4) 15200 (407) 23070 (618) 32390 (868) 9500 (255) 14400 (386) 16980 (455)
15 (1,0)
25 (1,7) 11770 (315) 19290 (517) 28620 (767) 7800 (209) 11260 (302) 16830 (451)
50 (3,4) 20010 (536) 31950 (856) 42310 (1134) 11930 (320) 15640 (419) 23040 (617)
25 (1,7)
50 (3,4) 28270 (758) 44040 (1180) 54820 (1469) 14580 (391) 20410 (547) 30850 (827)
75 (5,2) 29260 (784) 51980 (1393) 65180 (1747) 17040 (457) 28150 (754) 40320 (1081)
15 to 50
(1,0 to 3,4)
15 (1,0)
25 (1,7) 11610 (311) 16360 (438) 22280 (597) 6940 (186) 10480 (281) 14210 (381)
50 (3,4) 15430 (414) 23210 (622) 32820 (880) 11580 (310) 15790 (423) 21480 (576)
75 (5,2) 20490 (549) 30710 (823) 39920 (1070) 15470 (415) 20550 (551) 27820 (746)
100 (6,9) 26040 (698) 38370 (1028) 45810 (1228) 18730 (502) 24750 (663) 33300 (892)
125 (8,6) 31340 (840) 45530 (1220) 52030 (1394) 21450 (575) 28410 (761) 38010 (1019)
25 (1,7)
50 (3,4) 19300 (517) 33920 (909) 45800 (1227) 14930 (400) 19480 (522) 27370 (734)
75 (5,2) 26550 (712) 42510 (1139) 57260 (1535) 17730 (475) 25770 (691) 37500 (1005)
100 (6,9) 30680 (822) 49600 (1329) 65540 (1756) 20430 (548) 32050 (859) 45090 (1208)
125 (8,6) 33650 (902) 53920 (1445) 71750 (1923) 23360 (626) 37990 (1018) 50980 (1366)
50 (3,4)
75 (5,2) 40670 (1090) 62920 (1686) 81420 (2182) 19840 (532) 36300 (973) 53810 (1442)
100 (6,9) 47050 (1261) 76120 (2040) 96060 (2574) 27060 (725) 45620 (1223) 68010 (1823)
125 (8,6) 53980 (1447) 86050 (2306) 110740 (2968) 31910 (855) 52980 (1420) 77540 (2078)
150 (10) 60610 (1624) 93900 (2517) 121170 (3247) 35630 (955) 59430 (1593) 84540 (2266)
25 to 75
(1,7 to 5,2)
25 (1,7)
50 (3,4) 18130 (486) 31820 (853) 44870 (1203) 14070 (377) 21300 (571) 29290 (785)
75 (5,2) 22000 (590) 38310 (1027) 52320 (1402) 16780 (450) 26700 (716) 36700 (984)
100 (6,9) 27910 (748) 45220 (1212) 59530 (1595) 19280 (517) 31760 (851) 43110 (1155)
125 (8,6) 35170 (943) 52060 (1395) 66380 (1779) 22280 (597) 36580 (980) 48740 (1306)
150 (10) 41190 (1104) 58350 (1564) 72790 (1951) 25790 (691) 41290 (1107) 53820 (1442)
50 (3,4)
75 (5,2) 35150 (942) 57170 (1532) 74230 (1989) 19600 (525) 34970 (937) 51080 (1369)
100 (6,9) 41260 (1106) 70230 (1882) 92620 (2482) 27180 (728) 42170 (1130) 63270 (1696)
125 (8,6) 51510 (1380) 80560 (2159) 104840 (2810) 31610 (847) 50250 (1347) 72830 (1952)
150 (10) 58210 (1560) 89600 (2401) 114040 (3056) 34710 (930) 58400 (1565) 80800 (2165)
175 (12) 63000 (1688) 98770 (2647) 123380 (3307) 38270 (1026) 65840 (1765) 88170 (2363)
75 (5,2)
100 (6,9) 47530 (1274) 74720 (2002) 100670 (2698) 27500 (737) 50390 (1350) 78720 (2110)
125 (8,6) 55240 (1480) 95570 (2561) 121120 (3246) 35110 (941) 60710 (1627) 95460 (2558)
150 (10) 62730 (1681) 111140 (2979) 138550 (3713) 40000 (1072) 68630 (1839) 106340 (2850)
175 (12) 69980 (1875) 121490 (3256) 152970 (4100) 47550 (1274) 76930 (2062) 111250 (2982)
Table 8. Air Capacities for 3-inch (DN 80) Body (continued)