Page 507 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

Applied Process Design 473

Conservation Breather Vent
Certified Air Flow Curves
PRESSURE

28
Certif ied Air Flow
27 PROT ECTOSEAL
26 Bre ather Vent
85480
25 8548H
8"SIZE
24
23
22
21
12
20
i9
c: s:
E 18 !,a?
::,
8
<ii 17 :,
CT
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<ii
0 16 a.
(/)
(/) a,
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o
s: i5 c:
o
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-= 0
e 14 8 �
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(/) 13 �
£ 0..
-"' 12 -"'
c:
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11
10
Facilities and equipment used
9 comply with API 2000
8 Verified by:
Pittsburgh Testing Laboratory
7 Flow points indicated by * 4
verified by:
6 Pittsburgh Testing Laboratory
Curves Certified by:
5
PROTECTOSEAL COMPANY
4
2
3
2 1
3/4
1/2
Air Flow In Thousands of SCFH
Figure 7-378. Performance curve for conservation vent, dead weight type for pressure, 8 inch size. By permission, The Protectoseal Co.