Fisher RSS - Page 6

Instruction Manual
D101299X012
RSS Valve
July 2017
6
Figure 3. Downstream/Outlet Pressure Ratings (Positive Pressure Service)
HEAVY‐DUTY BELLOWS WITH METAL SUPPORT RINGS
NOTE: THE LINER DOES NOT LIMIT THE DOWNSTREAM PRESSURE RATING IN POSITIVE PRESSURE SERVICES.
E0981
68
122 212
302
360_F
180_C
1501005020
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
gauge pressure (bar)
1
0
232
203
188
174
159
145
130
116
101
87
72.5
58
43.5
gauge pressure (psi)
14.5
0
217
29
−29
−20
STANDARD PTFE BELLOWS
Figure 4. Downstream/Outlet Pressure Ratings (Vacuum Service)
E0980
68 122 212 302
360_F
THE PFA LINER CANNOT
BE USED IN THIS AREA
vacuum (bar)
180_C
1501005020
1
0.5
0.3
0.2
0.1
0.05
0.03
0.02
0.01
0.005
0.003
0.002
0.001
vacuum (psia)
14.5
7.25
4.35
2.9
1.45
0.72
0.43
0.29
0.14
0.07
0.04
0.03
0.015
PFA LINING