Sensus 121 Series - Page 12

22
23
25
24
26
27
30
33
34
35
15
16a
16b
13
19
18
38
37
32
2
3
9
45
a
b
c
d
f
h
11
29c
29
a
b
c
d
12
1
21
19a
14b
14a
21a
1" NPT Vent
Connection
2
1
3
9
21a
a
b
c
d
f
h
11
29a
29
45
21
24
1" NPT Vent
Connection
22
23
g
25
26
27
2a
1a
2
21a
a
b
c
d
e
f
g
11
h
25 26
27
29a
29
3a
4
5
7a
7b
9
21
45
21
22
23
24
High Pressure
Spring Adjustment
1" NPT Vent
connection
1/4" NPT
Control
line
connection
121-12 – Back Pressure
121-8 HP – High Pressure – Back Pressure
121-8 – Back Pressure
Installation and Maintenance
Model 121 Regulators
1-1/2" – 2" – 2-1/2"
Standard, Differential, Atmospheric or Zero Governors
12
Pipe Sizes
(inlet x outlet) Screwed, NPT
1-1/2" x 1-1/2"
1-1/2" x 2"
2" x 2"
2-1/2" x 2-1/2"
Flanged ANSI 125 lb. FF
2" x 2"