Emerson Tartarini PRX Series - Detailed Maintenance for PRX Pilot Components; Lower Case Maintenance and Disassembly; Upper Case Maintenance and Reassembly; Specific Component and Model Maintenance

6
PRX Series
27
28
29
30
31
30
28
32
33
27
28
29
30
31
34
28
B
S
L
R
D
B
S
D
35
4
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
14
18191311
20
10
11
21
22
23
24
A
A
B
A
18
11
26
25
LM/1390
TYPE PRX/120 AND PRX/125
Figure 4. Type PRX/120 and PRX/125 Pilots
AP VERSION
TYPE PRX/120 VERSION - SECTION A-A TYPE PRX/125 VERSION - SECTION A-A
CODE BOOT TRIM TUBE AND HARD TRIM
A Downstream impulse Downstream impulse
B Outlet discharge Pilot feed
S Pilot feed Outlet discharge
L
To regulator loading
pressure chamber
To regulator loading
pressure chamber
Table 3. Type PRX/120 Connections
SCHEMATIC ASSEMBLIES