6 | Baker Hughes
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8
5
1
6
2
4
3
16
7
17
9
10
11
13
16
25
24
26
27
Regulator
Plug
Stem
Serial
Plate
Plug Stem
Nuts
3
2
4
1
5
7
8
6
16
27
9
10
11
15
12
13
14
28
26
25
24
29
25
Regulator
Plug
Stem
Serial
Plate
Plug Stem
Nuts
Figure 2 — Differential Pressure Actuators for 500-50, 500H-50 and 500V-50 Models Regulators
PARTS REFERENCE
High Pressure Case Design
1
Yoke
2
Spring Adjuster
3
Bushing (Incl. Ref. 2)
4
Lower Spring Seat
5
Actuator Spring
6
Actuator Stem
7
Cap Screw (L. case to yoke)
8
Diaphragm Case (Lower)
9
Diaphragm Chamber
10
Diaphragm Plate (Incl. w. Ref. 24)
11
Diaphragm
•
12
(1)
Upper Diaphragm Plate
13
Diaphragm Case (Upper)
14
(1)
Diaphragm Washer
15
(1)
Cap Screw (Diaph.case)
16
Nut (Diaph.case)
17
(2)
Stud (Diaph. case)
24
Plunger Sub-assembly
25
(3)
O-Ring
•
26
O-Ring Retainer
27
Upper Spring Seat (Incl. w. Ref. 6)
28
(1)
Locknut
29
(1)
Connection Adapter
Ref. Part Name Ref. Part Name Ref. Part Name
•
Recommended spare parts
(1)
Only on Low Pressure Case Design
(2)
Only on High Pressure Case Design
(3)
Qty: 2 on Low Pressure Case Design
Qty: 1 on High Pressure Case Design
3. Installation
On steam service, the regulator should be installed with the
actuator down so that the diaphragm will be protected by a
condensate barrier. If installed otherwise, an adequate
condensate barrier must be incorporated.
In the Spring Diaphragm Actuators, the 1/2” NPT pressure
connection is located on the upper diaphragm case (13).
In the Differential Pressure Actuators, the 1/2” NPT high
pressure connection is located on the upper diaphragm case
(13) and the 1/2” NPT low pressure connection is located on
the diaphragm chamber (9) or on the connection adapter (29).
Refer to Regulators Body S/A Instructions for installation
according to the regulator function.
Low Pressure Case Design
