Disassembly; Cleaning - Baker Hughes Consolidated 19000 Series Instruction Manual

XII. Disassembly of 19000 Series SRV (Contd.)
B. Disassembly
1. Metal Seat Valves
a. Remove the cap (18) (including lifting gear, if any);
then, remove the cap (17) gasket.
b. Measure the position of the valve adjusting screw
(12) and record before removal. Measure from the
top of the screw to the adjusting screw locknut (13).
c. Loosen the adjusting screw locknut (13) and
remove the adjusting screw (12) from the bonnet
(6).
d. Unscrew the bonnet (6) from the base (1).
e. Remove the spindle (9), spring (11), and spring
washers (10).
f. Remove the guide (5), disc holder (4), and disc (2)
from the base (1).
2. O-Ring Seat Seal Valves (DA)
(Figure 5)
Follow steps (a) through (e) for Metal Seat Valves above.
f. Remove the guide (5) and O-ring disc holder
assembly from the base.
g. Remove the O-ring retainer lockscrew (36) and the
O-ring retainer (3).
h. Carefully remove the O-ring Seat Seal (37). Be sure
not to damage the O-ring groove in the disc holder (4).
3. 19096M-DA-BP Valves
a. Remove the cap (18) (including lifting gear, if any);
then remove the cap gasket (17).
b. Measure the position of the valve adjusting screw
(12) and record before removal. Measure from the
top of the screw to the adjusting screw locknut (13).
c. Loosen the adjusting screw locknut (13) and remove
the adjusting screw (12) from the bonnet top (7). (d)
Unscrew the bonnet top (7) from the bonnet bottom
(8).
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(Figure 1)
(Figure 6)
e. Remove the spindle (9), backup plate (39), spring
(11) and spring washers (10).
f. Unscrew the bonnet bottom (7) from the base (1).
g. Remove the guide (5) and O-ring retainer (3).
h. Remove the retainer lockscrew (36) and the O-ring
retainer (3).
i. Carefully remove the seat O-ring (37). Be sure not to
damage the O-ring groove in the disc holder (4)
C. Cleaning
19000 Series Safety Relief Valve internal parts may be
cleaned with industrial solvents, cleaning solutions and wire
brushes.
If you are using cleaning solvents, take precautions to
protect yourself from potential danger from breathing fumes,
chemical burns or explosion. See the solvent's Material
Safety Data Sheet for safe handling recommendations and
personal protective equipment. It is not recommended to
"sandblast" internal parts as it can reduce the dimensions
of the parts. The base (1), bonnet (6) and cap (18) castings
may be sandblasted with care not to erode internal surfaces
or damage machined surfaces. If grit blasting is required, the
use of glass bead material is recommended.
Consolidated 19000 Series Safety Relief Valve Instruction Manual
Follow recommendations
for safe handling in the
solvent's Material Safety
Data Sheet and observe
safe practices for any
cleaning method.
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