9. Remove the Cover Plate Gasket.
10. For “D” through “N” orifice, removed Disc Holder
and Guide.
For “P” through “U” orifices, install the Disc Holder
Removal Tool (BHGE P/N 4464604) in the top of
the Disc Holder as shown in Figure 21. Lift out and
remove the Guide and Disc Holder. Remove the
Lifting Tool from the top of the Disc Holder.
On “V” and “W” orifice valves thread two 5/8-11 NC
Standard Eye Bolts into the top of the Disc Holder
as shown in Figure 22. Lift out and remove the
Guide and Disc Holder. Remove the Eye Bolts from
the top of the Disc Holder.
11. Lift the Guide off the Disc Holder. If the valve has
a Bellows avoid damage to the gasket seating
surfaces, and if present the convolutions or the
flange section of the Bellows.
Eye Bolts
Disc Holder
Guide
Top of Base
Lifting Tool
Guide
Disc Holder
Top of Base
Figure 21: Disc Holder Removal Tool (P-U)
Disc Holder
9
Disc Retainer
8
Thermodisc
7
Figure 18: Thermodisc
Disc Holder
9
O-Ring Seat Seal
19
O-Ring Retainer
18
Retainer Lockscrew
17
Figure 19: O-Ring Seat (D-J Orifices)
Disc Holder
9
Disc Retainer
8
O-Ring Seat Seal
19
Disc
7
O-Ring Retainer
18
Retainer Lockscrew
17
Figure 20: O-Ring Seat (K -W Orifices)
Figure 22: Disc Holder Removal Tool (V & W)
XIII. Disassembly of the 2900 POSRV (Contd.)
32 | BHGE
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