Consolidated 13900 Series POSRV Maintenance Manual
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© 2018 Baker Hughes, a GE company. All rights reserved.
Table 10: Recommended Spare Parts For Series 13900-3 Safety Relief Valve
Class
Part Name
Quantity Parts / Same Size,
Type, Set Pressure and
Temperature Class Valves in
Service
Need Probability
Coverage
I
Main Valve
70%
Seat Seal
1/1
Guide Seal (1)
1/1
Back-Up Ring (2)
2/1
Bonnet Gasket (1)
1/1
Sensing Tube Flange Gasket (2)
2/1
Fitting Seal (2)
2/1
Disc Retainer (1)
1/3
Retainer Lock Ring (1)
1/3
Pilot Valve
Alternate A (See Note 1)
Complete Spare Pilot Valve
1/1
Alternate B (See Note 2)
Disc
1/1
Disc Retainer Ring
1/1
Adj. Ring Pin
1/1
Bonnet Gasket
1/1
Adj. Ring Pin Gasket
1/1
Seal
1/1
Sealing Wire
1/1
II
Main Valve
85%
Floating Washer
1/3
Floating Washer Retainer
1/3
Floating Washer Retainer Lock Ring
1/3
Pilot Valve (If Alternate B used for Class I)
Guide
1/6
Guide Pin
1/6
Spindle Assembly
1/6
Disc Holder
1/6
Disc Collar
1/6
III
Main Valve
95%
Disc Spring
1/6
Disc Spring Ring
1/6
Pilot Valve (If Alternate B used for Class I)
Base
1/6
Adj. Ring
1/6
Spring
1/6
Spring Washer (Bottom)
1/6
Spring Washer (Top)
1/6
Compression Screw
1/6
Note 1: Alternate A: If an auxiliary boiler is not available at the installation site for testing the pilot valve on steam at set
pressure, it is recommended that spare pilot valves, which have been tested on steam be stocked in 1/1 ratio.
Note 2: Alternate B: If an adequate auxiliary boiler is available, stocking replacement parts for the pilot valves are
recommended as the most economical approach.
XXIII. Recommended Spare Parts
