Baker Hughes 13900 Series, Maintenance Manual

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Table 10: Recommended Spare Parts For Series 13900-3 Safety Relief Valve (Contd.)
Class Part Name
Quantity Parts / Same Size,
Type, Set Pressure and
Temperature Class Valves in
Service
Need Probability
Coverage
IV
Main Valve
99%
Disc Drain Plug 1/3
Base Studs 1 Set/6
114 in 2 (16)
143 in
2
(20)
176 in
2
(20)
200 in
2
(20)
Base Stud Nuts
114 in
2
(16)
143 in
2
(20)
176 in
2
(20)
200 in 2 (20)
Eye Bolts (3) 1 Set/6
Eye Bolt Lock Nuts (3) 1 Set/6
Bonnet Stud Nuts (6) 1 Set/6
Main Bonnet Plug 1/3
Pilot Valve (If Alternate B used for Class I)
Cap 1/6
Lever 1/6
Lever Pin 1/6
Cap Lock Screw 1/6
Release Nut 1/6
Release Lock Nut 1/6
Compression Screw Lock Nut 1/6
V
Main Valve
Not Applicable
Base None
Disc None
Guide None
Bonnet None
Discharge Tube Assembly None
Nameplate None
Nameplate Screws None
Drain Plug None
Pilot Valve (If Alternate B used for Class I)
Sensing Tube Assembly None
Base Flange None
Bonnet None
Nameplate None
Nameplate Screws None
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 a 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 (Contd.)