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Instruction Manual
D103565X012
∅ C Diameter of seal ring (key 25): 355.45 mm (13.994 in) nominal.
D Height of bonnet (key 7) boss: 180.77 mm (7.117 in) nominal.
E Height of ball (key 8A): 393.70 mm (15.500 in) nominal.
F Width of drive bearing (key 2) shoulder: 6.43 mm (0.253 in) nominal.
2. Calculate the width of the thrust bearing using table 3.
3. Compare the thrust washer thickness to dimension A, as calculated in table 3, to the measured value. If the
thickness differs +0.64 mm (+0.025 in), then contact your
Table 3. Thrust Bearing Calculation Table
Part Description
Valve Top to Seal Ring
Diameter of Seal Ring
Calculated
Height of Bonnet Boss
Height of Ball
Calculated
Width of Drive Bearing
Thrust Bearing Thickness A = B+∅C/2-D-E/2-F
Figure 5. Measurements for Thrust Washer Calculations
Feature
Key
Number
12 - 25
B
∅C
25
∅C/2
7
D
8A
E
E/2
2
F
B
THRUST
WASHER
∅
C
Emerson sales office
to order a replacement
Nominal Dimension
mm
in
230.91
9.091
335.45
13.994
177.73
6.997
180.77
7.117
393.70
15.500
196.85
7.750
6.43
0.253
24.59
0.968
D
F
E
SS-264 Valve
September 2021
Measured Dimension
mm
in
13
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