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Baker Hughes
© 2020 Baker Hughes Company. All rights reserved.
1511 Series Flat Solid Disc Machining Dimensions
G
J
H
F
Figure 7: HP Flat Solid Disc
1. When (F) dimension is reduced to .015” (0.38 mm) for H
– N orifices, or .026” (0.66 mm) for P – Q orifices, restore
the dimensions indicated in Table 5b. Do not re-machine
once minimum (H or J) dimensions are reached. Disc is
to be discarded at this point.
D
C
N
15
0
45
0
Figure 8: LP Flat Solid Disc
All Orifices - 124 psig & below
1. All other dimensions identical to values found in Tables 5a & 5b
Table 5a: Replacement Criteria
Orifice
H min.
J min.
in.
mm
in.
mm
H
1.140
28.96
.303
7.70
J
1.359
34.52
.348
8.84
K
1.453
36.91
.380
9.65
L
1.797
45.64
.412
10.46
M
1.859
47.22
.474
12.04
N
2.109
53.57
.536
13.61
P
2.739
69.57
.645
16.38
Q
3.547
90.09
.714
18.14
Table 5b: Rework / Inspection Dimensions
Orifice
F
+.002/-.003 in.
(+0.05/-0.08 mm)
(1)
G
in.
mm
in.
mm
H
.028
0.71
.062
± .007
1.57
± 0.18
J
.028
0.71
.062
± .005
1.57
± 0.13
K
.028
0.71
.062
± .007
1.57
± 0.18
L
.028
0.71
.062
± .007
1.57
± 0.18
M
.028
0.71
.062
± .007
1.57
± 0.18
N
.028
0.71
.062
± .007
1.57
± 0.18
P
.039
0.99
.078
± .007
1.98
± 0.18
Q
.039
0.99
.107
+
-
.003
.002
2.72
+
-
0.08
0.05
Table 6: Rework Inspection Dimensions
(1)
Orifice
C
D
N
in.
mm
in.
mm
in.
mm
H
1.552 ±.005 39.42 ±0.13 1.349 ±.002 34.26 ±0.05 .053 ±.002 1.35 ±0.05
J
1.983 ±.005 50.37 ±0.13 1.683 ±.002 42.75 ±0.05 .056 +-.002
.003 1.42
+
-
0.05
0.08
K
2.372 ±.005 60.25 ±0.13 1.977 ±.002 50.22 ±0.05 .079 ±.002 2.01 ±0.05
L
2.948 ±.005 74.88 ±0.13 2.418 ±.002 61.42 ±0.05 .096 ±.002 2.44 ±0.05
M
3.307 ±.005 84.00 ±0.13 2.722 ±.002 69.14 ±0.05 .102 ±.002 2.59 ±0.05
N
3.639 ±.005 92.43 ±0.13 3.011 ±.003 76.48 ±0.08 .111 ±.002 2.82 ±0.05
P
4.206 ±.005 106.83 ±0.13 3.608 ±.003 91.64 ±0.08 .116 ±.002 2.95 ±0.05
Q
5.795 ±.005 147.19 ±0.13 4.682 ±.003 118.92 ±0.08 .149 ±.002 3.78 ±0.05
Note: Once a minimum dimension is
met, disc is to be discarded.
XII. Inspection and Part Replacement (Cont’d)
