Consolidated 19000 Series Safety Relief Valve Instruction Manual
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© 2020 Baker Hughes Company. All rights reserved.
For -2 Metal Seat Design
The -2 metal seat design is a flat seat design. The base seat
may be lapped or machined if necessary to verify that the
seat ("N" of Figure 11) is free from indentions, scratches,
high spots, etc.
If additional lighting is required for verifying the seat, Baker
Hughes suggests a goose-neck flashlight similar to the Type
A Lamp Assembly Flashlight (Standard Molding Corporation,
Dayton, Ohio) or an equivalent.
A3.
Machining the Base Seat
1. When the base seat cannot be repaired by lapping,
it can be machined as shown in Figure 11, using the
dimensions provided in Tables 3 to 5.
2. Baker Hughes recommends that the following
procedure be adhered to when machining the base
seat:
a. Using a four-jaw chuck, align the base so that
surfaces marked X and U run true within .001” (0.03
mm) on an indicator.
b. Take light cuts on the seat surface until all damage
is removed. Reestablish dimensions “B”, “C”, “F”,
“G”, “H” and Angle I. When L (minimum) is obtained,
the base should be replaced.
c. After all machining has been accomplished, lap the
seat using same procedure for base seat.
ATTENTION!
!
19000H and 19000 DA bases have flat seats
(90° angle) across the entire seating surface from
B diameter to D diameter.
0.3
Nozzle
Width
Flat Seat
5° Taper
00
0
0
3
3
3
3
3
3
3
3
3
3
3
0
3
0.3
0.
0.
0
0.
0.
.
.4
.4
.4
.4
4
4
4
4
4
4
0
0
0.
.4
.4
.4
4
4
4
4
.4
4
0.
0
4
.4
4
4
4
4
.
4
0.5
0.
0.5
0.5
0.5
0.5
0.5
0.5
0.5
5
0.5
0 5
0.5
5
0 5
0
5
6
0.
0.7
0.2
0.1
0
Figure10b:MeasuringMagnifierDetail
L
B
G
Y
H
K
X
A
D
E
U
J
XIII. Maintenance (Contd.)
Figure 11: Machining the Metal and Soft Seat Base
View Y
F
N
Figure 11c: Metal Seat
-2 Design
Figure 11b: Metal Seat
-1 Design
Figure 11a: Base General Dimensions
Figure 11d: Soft Seat Base
F
C
View Y
I
View Y
F
.012”
+ .003”
- .002”
(0.30 )
+ 0.08
- 0.05 mm
N
Содержание Consolidated 19000 Series
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