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Disassembly and Repair
Procedure
Thermo Scientific
3
14
2
8
4
13
10
1
Figure I. Exploded Valve Parts
Item
Description
1
Handwheel
2
Spring Retainer
3
Screw
4
Spring
5
Bonnet
6
Stem
7
Bonnet Washer
8
Washer
9
Bushing
10
Seal
11
Body and Tube
12
Seat Disc & Nipple Asm
13
Seal Washer
14
Washer
15
Gasket
1. Referring to Figure I, open valve by turning handwheel
counterclockwise as far as it will go to release any trapped gas in the
system.
Caution Do not apply force after valve is fully open.
Service and Maintenance
7
5
15
6
12
9
11
Qty
Part Number
1
* All parts are
1
included in Valve Repair Kit P/N
1
97-1575-9 (except Item 11 which is
not available as a repair part).
1
1
1
2
1
1
1
1
1
1
1
1
s
230 liter LN2 Supply Tank
Section 7
7-7
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