Block Valves: Instruction Manual for All Sizes
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1.3.4.2 Reassembly
Refer to Figure 1-4 on page 1-6 for this procedure.
NOTE
In this procedure, the components (shown in Figure 1-4,
identified in Table 1-3 and Table 1-4) are enclosed in
parentheses using the following convention:
❑
A series of numbers not separated by a semi-colon refer to
both the small and large valve.
❑
In a series of numbers separated by a semi-colon:
❑
The first item number identifies an item in the
small block valve.
❑
The second item number identifies an item in the
large block valve.
To reassemble the manual valve:
NOTE
Use new O-rings (8 and 9; 9, 11 and 12) for this procedure.
1. Wipe new O-rings clean and very lightly grease them with Dupont Krytox
®
GPL2O7
vacuum lubricant.
2. Place O-rings (8 and 9) into their respective grooves.
3. Take the bellows/valve stem assembly (7, 8, 9, and 10; 5) and hold it securely in one
hand. Using the other hand, thread the top plate (4) onto the valve stem (5; 6) until the
top plate is flush with the bellows.
4. Place the bellows/valve stem assembly (7, 8, 9, and 10; 5) with the top plate into the
valve body and secure with cap screws (3). Be sure the seal disc is not in contact with
the seal area of the body before tightening the cap screws.
5. Push the knob onto the valve stem and secure it by tightening the set screw on the flat of
the valve stem(5; 6).
Содержание L6280
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