Reassembly - Emerson Fisher 9500 Instruction Manual

Instruction Manual
D100380X012
8. Remove the liner (key 2) from the valve body.
Some 9500 valves have the liner bonded to the valve body. If the valve has a bonded liner, burn or chip out the liner.
To strip the liner out with solvent, use Dynasolve 185, or equivalent solvent. (Dynasolve is a product of DYNALOYt
Inc.). Cover the valve with solvent bath or enclose the solvent bath around the liner. Remove all adhesive after the liner
has been removed.
Table 5. Taper Pin Details for 9500 Series Valves
VALVE SIZE, NPS
2
3, 4
6
8, 10
12

Reassembly

Before reassembling the valve, clean and inspect all parts. Key number locations are shown if figure 7. Refer to the
Parts List section to obtain replacement parts.
WARNING
Do not lubricate parts when used in oxygen service, or where the lubrication is incompatible with the process media. Any
use of lubricant can lead to the sudden explosion of media due to the oil/oxygen mixture, causing personal injury or
property damage.
1. Insert the liner (key 2) into the valve body. A small amount of silicone grease applied to the outside surface of the
liner will aid insertion of the liner. However, do not use grease if the valve is to be used for oxygen service.
In vacuum service applications, upon customer request, you may use Eccobondr 285/24LV bonding agent (Fisher part
number G1414006992) to bond the liner to the valve. Though bonding is not required, use the lettered steps below
when bonding the liner to the valve body. If a different agent is to be used, follow instructions furnished by the
bonding agent manufacturer. In absence of instructions, consult your
a. Roughen bonding surface of liner with a stiff wire brush. De‐grease bonding surfaces of the liner and valve body
with solvent.
b. Mix the two epoxy components thoroughly and spread a thin coat [approximately 0.38 mm (0.015 inches) thick]
of the mixture over all bonding surfaces of the valve body and liner.
c. Insert the liner into the valve body. Align the liner shaft holes with valve body shaft holes. Remove excess
bonding agent from shaft holes and exposed liner surfaces.
d. Insert the disk (key 3), thrust sleeve assemblies (key 6), and shaft (key 4) into the valve body. Be sure the thrust
sleeve assemblies engage the liner recesses to ensure proper liner positioning. Rotate the disk to the closed
position.
e. Lay the valve on one valve face and add weights to the other face to ensure a tight bond. Allow to cure for 24
hours. Then, proceed with the following reassembly steps.
2. Insert the thrust sleeve assemblies into the valve body. Be sure that the thrust sleeve assemblies enter the liner
recesses to align the shaft holes, by temporarily inserting the shaft(s) (key 4).
SHAFT DIAMETER
mm (Inches)
12.7 (1/2)
15.9 (5/8)
19.1 (3/4)
25.4 (1)
31.8 (1‐1/4)
AMERICAN STANDARD TAPER
PIN SIZE
2
3
4
6
7
Emerson sales office.
9500 Valve
February 2019
DRILL SIZE
#20 (0.161 Inches)
#16 (0.177 Inches)
13/64 Inches
9/32 Inches
21/64 Inches
11