Instruction Manual

Instruction Manual
D100390X012
ED Valve
October 2014
24
4. If the valve plug and adaptor are not in good condition and must be replaced, the valve plug/adaptor assembly
must first be removed from the stem/bellows assembly and then the valve plug removed from the adaptor. First,
place the stem/bellows assembly and valve plug in a soft-jaw chuck or other type of vise so that the jaws grip a
portion of the valve plug that is n ot a seating surface. Drive out or drill out the pin (key 8, figure 19, 20, or 21). Drive
out the pin (key 36, figure 18).
5. Then, reverse the stem/bellows and plug/adaptor assembly in the soft-jaw chuck or vise. Grip the flat areas on the
valve stem just below the threads for the actuator/stem connection. Unscrew t he plug/adaptor assembly from the
stem/bellows assembly. Unscrew the valve plug from the adaptor.
6. To attach either the existing or a new valve plug to the stem of the new ENVIRO-SEAL stem/bellows assembly, first
attach the plug to the adaptor (if the valve plug was removed from the adaptor) as follows:
D Locate the adaptor. Notice that a hole has not been drilled in the new adaptor threads where the plug screws onto
the adaptor.
D Secure the valve plug in a soft-jaw chuck or other type of vise. Do not grip the plug on any seating surface. Position
the plug in the chuck or vise for easy threading of the adaptor.
D Thread the adaptor into the valve plug and tighten to the appropriate torque value.
7. Complete the installation by following steps 7 through 15 of the ENVIRO-SEAL Bellows Seal Bonnet installation
instructions given above.
Purging the ENVIRO-SEAL Bellows Seal Bonnet
The ENVIRO-SEAL bellows seal bonnet has been designed so that it can be purged or leak tested. Refer to figure 18 for
an illustration of an ENVIRO-SEAL bellows seal bonnet. Perform the following steps for purging or leak testing.
1. Remove the two diametrically opposed pipe plugs (key 16).
2. Connect a purging fluid to one of the pipe plug connections.
3. Install appropriate piping or tubing in the other pipe plug connection to pipe away the purging fluid or to make a
connection to an analyzer for leak testing.
4. When purging or leak testing has been completed, remove the piping or tubing and reinstall the pipe plugs (key
16).
Parts Ordering
Eachvalvebody-bonnetassemblyisassignedaserialnumberwhichcanbefoundonthevalve.Thissamenumberalso
appears on the actuator nameplate when the valve is shipped from the factory as part of a control valve assembly.
Refer to the serial number when contacting your Emerson Process Management representative for technical
assistance. When ordering replacement parts, refer to the serial number and to the eleven-character part number for
each part required from the following Parts Kit or Parts List information.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Process Management should
not, under any circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the
performance of the valve, and could cause personal injury and property damage.