Instruction Manual

Instruction Manual
D100390X012
ED Valve
October 2014
4
general, if post weld heat treating is to be performed, all trim parts should be removed. Contact your Emerson Process
Management sales office for additional information.
5. With a leak-off bonnet construction, remove the pipe plugs (keys 14 and 16, figure 18) to hook up the leak-off
piping. If continuous operation is required during inspection or maintenance, install a three-valve bypass around
the control valve assembly.
6. If the actuator and valve are shipped separately, refer to the actuator mounting procedure in the appropriate
actuator instruction manual.
Table 2. Additional Shutoff Classifica tion
Valve Valve Size, NPS Port Diameter, Inches Cage Style Leakage Class
ED
(CL150-600)
2-1/2 2.875
Equal Percentage, Linear, Whisper I, Cavitrolt III, 1 stage
V(forport
diameters from
2.875
through 8-inch with
optional C-seal trim)
3 3.4375
3 2.875
Cavitrol III, 2 stage
4 2.875
4 4.375 Equal Percentage, Linear, Whisper I, Cavitrol III, 1 stage
6
5.375 Whisper III (A3, B3, D3, D3), Cavitrol III, 2 stage
7 Equal Percentage, Linear, Whisper I, Cavitrol III, 1 stage
8
7 Cavitrol III, 2 stage
8 Equal Percentage, Linear, Whisper I, Cavitrol III, 1 stage
WARNING
Personal injury could result from packing leakage. Valve packing was tightened before shipment; however, the packing
might require some readjustment to meet specific service conditions. Check with your process or safety engineer for any
additional measures that must be taken to protect against process media.
Valves with ENVIRO-SEAL live-loaded packing or HIGH-SEAL live-loaded packing will not require this initial
re-adjustment. See the Fisher instruction manuals, ENVIRO-SEAL Packing System for Sliding-Stem Valves or HIGH-SEAL
Live-Loaded Packing System (as appropriate), for packing instructions. If you wish to convert your present packing
arrangement to ENVIRO-SEAL packing, refer to the retrofit kits listed in the Parts Kit sub-section near the end of this
manual.
Maintenance
Valve parts are subject to normal wear and must be inspected and replaced as necessary. Inspection and maintenance
frequency depends on the severity of service conditions. This section includes instructions for packing lubrication,
packing maintenance, trim maintenance, and ENVIRO-SEAL bellows seal bonnet replacement. All maintenance
operations may be performed with the valve in the line.
WARNING
Avoid personal injury or property damage from sudden release of process pressure or bursting of parts. Before performing
any maintenance operations:
D Do not remove the actuator from the valve while the valve is still pressurized.
D Always wear protective gloves, clothing, and e yewear when performing any maintenance operations to avoid personal
injury.
D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the
actuator cannot suddenly open or close the valve.