Instruction Manual
D101550X012
8532 Valve
June 2017
4
Installation
The valve is normally shipped as part of a control valve assembly, with the power actuator mounted on the valve. If the
valve or actuator has been purchased separately, or if the actuator has been removed for maintenance, mount the
actuator on the valve, and adjust actuator travel before installing the valve into the line. This is necessary due to the
measurements that must be made during the actuator calibration adjustment process. Refer to the Actuator
Mounting section of this manual and to the separate actuator instruction manual for mounting and adjusting
instructions before proceeding.
WARNING
To avoid personal injury or property damage resulting from the sudden release of pressure:
D Do not remove the actuator from the valve while the valve is still pressurized.
D Always wear protective gloves, clothing, and eyewear when performing any maintenance operation.
D Do not install the valve assembly where service conditions could exceed the limits given in this manual or on the
nameplates.
D Use pressure‐relieving devices as required by government or accepted industry codes and good engineering practices
to protect from over‐pressurizing the system.
D Check with your process or safety engineer for any other hazards that may be present from exposure to process media.
D If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.
CAUTION
When ordered, the valve configuration and construction materials were selected to meet particular pressure, temperature,
pressure drop, and controlled fluid conditions. Responsibility for the safety of process media and compatibility of valve
materials with process media rests solely with the purchaser and end‐user. Since some body/trim material combinations
are limited in their pressure drop and temperature ranges, do not apply any other conditions to the valve without first
contacting your Emerson sales office
or Local Business Partner.
1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the
process media from both sides of the valve. If using a power actuator, shut off all pressure lines to the power
actuator, release pressure from the actuator, and disconnect the pressure lines from the actuator. Use lock‐out
procedures to be sure that the above measures stay in effect while you are working on the equipment.
See the WARNING at the beginning of the Maintenance section for more information before removing the valve from
the pipeline.
2. Install a three‐valve bypass around the control valve assembly if continuous operation is necessary during
inspection and maintenance of the valve.
3. Inspect the valve to be certain that it is free of foreign material.
4. Be certain that adjacent pipelines are free of any foreign material, such as pipe scale or welding slag, that could
damage the valve sealing surfaces.
CAUTION
Damage to the disk will occur if any pipe flanges or piping connected to the valve interfere with the disk rotation path.
Minimum inside diameters for flanges or pipe mating with valves are shown in tables 3 and 4.
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