Special Instructions For "Safe Use" And Installations In Hazardous Locations - Emerson Fisher D3 Instruction Manual

D3 Valve with Gen 2 easy-Drive Actuator
February 2021
Wiring connections must be in accordance with local, regional, and national codes for any given hazardous area approval.
Failure to follow the local, regional, and national codes could result in personal injury or property damage from fire or
explosion.
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 Automation Solutions sales office.
To avoid product damage, inspect the valve before installation for any damage or any foreign material that may have
collected in the valve body. Also remove any pipe scale, welding slag, or other foreign material from the pipeline.
1. Before installing the control valve assembly, inspect it for any damage and for any foreign material that may have
collected in the valve body.
2. Clean out all pipelines to remove scale, welding slag, and other foreign materials.
3. The control valve assembly may be installed in any orientation, but normally the actuator is vertical above the valve.
Install the valve so the flow direction arrow on the side of the valve indicates the direction of the process flow.
4. Install the valve following local and national piping codes when they apply to the application. For screwed
connections, treat the external pipe threads with a good grade pipe compound. For flanged connections, use
suitable gaskets between valve and pipeline flanges.
5. If continuous operation is required during inspection or maintenance, install a three‐valve bypass around the
control valve assembly.
Special Instructions for "Safe Use" and Installations in Hazardous
Locations
ATEX/IECEx
WARNING
To avoid static discharge from the enclosure, do not rub or clean the enclosure with solvents. To do so could result in an
explosion. Clean with a mild detergent and water only.
The enclosure is non­conducting and may generate an ignition­capable level of electrostatic charges under certain extreme
conditions. The user should ensure that the equipment is not installed in a location where it may be subjected to external
conditions (such as high­pressure steam) which might cause a build­up of electrostatic charges on non­conducting surfaces.
Additionally, cleaning of the equipment shall only be done with a damp cloth.
To avoid damage to the enclosure, when screws are fully tightened into blind holes in enclosure walls, with no washer
fitted, at least one full thread shall remain free at the base of the hole.
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Instruction Manual
D104161X012