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User manual
DAN-20064957
2.1.2
Environmental conditions
EQUIPMENT HAZARD
Never use this equipment for any purpose other than its intended use.
Failure to comply may result in death, serious personal injury and/or property damage.
Table 2-2: Environmental conditions
Parameter type
Severe service conditions
Additional severe service
conditions
Corrosive service
Low and freezing temperatures
Populated areas
Closed, poorly ventilated areas
Elevation
Humidity
Proximity to open flame
Proximity to vehicular traffic
User manual
WARNING
Operating conditions and specifications
Description
Ensure that piping or other attachments connected to the valve
are not under stress. The design of the control valve has not
been assessed for the effects of wind, earthquake loading and
severe weather conditions.
The valves are designed to be used on liquid applications for
crude oil and refined products.
Select the material compatible with the specific processes and
atmospheric environments. Implement a periodic inspection
and maintenance program to ensure that pressure retaining
components are free from corrosion and erosion.
The valve is not designed with corrosion allowance. Inspect the
valve's metal parts periodically for corrosion and erosion, and
inspect the seals and O-rings for wear and chemical
deterioration.
Low specific gravities or high viscosities reduce the flow range of
the valve. Refer to
Operations overview of the 707 control valve
for more information.
For new installations, follow the guidelines for Class Locations
found in the U.S. DOT, CRF Title 49: Part 192.5
Install the control valve in a well ventilated area, not less than
one meter (approximately three feet) from source of ignition or
source of heat which might damage the unit.
No limit
No limit
Provide fire prevention measures and equipment per local
regulations.
The design of the control valve has not been assessed for the
effects of traffic.
August 2019
21
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