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MODEL 700 CONTROL VALVE
2.1.2
Environmental conditions
WARNING
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
Description
Severe service conditions
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.
Additional severe service
conditions
The valves are designed to be used on liquid applications for
crude oil and refined products.
The use of aggressive additives or oxygenates requires the use
of the Aggressive Products (AP) option. The AP option valve
cylinder incorporates cup-seals (PTFE Bal Seals) and an O-ring
made from appropriate materials for severe conditions.
Corrosive service
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 and freezing temperatures
Low specific gravities or high viscosities reduce the flow range of
the valve. Refer to
Operating conditions for the control valve
for
more information.
Populated areas
For new installations, locate the control valve to an area that has
fewer than 10 buildings intended for human occupancy within
an area that extends 200 meters (220 yards) radially from the
control valve. (Reference: Class 1 Location: U.S. DOT, CFR Title
49: Part 192.5)
Closed, poorly ventilated areas
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.
Elevation
No limit
Humidity
No limit
Proximity to open flame
Provide fire prevention measures and equipment per local
regulations.
Proximity to vehicular traffic
The design of the control valve has not been assessed for the
effects of traffic.
Operating conditions and specifications
User manual
November 2020
P/N 3-9008-553
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Daniel Series 700 Control Valve