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CONTROL VALVES 762, 763, 765, 766 AND 767
Operating conditions and specifications
Table 2-1:
Condition type
Maximum safe working
pressure
Valve capacity
Table 2-2:
Maximum allowable working pressure (psig)
Temp.
°F
-20 to 100
200
300
400
2.1.1
Design considerations
Some conditions to consider:
•
•
•
•
•
44
50
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Operating conditions for the control valve
Description
Flange connections/Ratings (DIN) for valve sizes DN50 and DN400:
•
DIN PN16 MWP at 120°C: 16 bar
•
DIN PN25 MWP at 120°C: 25 bar
•
DIN PN40 MWP at 120°C: 40 bar
•
DIN PN64 MWP at 120°C: 51 bar
•
DIN PN64 MWP at 120°C: 64 bar
•
DIN PN100 MWP at 120 °C: 100 bar
Flange connections/Ratings (Daniel Class) for valve sizes 2"-16":
See
Section 2.1
C
is a capacity coefficient that defines as the number of US gpm of
v
water that flows through a valve with a pressure drop of 1 psi across
the valve. Daniel valves have the following C
•
NPS 2: 86 gpm
•
NPS 3: 186 gpm
•
NPS 4: 309 gpm
•
NPS 6: 688 gpm
•
NPS 8: 1296 gpm
•
NPS 10: 2040 gpm
•
NPS 12: 2920 gpm
•
NPS 16: 5360 gpm
*C
based on wide open valve with water temperature at 16°C (60°F)
v
Maximum allowable working pressure
Daniel Class
150
290
260
230
200
Service operating pressure
Service testing pressures
Service process temperature and ambient site temperatures
Chemical composition and toxicity of fluid in operating conditions
Traffic, wind and earthquake at loading site
(continued)
300
600
750
1500
750
1500
730
1455
705
1405
Daniel Models 762, 763, 765, 766 and 767 Control Valves
:
v
900
2250
2250
2185
2110
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