Fisher ACE95, Instruction Manual

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ACE95 Series
2
Size and End Connection Style
1-inch: NPT
1-inch: ANSI CL150 RF
1-inch: ANSI CL 150 RF, Weldneck
1-inch: NPT x 2-inch ANSI CL 150 RF
2-inch: NPT
2-inch: ANSI CL 150 RF
2-inch: ANSI CL 300 RF
2-inch: NPT x 3-inch Tank Flange
Maximum Operating Inlet Pressure
200 psig (13,8 bar)
Maximum Outlet (casing) Pressure
20 psig (1,4 bar)
Maximum Operating Outlet Pressure
1.5 psig (103 mbar)
Outlet Pressure Ranges
-5.0-inch w.c. to 1.5 psig
(-12 mbar to 103 mbar)
see table 1
Pressure Registration
External
Main Valve Flow Characteristic
Linear
Specifications
Flow Coefficients for Relief Valve Sizing
(110% of rated Cv)
Type ACE95: Type ACE95Sr:
Cv 1 use Cv 1.1 Cv 20 use Cv 22
Cv 2 use Cv 2.2 Cv 45 use Cv 50
Cv 4 use Cv 4.4 Cv 60 use Cv 66
Cv 7.5 use Cv 8.25
Cv 10 use Cv 11
Temperature Capabilities
Nitrile (NBR):
–20° to 180°F (–7° to 82°C)
Flourelastomer:
0° to 212°F (–0° to 100°C)
EPDM (FDA):
–20° to 212°F (–7° to 100°C)
FFKM:
–20° to 212°F (–7° to 100°C)
Approximate Weight
With all accessories:
Type ACE95 - 40 lbs (18 kg)
Type ACE95Sr - 60 lbs (27 kg)
Principle of Operation
ACE95 Series tank blanketing valves are pilot oper-
ated, activated by the diaphragm, and control the vapor
space pressure over a stored liquid. The unit is con-
trolled by a very large diaphragm actuator. The over-
sized actuator offers high sensitivity to changes in tank
Table 1. Outlet (Control) Pressure Ranges
E R U S S E R P ) L O R T N O C ( T E L T U O
E G N A R
L A I R E T A M G N I R P S
, H T G N E L E E R F G N I R P S
) m m ( S E H C N I
, R E T E M A I D E R I W G N I R P S
) m m ( S E H C N I
) r a b m 2 , 1 - o t 2 1 - ( c w n i - 5 . 0 - o t 5 - l e e t S s s e l n i a t S
) 5 8 , 9 6 ( 5 7 . 2
) 2 5 3 , 2 2 ( 8 8 . 0 ) 1 (
) 2 3 0 , 2 ( 0 8 0 . 0
) 9 5 1 , 2 ( 5 8 0 . 0 ) 1 (
) r a b m 2 o t 2 - ( c w n i - 1 o t 1 - l e e t S s s e l n i a t S
) 5 8 , 9 6 ( 5 7 . 2
) ) 4 6 , 0 4 ( 0 6 . 1 ) 1 (
) 2 3 0 , 2 ( 0 8 0 . 0
) 1 5 6 , 1 ( 5 6 0 . 0 ) 1 (
) r a b m 2 1 o t 2 , 1 ( c w n i - 5 o t 5 . 0
) r a b m 5 2 o t 0 1 ( c w n i - 0 1 o t 4
) r a b m 6 3 o t 0 2 ( c w n i - 5 1 o t 8
) r a b m 3 0 1 o t 4 3 ( g i s p 5 . 1 o t 5 . 0
l e e t S s s e l n i a t S
l e e t S s s e l n i a t S
l e e t S s s e l n i a t S
l e e t S s s e l n i a t S
) 5 8 , 9 6 ( 5 7 . 2
) 8 , 0 5 ( 0 0 . 2
) 8 , 0 5 ( 0 0 . 2
) 5 8 , 9 6 ( 5 7 . 2
) 2 3 0 , 2 ( 0 8 0 . 0
) 5 4 8 , 2 ( 2 1 1 . 0
) 5 7 1 , 3 ( 5 2 1 . 0
) 5 1 7 , 5 ( 5 2 2 . 0
. y l b m e s s a m g a r h p a i d e h t r e d n u d e t a c o l s i g n i r p s d n o c e s e h T . 1
pressure. When a storage tank cools and tank vapors
condense, ACE95 Series valves replace the condens-
ing vapors with an inert gas to prevent internal tank
pressure from decreasing. Positive tank pressure
prevents outside air from contaminating the product and
reduces the possibility of atmospheric pressure collaps-
ing the tank. As demand is satisfied, the valve closes.