Bulletin 74.1:ACE95JR
2
Specications
Sizes and End Connection Styles
1/2 NPT
1 x 1/2 NPT
1 NPT
NPS 1/2 / DN 15, CL150 RF
NPS 1 / DN 25, CL150 RF
NPS 1 x 1/2 / DN 25 x 15, CL150 RF
NPS 1 / DN 25, Sanitary Flange
Maximum Operating Inlet Pressure
(1)
200 psig / 13.8 bar
Maximum Emergency Outlet (Casing) Pressure
(1)
20 psig / 1.4 bar
Maximum Operating Control Pressure
(1)
1.5 psig / 0.10 bar
Control Pressure Ranges
(1)
See Table 1
Maximum Differential Pressures
Up to 200 psig / 13.8 bar
Main Valve Flow Characteristic
Linear
Pressure Registration
External
Capacities
See Table 4
Temperature Capabilities
(1)
Nitrile (NBR):
-20 to 180°F / -29 to 82°C
Fluorocarbon (FKM):
0 to 212°F / -18 to 100°C
Ethylenepropylene (EPDM - FDA):
-20 to 212°F / -29 to 100°C
Peruoroelastomer (FFKM):
-20 to 212°F / -29 to 100°C
Flow Coefcients for Relief Valve Sizing
(110% of rated C
v
)
C
v
0.2 use C
v
0.22
C
v
0.4 use C
v
0.44
IEC Sizing Coefcients
X
T
: 0.655; F
D
: 0.86; F
L
: 0.89
Construction Materials
Body: 316 Stainless Steel
Trim: 304 Stainless Steel and 316 Stainless Steel
Elastomers: Nitrile (NBR), Fluorocarbon (FKM),
FDA-Ethylenepropylene (EPDM), or
Peruoroelastomer (FFKM)
Diaphragm: Polytetrauoroethylene (PTFE)
Actuator: 316 Stainless Steel or Carbon Steel
Approximate Weight (with all accessories)
30 pounds / 14 kg
Table 1. Control Pressure Ranges
OUTLET (CONTROL PRESSURE RANGE)
SPRING PART NUMBER SPRING MATERIAL
SPRING
FREE LENGTH
SPRING WIRE
DIAMETER
inches w.c. mbar inches mm inches mm
-5 to -0.5 -12 to -1 GC220701X22 Stainless Steel
2.75
0.88
69.8
22.4
(1)
0.080
0.085
2.03
2.16
(1)
-1 to 1 -2 to 2 GC220701X22 Stainless Steel
2.75
1.60
69.8
40.6
(1)
0.080
0.065
2.03
1.65
(1)
0.5 to 5
4 to 10
8 to 15
0.5 to 1.5 psig
1 to 12
10 to 25
20 to 37
34 to 103
GC220701X22
GC220702X22
GC220703X22
GC220708X22
Stainless Steel
Stainless Steel
Stainless Steel
Stainless Steel
2.75
2.00
2.00
2.75
69.8
50.8
50.8
69.8
0.080
0.112
0.125
0.225
2.03
2.84
3.17
5.71
1. The second spring is located under the diaphragm assembly.
Features and Benets
Large PTFE Diaphragm—Resistant to corrosion and
highly sensitive to changes in tank pressure.
Fully Balanced—Eliminates setpoint changes caused by
variations in inlet pressure.
Large Actuator—Large actuator diaphragm increases
sensitivity to tank pressure changes.
Rolling Diaphragm—The rolling diaphragm balances the
pilot valve and eliminates friction, resulting in extremely
accurate control.
Options and Accessories
Inlet Pressure Gauge—Displays pressure of blanketing
gas supply to the tank blanketing valve.
Control Pressure Gauge—Low-pressure gauge to
measure control pressure (tank pressure).
Purge Meter (Rotameter)—Maintains a small amount of
ow through the sensing or main line. Prevents corrosive
tank vapors from damaging upstream equipment.
Pressure Switch—Allows installation of an alarm system
to indicate low or high-pressure on the tank.
1. The pressure/temperature limits in this Bulletin, and any applicable standard or code limitation should not be exceeded.
(1 stránky)
(2 stránky)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Komentáře k této Příručce