Type ACE97
3
If a leak develops or if the unit or outlet
continually vents gas, service to the
unit may be required. Failure to correct
trouble could result in a hazardous
condition. Only a qualied person must
install or service the unit.
Installation, operation, and maintenance
procedures performed by unqualied
personnel may result in improper
adjustment and unsafe operation.
Either condition may result in equipment
damage or personal injury. Use qualied
personnel when installing, operating,
and maintaining the Type ACE97
pad-depad valve.
Introduction
Scope of the Manual
This instruction manual provides installation, startup,
maintenance, and parts ordering information for the
Type ACE97 Pad-Depad valve (Figure 1). The
product photo may vary depending on the size of
the valve ordered.
Table 1. Actuator Spring Pressure Ranges
CONTROL PRESSURE RANGES SPRING FREE LENGTH SPRING WIRE DIAMETER
Pad Setpoint Depad Setpoint (Above Pad)
INCHES mm INCHES mm
inches w.c. mbar inches w.c. mbar
0.5 to 3- 1 to 7 4 to 10 10 to 25 3.08 78,2 0.105 2,67
0.5 to 7 1 to 17 4 to 6 10 to 15 4.0 102 0.092 2,34
3 to 13 7 to 32 4 to 16 10 to 40 3.73 94,7 0.156 3,96
4 to 10 10 to 25
(1)
16 to 78 40 to 194
(1)
3.73
2.90
94,7
73,7
0.156
0.250
3,96
6,35
0.5 to 1.4 psig 34 to 97 mbar 0.25 to 1 psig 17 to 69 3.8 96,5 0.250 6,35
1.0 to 2.2 psig 69 to 152 mbar 0.25 to 2 psig 17 to 138 3.8 96,5 0.313 7,95
1. Two nested springs are used (See Figure 12).
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
TANK PRESSURE
VACUUM PRESSURE
PRE-EXPANSION PRESSURE
INTERMEDIATE BLEED PRESSURE
PILOT SUPPLY PRESSURE
INTERMEDIATE PRESSURE
LOADING PRESSURE
PUMP PRESSURE
BYPASS PRESSURE
BACK PRESSURE
BOOST PRESSURE
EXHAUST
PILOT LOADING PRESSURE
VENT HEADER PRESSURE
INLET BLEED PRESSURE
POPPET
O-RING
SEAT
ROLLING
DIAPHRAGM
CAGE
INLET
OPEN PILOT
REGULATOR
ACTUATOR
SENSING
CONNECTION
DIAGNOSTIC
PORT
INERT GAS IN
PAD VALVE
TANK
CONNECTION
DEPAD
MAIN
VALVE
ON/OFF
DIAGNOSTIC
GAUGE
DEPAD PILOT
LOADING PRESSURE
EXHAUSTED BACK TO TANK
INLET PRESSURE
ATMOSPHERIC PRESSURE
TANK PRESSURE
VENT HEADER PRESSURE
PILOT LOADING PRESSURE
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
TANK PRESSURE
VACUUM PRESSURE
PRE-EXPANSION PRESSURE
INTERMEDIATE BLEED PRESSURE
PILOT SUPPLY PRESSURE
INTERMEDIATE PRESSURE
LOADING PRESSURE
PUMP PRESSURE
BYPASS PRESSURE
BACK PRESSURE
BOOST PRESSURE
EXHAUST
PILOT LOADING PRESSURE
VENT HEADER PRESSURE
INLET BLEED PRESSURE
VENT
INLET
BLEED
ADJUSTABLE
DEADBAND
INLET BLEED PRESSURE
Figure 2. Type ACE97 Pad On / Depad Off
CONTROLLED
PRESSURE
RANGE SPRING
MAIN
VALVE
SPRING
E0005
(20 pagine)
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