Emerson ACE95 Installation Guide
Installation Guide
English – September 2005
ACE95 Series
Introduction
This installation guide provides instructions for
installation, startup, and adjustment. To receive a
copy of the instruction manual, contact your local
Fisher Sales Ofce or Sales Representative or view
a copy at www.FISHERregulators.com. For further
information refer to: ACE95 Series Instruction Manual,
form 5667, D102775X012.
P.E.D. Categories
This product may be used as a safety accessory
with pressure equipment in the following Pressure
Equipment Directive 97/23/EC categories. It may
also be used outside of the Pressure Equipment
Directive using sound engineering practice (SEP)
per table below.
PRODUCT
TYPE
ACE95
ACE95Sr 2-inch (DN 50) I
PRODUCT SIZE CATEGORIES FLUID TYPE
3/4-inch (DN 20)
SEP
11-inch (DN 25)
Installation
WARNING
!
Only qualied personnel should install
or service a regulator. Regulators
should be installed, operated, and
maintained in accordance with
international and applicable codes and
regulations, and Fisher instructions.
If the regulator vents uid or a leak
develops in the system, it indicates that
service is required. Failure to take the
regulator out of service immediately
may create a hazardous condition.
Personal injury, equipment damage,
or leakage due to escaping uid or
bursting of pressure-containing parts
may result if this regulator is over-
pressured or is installed where service
conditions could exceed the limits given
in the Specications section, or where
conditions exceed any ratings of the
adjacent piping or piping connections.
To avoid such injury or damage,
provide pressure-relieving or pressurelimiting devices (as required by
the appropriate code, regulation,
or standard) to prevent service
conditions from exceeding limits.
Additionally, physical damage to the
regulator could result in personal
injury and property damage due to
escaping uid. To avoid such injury
and damage, install the regulator in a
safe location.
Clean out all pipelines before installation of the
regulator and check to be sure the regulator has
not been damaged or has collected foreign material
during shipping. For NPT bodies, apply pipe
compound to the male pipe threads. For anged
bodies, use suitable line gaskets and approved
piping and bolting practices. Install the regulator
in any position desired, unless otherwise specied,
but be sure ow through the body is in the direction
indicated by the arrow on the body.
Install the regulator above the uid level in the tank
with the actuator case horizontal.
Note
It is important that the regulator be
installed so that the vent hole in the
spring case is unobstructed at all times.
For outdoor installations, the regulator
should be located away from vehicular
trafc and positioned so that water,
ice, and other foreign materials cannot
enter the spring case through the vent.
Avoid placing the regulator beneath
eaves or downspouts, and be sure it is
above the probable snow level.
Table 1. Outlet (Control) Pressure Ranges
OUTLET (CONTROL) PRESSURE RANGE
-5 to -0.5-inches w.c. (-1,2 to -12 mbar)
-1 to 1-inches w.c. (-2 to 2 mbar)
0.5 to 5-inches w.c.
4 to 10-inches w.c.
8 to 15-inches w.c.
0.5 to 1.5 psig
1. The second spring is located under the diaphragm assembly.
R
(1,2 to 12 mbar)
(10 to 25 mbar)
(20 to 37 mbar)
(34 to 103 mbar)
Table 2. Main Valve Springs
TYPE VALVE C
1 through 4
ACE95
7.5 and 10
ACE95Sr 20 through 60
www.emersonprocess.com/regulators
V
INLET PRESSURE, PSIG (bar)
25 to 50
25 to 50
25 to 50
(1,72 to 3,45)
(3,52 to 8,27)
(8,34 to 13,8)
(1,72 to 3,45)
(3,52 to 8,27)
(8,34 to 13,8)
(1,72 to 3,45)
(3,52 to 8,27)
(8,34 to 13,8)
51 to 120
121 to 200
51 to 120
121 to 200
51 to 120
121 to 200
D102775XENG
2
ACE95 Series
Specications
Sizes and End Connection Styles
Type ACE95
(1)
Maximum Operating Outlet Pressure
1.5 psig (103 mbar)
Angled Body: 3/4-inch (DN 20) NPT
1-inch (DN 25) NPT
1-inch (DN 25) CL150RF
1-inch (DN 25) CL300RF
1-inch (DN 25) PN16/25/40RF
1-inch (DN 25) Sanitary Flange
In-Line Body: 3/4-inch (DN 20) NPT
1-inch (DN 25) NPT
1-inch (DN 25) CL150RF
1-inch (DN 25) CL300RF
1-inch (DN 25) PN16/25/40RF
1-inch (DN 25) Sanitary Flange
Outlet Pressure Ranges
See table 1
Minimum and Maximum Differential Pressures
Minimum: 25 psig (1,72 bar)
Maximum: Up to 200 psig (13,8 bar) depending
on main valve spring. See table 2.
Proof Test Pressure
All Pressure Retaining Components have been
proof tested per Directive 97/23/EC - Annex 1,
Section 7.4
Type ACE95Sr
Angled Body: 2-inch (DN 50) NPT
2-inch (DN 50) CL150RF
2-inch (DN 50) CL300RF
Maximum Operating Inlet Pressure
(1)
200 psig (13,8 bar)
Maximum Emergency Outlet (Casing) Pressure
Temperature Capabilities
Nitrile: –20° to 180°F (–29° to 82°C)
Fluoroelastomer: 0° to 212°F (–18° to 100°C)
Ethylenepropylene - FDA: –20° to 212°F
(–29° to 100°C)
(1)
Peruoroelastomer: –20° to 212°F
(–29° to 100°C)
20 psig (1,38 bar)
1. The pressure/temperature limits in this installation guide and any applicable standard or code limitation should not be exceeded.
(1)
(1)
(1)
Overpressure Protection
The recommended pressure limitations are stamped on
the regulator nameplate. Some type of overpressure
protection is needed if the actual inlet pressure
exceeds the maximum operating outlet pressure rating.
Overpressure protection should also be provided if the
regulator inlet pressure is greater than the safe working
pressure of the downstream equipment.
Regulator operation below the maximum pressure
limitations does not preclude the possibility of
damage from external sources or debris in the line.
The regulator should be inspected for damage after
any overpressure condition.
Startup
The regulator is factory set at approximately
the midpoint of the spring range or the pressure
requested, so an initial adjustment may be required
to give the desired results. With proper installation
completed and relief valves properly adjusted, slowly
open the upstream and downstream shutoff valves.
Adjustment
To change the outlet pressure, remove the closing
cap or loosen the locknut and turn the adjusting
screw clockwise to increase outlet pressure or
counterclockwise to decrease pressure. Monitor
the outlet pressure with a test gauge during the
adjustment. Replace the closing cap or tighten
the locknut to maintain the desired setting.
Taking Out of Service (Shutdown)
WARNING
!
To avoid personal injury resulting from
sudden release of pressure, isolate
the regulator from all pressure before
attempting disassembly.
Parts List
Key Description
1 Cap
2 Adjusting Screw
3 Lock Nut
4 O-Ring
5 Spring Seat
6 Vent (Y602-A12)
7 Spring Case
8 Range Spring
9 Gasket (spring tower)
10 Diaphragm Plate (upper)
11 Diaphragm (main) - FEP
12 Gasket (actuator)
13 Diaphragm Retaining Nut
14 O-Ring
15 Diaphragm Bolt
16 O-Ring
17 Bonnet
18 Body
19 O-Ring
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