Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,
re and/or chemical contamination
causing property damage and personal
injury or death.
Fisher® regulators must be installed,
operated, and maintained in accordance
with federal, state, and local codes,
rules and regulations, and Emerson
Process Management Regulator
Technologies, Inc. (Regulator
Technologies) instructions.
If the regulator vents gas or a leak
develops in the system, service to the unit
may be required. Failure to correct trouble
could result in a hazardous condition.
Installation, operation, and
maintenance procedures performed
by unquali ed personnel may result
in improperadjustment and unsafe
operation. Either condition may result
in equipment damage or personal injury.
Use quali ed personnel when installing,
operating, and maintaining the
Type 1190 regulator.
Introduction
Scope of the Manual
This manual provides installation, startup, and
maintenance instructions and parts ordering
information for the Type 1190 low-pressure gas
blanketing regulator (Figure 1) complete with
Type Y191A pilot and Type 95H supply pressure regulator.
W7428
Figure 1. Type 1190 Low-Pressure Gas Blanketing Regulator
Product Description
The Type 1190 low-pressure gas blanketing regulator
is a pilot-operated, pressure reducing regulator with
a supply pressure regulator. This regulator is used
for extremely accurate pressure control on very
low-pressure gas blanketing systems. This regulator
helps to control emissions and provides protection
against any contamination from atmospheric
conditions by providing a ushing action.
The Type 1190 gas blanketing regulator maintains a
positive vessel pressure thereby reducing the possibility
of vessel wall collapse during pump-out operations.
www. sherregulators.com
D101644X012
Page 2
Type 1190
Specications
Specications for a given regulator as it originally comes from the factory are stamped on nameplates located on
the actuator and main valve body, while the pilot outlet pressure range appears on the pilot spring case closing cap.
Body Sizes
BODY SIZES, END CONNECTION STYLE
NPSDNCast Iron
1, 225, 50
3, 4, 6
8 x 6,
12 x 6
Maximum Main Valve Inlet Pressures
(1)
80, 100,
150
200 x 150,
300 x 150
NPT, CL125 FF, or
CL250 RF anged
CL125 FF, or
CL250 RF anged
- - - -
WCC Steel or
CF8M Stainless Steel
NPT, SWE, BWE,
CL150 RF, CL300 RF, CL600
RF, or PN 16 / 25 / 40 anged
BWE, CL150 RF, CL300 RF,
CL600 RF, or PN 16 anged
BWE, CL150 RF, CL300 RF,
CL600 RF, or PN 25 anged
(2)
400 psig / 27.6 bar
Maximum Operating Inlet Pressures
(2)
200 psig / 13.8 bar with cast iron construction
or 300 psig / 20.7 bar with a steel or stainless
steel construction
Maximum Outlet (Casing) Pressure
(2)
75 psig / 5.2 bar
Maximum Operating Outlet Pressure to Avoid
Internal Parts Damage
(2)
75 psig / 5.2 bar
Outlet Pressure Ranges (Type Y191A Pilot)
(2)
See Table 1
Flow Coefcients for Relief Valve Sizing
See Table 2
Maximum and Minimum Differential Pressures
See Table 3
Main Valve Orice Diameters and Travels
BODY SIZES
NPSDNInchmm Inch mmInch mm
1251-5/16 333/419- - - -- - - - - - - -
2502-3/8601-1/8 29
3803-3/8861-1/2 38407/822
41004-3/811125140125
6, 8 x 6,
150, 200 x 150,
12 x 6
300 x 150
ORIFICE
DIAMETER
7-3/16 18325140125
Standard
TRAVEL
Restricted Capacity
Percent
Travel
30 3/895
705/816
Supply Pressure Settings Required for the
Type 95H Supply Pressure Regulator
See Table 4
Pressure Registration
External
Main Valve Flow Characteristic
Linear
Temperature Capabilities
Nitrile (NBR): -20 to 180°F / -29 to 82°C
(2)
Fluorocarbon (FKM): 40 to 300°F / 4 to 149°C
Ethylenepropylene (EPDM):
-20 to 275°F / -29 to 135°C
Peruoroelastomer (FFKM):
-20 to 300°F / -29 to 149°C
Approximate Weights
NPS 1 / DN 25: 85 pounds / 39 kg
NPS 2 / DN 50: 100 pounds / 45 kg
NPS 3 / DN 80: 145 pounds / 66 kg
NPS 4 / DN 100: 195 pounds / 88 kg
NPS 6 / DN 150: 380 pounds / 172 kg
NPS 8 x 6 / DN 200 x 150: 740 pounds / 336 kg
NPS 12 x 6 / DN 300 x 150: 1265 pounds / 574 kg
1. End connections for other than U.S. standard can usually be provided; consult your local Sales Ofce.
2. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
1. Outlet pressure ranges based on pilot being installed with the spring case pointed down.
2. Do not use Fluorocarbon (FKM) diaphragm with this spring at diaphragm temperatures lower than 60°F / 16°C.
2
2 to 7
5 to 16
(2)
(2)
172 mbar to 0.31 bar
0.31 to 0.48 bar
(1)
0.6 to 6
5 to 17
12 to 40
34 to 83
76 to 172
SPRING
(2)
(2)
PART NUMBER
1B558527052
1B653827052
1B653927022
1B537027052
1B537127022
1B537227022
1B537327052
SPRING
COLOR
Orange
Red
Unpainted
Yellow
Green
Light blue
Black
SPRING WIRE DIAMETERSPRING FREE LENGTH
0.072
0.085
0.105
0.114
0.156
0.187
0.218
1.83
2.16
2.67
2.90
3.96
4.75
5.54
3.78
3.63
3.75
4.19
4.06
3.94
3.98
96.0
92.1
95.3
106
103
100
101
Page 3
TYPE 95H SUPPLY
REGULATOR
TYPE 1098-EGR
MAIN VALVE
Type 1190
TYPE Y191A PILOT
SETPOINT
ADJUSTMENT
B2328_3
INLET PRESSURE
OUTLET PRESSURE
LOADING PRESSURE
PILOT SUPPLY PRESSURE
ATMOSPHERIC PRESSURE
Figure 2. Type 1190 Low-Pressure Gas Blanketing Regulator Operational Schematic
Principle of Operation
The Type 1190 gas blanketing regulator reduces
a high-pressure inert gas to maintain a positive
low-pressure gas blanket over a stored liquid
while liquid is being pumped out of the tank. Also,
when the tank suddenly cools causing tank vapors
to condense, the Type 1190 regulator replaces the
condensing vapors with an inert gas to prevent the
internal tank pressure from decreasing. In both
cases, a positive tank pressure prevents outside air
from entering the vessel preventing contamination
and reducing the possibility of atmospheric pressure
collapsing the vessel.
The Type 1190 regulator is pilot-operated to respond to
slight decreases in internal tank pressure by throttling
open to increase the ow rate of inert gas into the vessel.
When the vessel’s liquid level has been lowered to the
desired point and the vapor pressure re-established, the
Type 1190 regulator throttles closed.
The Type 1190 regulator utilizes a Type 1098-EGR
main valve actuator (Type EGR main valve and
Type 1098 actuator), a Type Y191A sensing pilot, and
a Type 95H supply pressure regulator. The Type Y191A
pilot uses the high-pressure inlet gas, reduced by the
CONTROL LINE
FIXED
RESTRICTION
GAS BLANKETING
DOWNSTREAM
BLEED LINE
PRESSURE
Type 95H supply pressure regulator, as loading pressure
to operate the Type 1098-EGR main valve actuator. The
outlet or vessel pressure is sensed through a control line
on the Type 1098-EGR main valve actuator and also on
the Type Y191A pilot diaphragm.
When the liquid level is decreased and vessel
pressure decreases below the pilot outlet pressure
setting, the spring force on the pilot diaphragm
opens the pilot valve plug, allowing additional loading
pressure on the main valve actuator diaphragm. The
loading pressure opens the main valve plug to supply
the required ow of gas to the vessel.
When downstream demand has been satised, outlet
pressure tends to increase slightly, acting on the pilot
and main valve diaphragms. When the outlet pressure
exceeds the pilot outlet pressure setting, the pilot
diaphragm moves to close the pilot valve plug. The
loading pressure reduces by exhausting downstream
through the xed restriction, allowing the main valve
spring to close the main valve plug. The combination
of main valve spring force and main valve plug
unbalance provides positive shutoff of the valve plug.
1. The pressures shown in the table are the minimum supply pressures required by the pilot. If the inlet pressure is less than shown, an external pilot supply is necessary.
Personal injury, equipment damage, or
leakage due to escaping accumulated gas
or bursting of pressure-containing parts
may result if this gas blanketing regulator
is overpressured or is installed where
service conditions could exceed the limits
given in the Specications section and
on the appropriate nameplate, or where
conditions exceed any ratings of the
adjacent piping or piping connections.
To avoid such injury or damage, provide
pressure-relieving or pressure-limiting
devices (as required by Title 49, Part 192,
of the U.S. Code of Federal Regulations;
by the National Fuel Gas Code Title 54 of
the National Fire Codes of the National
Fire Protection Association; or by other
applicable codes) to prevent service
conditions from exceeding those limits.
Additionally, physical damage to the
gas blanketing regulator could result in
personal injury and property damage due
to escaping accumulated gas. To avoid
such injury and damage, install the gas
blanketing regulator in a safe location.
Note
On the Type EGR main valve, a normal
pressure drop assists shutoff. Therefore,
leakage (backow) may result during any
reverse pressure drop condition.
1. Use qualied personnel when installing, operating,
and maintaining regulators. Before installing,
inspect the main valve, actuator, pilot, supply
pressure regulator, and tubing for any shipment
damage or foreign material that may have collected
during crating and shipment. Make certain the
body interior is clean and the pipelines are free of
foreign material. Apply pipe compound only to the
external pipe threads with a threaded body, or use
suitable line gaskets and good bolting practices
with a anged body.
Note
The Type 1190 gas blanketing regulator
should be installed as shown in Figure 1
so that ow through the Type 1098-EGR
main valve actuator matches the ow
arrow attached to the valve body.
WARNING
!
A regulator may vent some gas to
the atmosphere. In hazardous or
ammable gas service, vented gas
5
Page 6
Type 1190
may accumulate, and cause personal
injury, death, or property damage due
to re or explosion. Vent a regulator
in hazardous gas service to a remote,
safe location away from air intakes or
any hazardous location. The vent line
or stack opening must be protected
against condensation or clogging.
2. To keep the pilot spring case vent assembly
from plugging or the spring case from collecting
moisture, corrosive chemicals, or other foreign
material, point the vent down or otherwise protect
it. For proper operation, install the Type Y191A
pilot with the spring case barrel pointed down as
shown in Figure 1. To remotely vent a Type Y191A,
remove the vent assembly (key 26, Figure 8) and
install obstruction-free tubing or piping into the
1/4 NPT vent tapping. Provide protection on a
remote vent by installing a screened vent cap into
the end of the vent pipe.
3. Attach a 3/4 NPT downstream pressure control
line to the tank using a straight run of pipe. Connect
the other end of the control line to the Type 1098
actuator bonnet connection (see Figure 2).
Prestartup Considerations
BODY FLANGE
CAGE SCREWS INTO
BODY FLANGE
SEAT RING SCREWS
INTO CAGE
W3012-1
Figure 3. Trim Package Removal
The only adjustment necessary on a Type 1190
regulator is the pilot control spring pressure setpoint.
Turning the adjusting screw of the Type Y191A pilot
clockwise into the spring case increases the spring
compression and pressure setting. Turning the
adjusting screw counterclockwise decreases the
spring compression and pressure setting.
Before beginning the startup procedure in this section,
make sure the following conditions are in effect:
• Block valves isolate the regulator
• Hand valves are closed
• Gauges may be installed (if required) in place of
pipe plugs (key 52, Figure 10)
Note
For proper operation, the Type 95H is
factory set to the values in Table 4.
Slowly open the upstream block valve introducing
pressure into the Type 1190 gas blanketing regulator.
Slowly open the downstream block valve. The
regulator will immediately begin to operate. Monitor
the blanket pressure to ensure correct operation.
Note
The Type 1190 regulator was preset at
the factory at the customer’s specied
pressure or the mid-range of the
Type Y191A pilot. The outlet pressure
range of the Type Y191A pilot is stamped
on the spring case closing cap.
Shutdown
Installation arrangements vary, but in any installation
it is important to open and close valves slowly and
to close the upstream block valve rst when shutting
down the system.
Maintenance
Regulator parts are subject to normal wear and
must be inspected and replaced as necessary. The
frequency of inspection and replacement of parts
depends upon the severity of the service conditions
or the requirements of local, state, and federal
regulations. Due to the care Regulator Technologies
takes in meeting all manufacturing requirements
(heat treating, dimensional tolerances, etc.), use
only replacement parts manufactured or furnished by
Regulator Technologies.
The stem O-rings on the Type 1098 actuator can be
lubricated annually, using the grease tting (key 28,
Figure 7). Line pressure leakage or unexpected grease
extrusion from the actuator vent (key 27, Figure 7)
6
Page 7
during normal operation indicates stem O-ring damage.
All O-rings, gaskets, and seals should be lubricated with
a good grade of general-purpose grease and installed
gently rather than forced into position. Be certain that
the nameplates are updated to accurately indicate
any eld changes in equipment, materials, service
conditions, or pressure settings.
WARNING
!
To avoid personal injury resulting from
sudden release of pressure, isolate the
pilot or regulator from all pressure and
cautiously release trapped pressure
from the pilot or regulator before
attempting disassembly.
Type EGR Main Valve
Replacing Quick-Change Trim Package
INDICATOR PROTECTOR (KEY 19)
FLANGE NUT (KEY 22)
O-RING RETAINER (KEY 6)
STEM O-RING (KEY 7)
E-RING (KEY 23)
PIPE PLUG (KEY 31)
Type 1190
INDICATOR SCALE (KEY 18)
HEX NUT (KEY 8)
INDICATOR FITTING (KEY 5)
INDICATOR FITTING
O-RING (KEY 21)
SPRING (KEY 9)
INDICATOR STEM (KEY 10)
SPRING SEAT (KEY 28)
BODY FLANGE (KEY 2)
Perform this procedure if replacing the entire trim package
(Figure 3). Key numbers for both the complete main valve
and its trim package are referenced in Figure 6.
Note
All disassembly, trim change, and
reassembly steps in this section can be
performed with the Type EGR main valve
in the pipeline.
1. Disconnect the supply pressure tubing from the
top of the Type 1098-EGR main valve actuator.
Remove the cap screws or stud bolts (key 3). Pry
the body ange (key 2) loose from the valve body
(key 1), and lift out the trim package (Figure 3).
2. Perform any required inspection, cleaning, or
maintenance on the exposed surfaces of the valve
body or trim package. Replace the gasket (key 4)
and cage O-ring (key 17) as necessary.
3. On a pre-built replacement trim package, check
indicator zeroing by unscrewing the indicator
protector (key 19) and seeing if the ange of the
ange nut (key 22) lines up evenly with the bottom
marking on the indicator scale (key 18). If not,
remove the indicator scale and separate the ange
nut and hex nut (key 8). Hold the indicator scale
against the indicator tting (key 5) with the scale
base resting against the shoulder of the tting,
and turn the indicator nut to align its ange with
the bottom scale marking. Then lock both nuts
against each other, and install the indicator scale
and protector.
VALVE PLUG (KEY 16)
UPPER SEAL (KEY 15)
PORT SEAL (KEY 12)
W3116
Figure 4. Exploded View of Full-Capacity Trim
Package Assembly
CAGE (KEY 11)
CAGE O-RING (KEY 17)
SEAT RING (KEY 13)
4. Lightly coat the cage seating surfaces of the valve
body web and the body ange seating surfaces of
the valve body neck with a good grade of general
purpose grease. Install the trim package, and
secure it evenly with the cap screws or stud bolts.
No particular trim package orientation in the body
is required.
5. Remove the pipe plug (key 31) from the Type EGR
main valve body ange (key 2) and reconnect the
Type 95H supply pressure tubing and ttings as
shown in Figure 10.
Replacing Trim Parts
Perform this procedure if inspecting, cleaning, or
replacing individual parts in a trim package. Key
numbers are referenced in Figure 6. An exploded view
of a standard full-capacity trim package only is shown
in Figure 4.
7
Page 8
Type 1190
W2772-1
Figure 5. Seat Ring/Cage Removal or Installation
Using Body as Holding Fixture
Note
Access to the spring (key 9), indicator
tting O-ring (key 21) or travel indicator
parts in step 1 can be gained without
removing the body ange (key 2).
1. Remove the indicator tting (key 5) and attached
parts. Disconnect the supply pressure tubing
and ttings from the top of the Type 1098-EGR
main valve. Proceed to step 5 if only performing
maintenance on the tting or attached parts.
(key 8). Insert a screwdriver through the O-ring
retainer (key 6) to remove the stem O-ring
without removing the retainer. If necessary,
unclip the E-ring from the indicator stem.
6. Replace and lubricate parts, such as the gasket
(key 4) and cage O-ring (key 17), as necessary.
If the port seal (key 12) and upper seal (key 15)
were removed, install them in their retaining slots
with the grooved sides facing out. Also for ease
of installation, lubricate any other surfaces as
necessary. No further main valve maintenance is
necessary if only the indicator tting and attached
parts were removed.
7. Insert the valve plug (key 16) into the body ange
(key 2), install the cage (key 11) plus upper seal
(key 15), and O-ring (key 17) into the body ange,
and then install the seat ring (key 13) plus port
seal (key 12) into the cage. Use the valve body
as a holding xture during this step as shown in
Figure 5, and insert a wrench handle or similar
tool into the seat ring slots for leverage when
tightening the seat ring (key 13) and cage.
8. Remove the upsidedown body ange (key 2) if it
was anchored on the body (key 1). Lightly coat the
cage seating surfaces of the valve body web and
the body ange seating surfaces of the valve body
neck with a good grade of general-purpose grease.
Install the body ange on the body, and secure it
evenly with the cap screws or stud bolts (key 3).
2. Remove the cap screws or stud bolts (key 3) and
pry the body ange (key 2) loose from the valve
body (key 1).
3. Use the valve body as a holding xture if desired.
Flip the body ange over, and anchor it on the
valve body as shown in Figure 5.
4. To gain access to the port seal (key 12), upper
seal (key 15), or valve plug parts, unscrew the seat
ring (key 13) from the cage (key 11) and the cage
from the body ange (key 2). For leverage, insert
a wrench handle or similar tool into the seat ring
slots (Figure 5) and wrap a strap wrench around a
cage, or insert a soft bar through the windows of the
cage. Proceed to step 6 if no further maintenance
is necessary.
5. To replace the body ange (key 2) or gain access
to the spring (key 9), indicator stem (key 10),
stem O-ring (key 7), spring seat (key 28), or
E-ring (key 23), remove the indicator protector
(key 19) and indicator scale (key 18). Since
some compression is left in the spring, carefully
remove the ange nut (key 22) and hex nut
9. Install the indicator tting O-ring (key 21), stem
O-ring (key 7), and O-ring retainer (key 6) in the
indicator tting (key 5). Orient the spring seat
(key 28) as shown in Figure 6, and attach it
with the E-ring (key 23) to the slotted end of the
indicator stem (key 10). Then install the
spring (key 9).
10. Being careful not to cut the stem O-ring (key 7) with
the stem threads, place the indicator tting (key 5)
over the indicator stem (key 10) until resting on the
spring (key 9). Install the hex nut (key 8) and then
the anged indicator nut (key 22) on the indicator
stem, pushing on the tting if necessary to provide
sufcient stem thread exposure. To maintain
clearance for indicator part installation, draw up the
spring seat (key 28) by turning the hex nut down on
the stem until the threads bottom.
11. Install the indicator tting (key 5) with attached parts
into the body ange (key 2). Back off the hex nut
(key 8) until the spring (key 9) completely closes the
valve plug (key 16) against the port seal (key 12) and
upper seal (key 15), as indicated by stem threads
showing between this nut and the tting.
8
Page 9
Type 1190
12. Hold the indicator scale (key 18) against the
tting with the scale base resting against the
shoulder of the tting, and turn the anged
indicator nut (key 22) until its ange is aligned
with the bottom scale marking. Then lock both
nuts against each other, and install the indicator
scale and protector (key 19).
Type Y191A Pilot
Key numbers are referenced in Figure 8.
WARNING
!
To avoid personal injury resulting from
sudden release of pressure, isolate the
pilot from all pressure and cautiously
release trapped pressure from the pilot or
regulator before attempting disassembly.
Body Area
This procedure is for gaining access to the disk
assembly, orice, and body seal O-ring.
1. Remove the cap screws (key 2) and separate the
lower casing assembly (key 4) from the body
(key 1).
2. Remove and inspect the body seal O-ring (key 11)
and the backup ring (key 49). See the expanded
view of the body area in Figure 8.
3. Inspect and replace the orice (key 5) if necessary.
Protect the orice seating surface during disassembly
and assembly. Sparingly lubricate the threads of
the orice with a good grade of grease and install
with 29 to 38 foot-pounds / 39 to 51 N•m of torque.
4. To replace the disk assembly (key 13) or the throat
seal O-ring (key 31), remove the cotter pin (key 15).
5. To inspect the throat seal O-ring (key 31), remove
the machine screw (key 33). Replace if necessary
and reassemble.
6. Install the disk assembly (key 13) and secure it with
the cotter pin (key 15).
7. Place the backup ring (key 49) into the body
(key 1). Then place the body seal O-ring (key 11)
into the body.
8. Place the lower casing assembly (key 4) on the
body (key 1) and secure it with the cap screws
(key 2).
Diaphragm and Spring Case Area
This procedure is for gaining access to the spring,
diaphragm, lever assembly, and stem.
To Change the Control Spring:
1. Remove the closing cap (key 22), and release all
the compression from the spring (key 6) by turning
the adjusting screw (key 35) counterclockwise.
2. Change the spring (key 6) to match the desired
outlet pressure range.
3. Replace the adjusting screw (key 35).
4. Install a replacement closing cap gasket (key 25),
if necessary, and reinstall the closing cap (key 22).
5. If the outlet pressure range was changed, be sure
to change the stamped range on the nameplate.
To Disassemble and Reassemble Diaphragm Parts:
1. Remove the closing cap (key 22), and turn the
adjusting screw (key 35) counterclockwise to
remove the adjusting screw and the spring (key 6).
2. Remove the spring case hex nuts (key 23, not
shown), cap screws (key 24), and spring case
assembly (key 3).
3. Remove the diaphragm (key 10) and attached
parts by tilting them so that the pusher post (key 8)
slips off the lever assembly (key 16). To separate
the diaphragm from the attached parts, unscrew
the machine screw (key 38) from the pusher post.
4. Inspect the pusher post (key 8) and the connector
seal O-ring (key 50), replace if required.
5. Remove hex nut (key 21) to separate the diaphragm
(key 10) and attached parts.
6. To replace the lever assembly (key 16), remove the
machine screws (key 17). To replace the stem
(key 14), perform Body Area Maintenance steps 1
and 4, and pull the stem out of the guide insert
(key 18).
7. Install the stem (key 14) into the guide insert
(key 18) and then perform Body Area Maintenance
steps 6 through 8 as necessary.
8. Install the lever assembly (key 16) into the stem
(key 14) and secure the lever assembly with the
machine screws (key 17).
9
Page 10
Type 1190
9. Install the parts on the pusher post in the order
listed below:
• Pusher post (key 8)
• Pusher post connector (key 40)
• Connector seal O-ring (key 50)
• Lower diaphragm head (key 51)
• Diaphragm (key 10)
• Diaphragm head (key 7)
• Hex nut (key 21)—Torque hex nut to
9 to 11 foot-pounds / 12 to 15 N•m to secure
parts to the pusher post connector.
• Overpressure spring (key 39)
• Spring holder (key 37)
• Machine screw (key 38)
10. Insert and tighten the cap screw (key 38) with a
torque of 1 to 3 foot-pounds / 1.4 to 4.1 N•m to
secure the diaphragm parts to the pusher post
(key 8).
11. Install the assembled parts into the lower
diaphragm casing assembly (key 4). Make sure
that the lever assembly (key 16) ts in the pusher
post (key 8) and the holes in the diaphragm
(key 10) align with the holes in the diaphragm
casing assembly.
12. Install the spring case assembly (key 3) on
the lower casing assembly (key 4) so that the
vent assembly (key 26) is correctly oriented.
Secure the spring case assembly with the cap
screws (key 24) and hex nuts (key 23, not
shown) ngertight.
13. Insert the spring (key 6) into the spring case
assembly (key 3), followed by the adjusting
screw (key 35).
14. Turn the adjusting screw (key 35) clockwise until
there is enough spring force to provide proper slack
to the diaphragm (key 10). Use crisscross pattern
to tighten the cap screws (key 24) and hex nuts
(key 23, not shown) with 18 to 21 foot-pounds /
24 to 28 N•m of torque.
15. Install a replacement closing cap gasket (key 25)
if necessary, and then install the closing cap
(key 22).
Type 95H Supply Pressure Regulator
This section includes instructions for disassembly and
assembly of replacement parts. All key numbers refer
to Figure 9.
WARNING
!
To avoid personal injury resulting from
sudden release of pressure, isolate
the regulator from all pressure and
cautiously release trapped pressure
from the main valve, pilot, or supply
regulator before attempting disassembly.
1. Unscrew the valve plug guide (key 5) from the
body (key 1). The valve plug spring (key 10) and
the valve plug (key 4) will normally come out of
the body along with the valve plug guide.
2. Inspect the seating surface of the valve plug,
being sure that the composition surface (or
polished steel surface) of the valve plug is not
damaged. Replace if damaged.
3. Inspect the seating edge of the orice (key 3).
If damaged, unscrew the orice from the body
(key 1) and replace it with a new part. If no further
maintenance is required, reassemble the regulator
in the reverse of the above steps. When installing
the valve plug guide (key 5), coat the threads
and sealing surface with sealant to ensure an
adequate metal-to-metal seal.
4. To inspect the diaphragm (key 12) or other internal
parts, loosen the locknut (key 17) and turn the adjusting
screw (key 15) counterclockwise to remove all
spring compression.
5. Remove the diaphragm case cap screws (key 16)
and lift off the spring case (key 2). Remove the
upper spring seat (key 9) and regulator spring
(key 11). Remove the lower spring seat (key 8).
6. Remove the diaphragm (key 12) and examine for
damage. Replace if damaged.
7. With diaphragm removed, check to be sure the
pressure registration hole is completely open and
free of all obstructions.
8. Reassemble in reverse order of the previous
steps. Lubricate the upper spring seat (key 9)
and the exposed threads of the adjusting screw
(key 15). Before tightening cap screws (key 16)
be sure to install the adjusting screw, if completely
removed, and turn it down to obtain diaphragm slack.
This allows proper positioning of the diaphragm to
permit full travel of the valve plug (key 4). Complete
reassembly procedures and temporarily install a
gauge in place of the pipe plug (key 52, Figure 10).
Turn the adjusting screw to produce the desired
outlet pressure values shown in Table 4. Tighten the
locknut to maintain the desired setting.
10
Page 11
Type 1190
Type 1098 Actuator and Mounting Parts
Perform this procedure if changing, inspecting, or
replacing the actuator and/or pilot mounting parts.
Key numbers are referenced in Figures 7 and 10.
To avoid personal injury resulting
from sudden release of pressure,
isolate the regulator from all pressure
and cautiously release trapped
pressure from the unit before
attempting disassembly.
1. The actuator and pilot may be removed and
replaced as a unit by disconnecting the control line.
2. Access to all internal parts except the stem O-rings
(key 6), bearings (key 56), and wiper ring (key 57)
may be gained without removing the bonnet
(key 3) or upper diaphragm case (key 2) from the
main valve. Disconnect the loading tubing (key 24)
and the control line connection from the actuator.
3. Remove the cap screws (key 10), hex nuts (key 11),
lower diaphragm case (key 1), diaphragm (key 7),
and diaphragm plate (key 8). To separate the stem
(key 12) from the diaphragm plate, remove the stem
cap screw (key 9).
4. To remove the case O-ring (key 5), unscrew the
four cap screws (key 4), remove the upper
diaphragm case (key 2), and remove the case O-ring.
To remove the stem O-rings (key 6), bearings
(key 56), and wiper ring (key 57), remove the
loading and control lines. Unscrew the bonnet
(key 3), and remove the wiper ring, bearings,
and O-rings.
5. Lubricate both stem O-rings (key 6), and wiper
ring (key 57). Install them with the stem bearings
(key 56) in the bonnet (key 3). Lubricate the case
O-ring (key 5), and install it in the bonnet. Line up
the holes in the upper diaphragm casing (key 2) and
the bonnet; insert and tighten the four cap screws
(key 4) to 24 to 30 foot-pounds / 32 to 41 N•m of
torque. Thread the bonnet into the main valve body.
6. Secure the diaphragm plate (key 8) to the stem
(key 12) with the stem cap screw (key 9). Lay the
entire diaphragm (key 7), diaphragm plate, and
stem assembly into the lower diaphragm case
(key 2) so the diaphragm convolution laps up over
the diaphragm plate according to Figure 7. Then
install the stem slowly up into the bonnet (key 3)
WARNING
!
to prevent stem or O-ring damage, and secure the
lower diaphragm case to the upper diaphragm case
(key 1) with the cap screws (key 10) and nuts
(key 11). Tighten the cap screws and nuts to
24 to 30 foot-pounds / 32 to 41 N•m of torque.
Tighten evenly in a crisscross pattern to avoid
crushing the diaphragm.
7. Grease the stem O-rings (key 6) through the
grease tting (key 28) until excess grease starts
coming out the vent assembly (key 27).
8. Install the loading and control line tubing if removed.
Parts Ordering
Each Type 1190 gas blanketing regulator has a serial
number stamped on the nameplate. Refer to this
number when contacting your local Sales Ofce or
when ordering parts.
When ordering a replacement part, be sure to
reference the key number of each needed part and the
complete 11-character part number.
Parts List (Figures 6 through 10)
Parts marked NACE can be used for sour gas service
as detailed in the NACE International Standard MR0175.
Parts referenced in the parts list can be found in
Figures 6 through 10.
Type EGR Main Valve (Figure 6)
Key Description Part Number
Parts Kit, Nitrile (NBR) Elastomers
(included are keys 4, 7, 12, 15, 17, 21, 36, and 37)
NPS 1 / DN 25 R63EGX00112
NPS 2 / DN 50 R63EGX00122
NPS 3 / DN 80 R63EGX00132
NPS 4 / DN 100 R63EGX00142
NPS 6, 8 x 6, and 12 x 6 /
DN 150, 200 x 150, and 300 x 150 R63EGX00162
12 Stem
17-4PH Stainless steel
NPS 1 / DN 25 main valve body 14A6757X012
NPS 2 / DN 50 main valve body 14A5683X012
NPS 3 / DN 80 main valve body 14A5663X012
NPS 4 / DN 100 main valve body 14A5648X012
NPS 6 / DN 150 main valve body 14A6987X012
316 Stainless steel (NACE)
NPS 1 / DN 25 main valve body 14A6757X022
NPS 2 / DN 50 main valve body 14A5683X022
NPS 3 / DN 80 main valve body 14A5663X022
NPS 4 / DN 100 main valve body 14A5648X022
NPS 6 / DN 150 main valve body 14A6987X022
NPS 8 x 6 / DN 200 x 150 main valve body 18A4217X022
Parts Kit, Nitrile (NBR) (includes keys 10, 11, 12, 13,
15, 25, 31, 33, 45, 48, and 49) for other than
sour gas corrosion resistance applications RY690AX0012
1 Body, 3/4 NPT
Ductile iron 17B5351X012
Stainless steel 17B5351X032
2 Cap Screw (2 required)
Ductile iron 1C856228992
Stainless steel 18B3456X012
3 Spring Case Assembly
Ductile iron 13B0109X042
Stainless steel 13B0109X032
4 Lower Diaphragm Casing
Ductile iron 47B3063X012
Stainless steel 47B3064X012
11* Body Seal O-Ring
Nitrile (NBR) 1H993806992
Fluorocarbon (FKM) 1H9938X0012
Peruoroelastomer (FFKM) 1H9938X0042
Ethylenepropylene (EPDM) 1H9938X0022
12* Insert Seal
Nitrile (NBR) 1B885506992
Fluorocarbon (FKM) 1B8855X0012
Peruoroelastomer (FFKM) 1B8855X0062
Ethylenepropylene (EPDM) 1B8855X0022
13* Disk Assembly
303 Stainless steel disk holder
with Nitrile (NBR) disk 1C4248X0202
with Fluorocarbon (FKM) disk 1C4248X0052
with Ethylenepropylene (EPDM) disk 1C4248X0302
316 Stainless steel disk holder (NACE)
with Nitrile (NBR) disk 1C4248X0252
with Fluorocarbon (FKM) disk 1C4248X0192
with Peruoroelastomer (FFKM) disk 1C4248X0332
with Ethylenepropylene (EPDM) disk 1C4248X0152
14 Stem, Stainless steel (NACE) 17B3423X022
15 Cotter Pin, 302 Stainless steel 1A866537022
16 Lever Assembly, 302 Stainless steel 1B5375000B2
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75069-1872 USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
Asia-Paci c
Shanghai 201206, China
Tel: +86 21 2892 9000
Europe
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Tel: +39 051 419 0611
Middle East and Africa
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Tel: +971 4811 8100
For further information visit www. sherregulators.com
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a business of Emerson Process Management.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or
guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or speci cations of such
products at any time without notice.
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Process Management product remains solely with the purchaser.
Natural Gas Technologies
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75069-1872, USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
Asia-Paci c
Singapore 128461, Singapore
Tel: +65 6770 8337
Europe
Bologna 40013, Italy
Tel: +39 051 419 0611
Chartres 28000, France
Tel: +33 2 37 33 47 00
TESCOM
Emerson Process Management
Tescom Corporation
USA - Headquarters
Elk River, Minnesota 55330-2445, USA
Tels: +1 763 241 3238
+1 800 447 1250
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Tel: +49 38823 31 287