Emerson 1190 Instruction Manual
Instruction Manual
Form 5307
April 2012
Type 1190
Type 1190 Low-Pressure Gas Blanketing Regulator
WARNING
!
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
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
NPS DN Cast Iron
1, 2 25, 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
NPS DN Inch mm Inch mm Inch mm
1 25 1-5/16 33 3/4 19 - - - - - - - - - - - -
2 50 2-3/8 60 1-1/8 29
3 80 3-3/8 86 1-1/2 38 40 7/8 22
4 100 4-3/8 111 2 51 40 1 25
6, 8 x 6,
150, 200 x 150,
12 x 6
300 x 150
ORIFICE
DIAMETER
7-3/16 183 2 51 40 1 25
Standard
TRAVEL
Restricted Capacity
Percent
Travel
30 3/8 95
70 5/8 16
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.
Table 1. Outlet Pressure Ranges (Type Y191A Pilot)
OUTLET PRESSURE RANGE
Inches w.c. mbar Inch mm Inch mm
0.25 to 2.5
0.5 to 1.2 psig
1.1 to 2.5 psig
2.5 to 4.5 psig
4.5 to 7.0 psig
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 DIAMETER SPRING 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
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.
3
Type 1190
Table 2. Flow Coefcients
PIPING STYLE
BODY SIZES
C
g
Linear Cage Drilled Hole Whisper Trim™ Cage
C
NPS DN Regulating Wide-Open Regulating Wide-Open Regulating Wide-Open Regulating Wide-Open
1 25 600 632 16.8 17.7 35.7 576 607 16.7 17.6 34.5
2 50 2280 2400 63.3 66.7 36.0 1970 2080 54.7 57.8 36.0
3 80 4630 4880 132 139 35.1 3760 3960 107 113 35.0
4 100 7320 7710 202 213 36.2 6280 6610 180 190 34.8
6 150 12,900 13,600 397 418 32.5 9450 9950 295 310 32.0
8 x 6 200 x 150 18,480 19,450 578 608 32.0 10,660 11,220 305 321 35.0
12 x 6 300 x 150 21,180 22,290 662 697 32.0 11,050 11,630 316 332 35.0
BODY SIZES
C
Standard Linear Cage Drilled Hole Whisper Trim™ Cage
g
C
NPS DN Regulating Wide-Open Regulating Wide-Open Regulating Wide-Open Regulating Wide-Open
1 25 568 598 17.2 18.1 33.0 529 557 15.6 16.4 34.0
2 50 2050 2160 59.6 62.8 34.4 1830 1930 52.3 55.1 35.0
3 80 4410 4650 128 135 34.4 3630 3830 106 110 34.2
4 100 6940 7310 198 209 35.0 6020 6340 171 180 35.2
6 150 12,100 12,800 381 404 31.7 9240 9730 291 306 31.7
8 x 6 200 x 150
17,370 18,280 543 571 32.0 10,020 10,550 286 301 35.0
12 x 6 300 x 150 19,900 20,950 622 655 32.0 10,380 10,930 297 312 35.0
Line Size Equals Body Size Piping
v
C
1
2:1 Line Size to Body Size Piping
v
C
1
C
g
C
g
C
v
C
v
C
1
C
1
Table 3. Maximum and Minimum Differential Pressures for Main Valve Spring Selection
BODY SIZES
NPS DN psig bar psig bar
MAIN VALVE
SPRING PART
NUMBER
SPRING
COLOR
MAXIMUM ALLOWABLE
DIFFERENTIAL PRESSURE
14A9687X012 Green 60 4.1 2.5 0.17
1 25
14A9680X012 Blue 125 8.6 4 0.28
14A9679X012 Red
300 or body rating
limit, whichever is lower
20.7 or body rating limit,
whichever is lower
14A6626X012 Green 60 4.1 3 0.21
2 50
14A6627X012 Blue 125 8.6 5 0.34
14A6628X012 Red
300 or body rating
limit, whichever is lower
20.7 or body rating limit,
whichever is lower
14A6629X012 Green 60 4.1 4 0.28
3 80
14A6630X012 Blue 125 8.6 6 0.41
14A6631X012 Red
300 or body rating
limit, whichever is lower
20.7 or body rating limit,
whichever is lower
14A6632X012 Green 60 4.1 5 0.34
4 100
14A6633X012 Blue 125 8.6 8 0.55
14A6634X012 Red
300 or body rating
limit, whichever is lower
20.7 or body rating limit,
whichever is lower
14A9686X012 Green 60 4.1 9.5 0.66
6,
8 x 6,
12 x 6
150,
200 x 150,
300 x 150
14A9685X012 Blue 125 8.6 14 1.0
15A2615X012 Red
300 or body rating
limit, whichever is lower
20.7 or body rating limit,
whichever is lower
MINIMUM DIFFERENTIAL
PRESSURE REQUIRED
FOR FULL STROKE
5 0.34
10 0.69
11 0.76
13 0.90
19 1.3
4
Type 1190
Table 4. Supply Pressure Settings Required for the Type 95H Regulator
SUPPLY PRESSURE
BODY SIZES
NPS DN psig bar psig bar psig bar psig bar psig bar psig bar psig bar
1 25
2 50
3 80
4 100
6, 8 x 6,
12 x 6
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.
150, 200 x 150,
300 x 150
TYPE EGR
SPRING
COLOR
Green 6 0.41 6 0.41 6 0.41 7 0.48 8 0.55 11 0.76 13 0.90
Blue 7 0.48 7 0.48 7 0.48 8 0.55 10 0.69 13 0.90 14 1.0
Red 8 0.55 8 0.55 8 0.55 9 0.62 11 0.76 14 0.97 15 1.0
Green 6 0.41 6 0.41 6 0.41 7 0.48 9 0.62 12 0.83 13 0.90
Blue 8 0.55 8 0.55 8 0.55 9 0.62 11 0.76 14 0.97 15 1.0
Red 13 0.90 13 0.90 13 0.90 14 1.0 16 1.1 19 1.3 20 1.4
Green 7 0.48 7 0.48 7 0.48 8 0.55 10 0.69 13 0.90 14 1.0
Blue 9 0.62 9 0.62 9 0.62 10 0.69 12 0.83 15 1.0 16 1.1
Red 14 1.0 14 1.0 14 1.0 15 1.0 17 1.2 20 1.4 21 1.5
Green 8 0.55 8 0.55 8 0.55 9 0.62 11 0.76 14 1.0 15 1.0
Blue 11 0.76 11 0.76 11 0.76 12 0.83 14 1.0 17 1.2 18 1.3
Red 16 1.1 16 1.1 16 1.1 17 1.2 19 1.3 22 1.5 23 1.6
Green 13 0.90 13 0.90 13 0.90 14 1.0 15 1.0 18 1.2 20 1.4
Blue 17 1.2 17 1.2 17 1.2 18 1.2 20 1.4 23 1.6 24 1.7
Red 22 1.5 22 1.5 22 1.5 23 1.6 25 1.7 28 1.9 29 2.0
Orange Red Unpainted Yellow Green Light Blue Black
Type Y191A Spring Color
Installation and Startup
WARNING
!
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
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
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