Fisher 133H, 133L, 133, 133HP Instruction Manual
Instruction Manual
Form 5007
January 2016
133 Series Direct-Operated Regulators
Table of Contents
Introduction...................................................................1
Specications...............................................................2
Principle of Operation...................................................2
Installation.....................................................................3
Overpressure Protection..............................................4
Startup..........................................................................5
Adjustment....................................................................6
Shutdown......................................................................6
Maintenance.................................................................6
Parts Ordering.............................................................11
Parts List.................................................................... 11
W1327
TYPES 133H, 133L AND 133Z REGULATORS
133 Series
W6803
TYPE 133HP REGULATOR
WARNING
!
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or re 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.
(Emerson™) 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.
Call a gas service person to service the
unit. Only a qualied person must install or
service the regulator.
Figure 1. 133 Series Gas Regulators
Introduction
Scope of the Manual
This manual provides specications, installation,
adjustment and maintenance instructions and parts
ordering information for the 133 Series regulators.
Only personnel qualied through training or experience
should install, operate and maintain this regulator. If
there are any questions concerning these instructions,
contact your local Sales Ofce before proceeding.
Product Description
The 133 Series direct-operated gas regulators, shown
in Figure 1 are primarily designed for industrial and
commercial applications supplying gas to furnaces,
burners and other appliances. The 133 Series
D100270X012
www.fisherregulators.com
133 Series
Specications
The Specications section lists the specications for the Type 133 Series direct-operated regulators. Factory
specication is stamped on the nameplate fastened on the regulator at the factory.
Available Constructions
Type 133H:
High pressure construction for outlet pressure
range of 1.5 to 10 psig / 0.10 to 0.69 bar. The
Type 133H can also use the 2 in. w.c. to 2 psig /
5 mbar to 0.14 bar springs of the Type 133L. The
maximum operating inlet pressure is 60 psig /
4.1 bar with a maximum emergency inlet pressure
of 125 psig / 8.6 bar.
Type 133HP:
Extra high pressure construction for outlet
pressure range of 2 to 60 psig / 0.14 to 4.1 bar.
The maximum operating and emergency inlet
pressure rating is 150 psig / 10.3 bar.
Type 133L:
Low pressure construction for outlet pressure
range of 2 in. w.c. to 2 psig / 5 mbar to 0.14 bar.
The maximum operating inlet pressure is 60 psig /
4.1 bar with a maximum emergency inlet pressure
of 125 psig / 8.6 bar.
Type 133Z:
Zero governor construction for outlet pressure
range of -1 to 4 in. w.c. / -2 to 10 mbar. The
maximum operating inlet pressure is 20 psig /
1.4 bar with a maximum emergency inlet pressure
of 125 psig / 8.6 bar.
Body Size and End Connection Styles
BODY SIZE BODY MATERIAL
IN. DN Cast Iron Body WCC Steel Body
2 50 NPT or CL125 FF Flanged NPT or CL150 RF Flanged
Outlet Pressure Ranges
See Table 1
Maximum Inlet Pressures
(1)
See Table 2
Maximum Outlet Pressures
See Table 2
Pressure Registration
External; downstream control line is required.
Temperature Capabilities
(1)
-20 to 150°F / -29 to 66°C
Control Line Connection
Types 133H, 133L and 133Z:
3/4 NPT (internal); connection will be positioned
directly over body outlet (standard position)
or 90 degrees right or left of standard position
if specied.
Type 133HP:
1/4 NPT (internal) connection positioned directly
over body outlet.
Vent Connection
Types 133H, 133L and 133Z:
1 NPT (internal) with screen; standard position is in
line with control line connection directly over body
outlet. Vent will always be positioned over the control
line connection.
Type 133HP:
1/2 NPT (internal) connection positioned directly
®
over body inlet with a Fisher
Type Y602-7
vent assembly.
Approximate Weight
Types 133H, 133L and 133Z NPT End
Connections: 35 lbs / 16 kg
Types 133H, 133L and 133Z Flanged End
Connections: 40 lbs / 18 kg
Type 133HP NPT End Connections:
56.5 lbs / 26 kg
Type 133HP Flanged End Connections:
62.5 lbs / 28 kg
1. The pressure/temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded.
balancing system enables the regulator to provide
accurate control gas pressure for maximum combustion
efciency despite varying inlet pressure conditions. The
single port construction provides bubble-tight shutoff.
An external downstream control line is required for the
operation of the regulator. A restriction collar is available
to reduce the ow capacity of the regulator.
2
Principle of Operation
Refer to the operational schematics in Figures 2 and 3.
In the 133 Series, downstream pressure is registered
under the diaphragm via the external control line and
is used as the operating medium. Increased demand
lowers the downstream pressure and allows the spring
to move the diaphragm and stem assembly down,
opening the valve disk and supplying more gas to the
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
BOOST PRESSURE
DIAPHRAGM
CONTROL SPRING
133 Series
DOWNSTREAM
CONTROL LINE
STEM
ORIFICE
A6555
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
BOOST PRESSURE
Figure 2. Operational Schematic of Type 133L Regulator (Also Typical of Type 133H)
VALVE DISK
downstream system. Decreased demand increases
the downstream pressure and moves the diaphragm
and stem assembly up, closing the valve disk and
decreasing the gas supply to the downstream system.
Boosting System
The 133 Series incorporates a balancing diaphragm
and a boosting system. When the regulator is locked
up, inlet pressure is registered on the top of the valve
disk and on the bottom of the balancing diaphragm
through registration holes in the top of the cage. Also,
downstream pressure is registered on the bottom
of the valve disk and on the top of the balancing
diaphragm through a passage formed by grooves in
the registration disk and an annular space between the
stem and stem sleeve.
When the valve disk is open, gas ows from the inlet
over the edge of the valve disk to the outlet. Under
the valve disk near the registration disk, there is little
gas ow. The gas pressure near the registration disk
is higher than it is in the ow path where gas velocity
BALANCING
DIAPHRAGM
REGISTRATION DISK
tends to lower the pressure. The higher pressure
near the disk is registered on the top of the balancing
diaphragm through the registration disk and the
annular space between the stem and stem sleeve.
This pressure registered on the top of the balancing
diaphragm aids downward disk travel and
compensates for spring and diaphragm effect. This
improves regulator range ability and performance.
Installation
Before installing the 133 Series regulators, inspect it
for shipping damage and be certain that the body and
orice are clean. Blow out the pipeline to remove pipe
scale and other foreign material.
The regulator may be installed in any position as long
as the ow through the body is the same as indicated
by the ow direction arrow on the body and the vent
opening is unobstructed and protected from the
entrance of rain, ice and other foreign material.
3
133 Series
Type 133HP
VENT
ASSEMBLY
DIAPHRAGM
DOWNSTREAM
CONTROL LINE
Downstream Control Line
WARNING
!
Downstream control line is Srequired for
proper operation of these regulators.
An external downstream control line must be installed
before putting the 133 Series regulators in operation.
Without the control line, the regulator will remain wideopen. The downstream control line should be a pipe
of at least 1/2 in. / 12.7 mm diameter; connect it to the
downstream pipe line at least 5 to 10 pipe diameters
from the regulator and in a straight section of pipe.
The external downstream control line connection on
the Type 133HP is 1/4 NPT.
A6883
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
BOOST PRESSURE
Figure 3. Operational Schematic of Type 133HP
If the regulator has threaded end connections, coat
external threads with pipe compound. For anged
end connections, tighten the ange bolts evenly.
Install a three valve bypass around the 133 Series if
continuous operation is necessary.
The regulator must be protected from damage by
vehicles and other outside sources.
Overpressure Protection
The 133 Series regulators have an outlet pressure
rating that is lower than the inlet pressure rating. Some
type of overpressure protection is needed if the actual
inlet pressure exceeds the outlet pressure rating.
Maximum operating inlet pressure for the 133 Series
regulators is given in Table 2. All models must
be protected against inlet pressure above their
listed maximum.
Regulator operation below these emergency pressure
limitations does not preclude the possibility of damage
from external sources or from debris in the gas line.
The regulator should be inspected for damage after any
overpressure condition.
Vent
The 133 Series vent is screened to prevent insects
or foreign material from entering. The Types 133H,
133L and 133Z regulators have a 1 NPT (internal)
connection and the Type 133HP has a 1/2 NPT
internal connection. If a vent to the atmosphere is
required for indoor installations, do the following:
• For Types 133H, 133L and 133Z — remove the
snap ring and screen (keys 8J and 8H, Figure 10,
11 or 12) and pipe the vent to the outside.
• For Type 133HP — remove the Type Y602-7
screened vent assembly and pipe nipple (keys 50
and 49, Figure 14) from the spring case (key 8)
and pipe the vent to the outside.
The vent pipe should be as short as possible with
minimum number of bends or elbows. The pipe should
also have the largest practical diameter. Install a
weather and bug resistant vent assembly on the outside
end of the vent pipe.
For indoor installation that have been piped to the
outside and for outdoor installations, the vent opening
must be positioned so that water, ice and other foreign
material cannot enter the spring case. Use care not to
place the vent opening below downspouts and eaves.
The vent opening should be checked periodically to be
sure that the opening has not been plugged with foreign
material. On some installations it may be necessary to
provide additional protection from the elements.
4
Table 1. 133 Series Outlet Pressure Ranges, Control Springs
133 Series
TYPE
(1)
133H
(1)
133HP
(1)
and 133H
133L
(1)
133Z
1. Pressure ranges shown are correct if the regulator is installed with the actuator portion above the body portion. If the regulator is installed with the actuator portion below the body, the
pressure ranges will be lowered by approximately 2 in. w.c. / 5 mbar for the Type 133L and by approximately 3 in. w.c. / 7 mbar for the Types 133H and 133Z.
2. If the 2 in. w.c. / 5 mbar to 2 psig / 0.14 bar springs (all 6 ranges) are used in the Type 133H, the pressure ranges will increase by approximately 1 in. w.c. / 2 mbar due to the weight of
the Type 133H parts (assuming that the actuator is installed above the body).
OUTLET PRESSURE RANGE
psig bar
1.5 to 3
2 to 5
5 to 10
2 to 5
4.5 to 10
6 to 20
16 to 30
26 to 40
36 to 50
45 to 60
2 to 4 in. w.c.
3.5 to 6 in. w.c.
5 to 9 in. w.c.
(2)
8.5 to 18 in. w.c.
14 to 28 in. w.c.
0.75 to 2
-1 to 1 in. w.c. -3 to 3 mbar
0 to 4 in. w.c. 0 to 10 mbar
0.10 to 0.21
0.14 to 0.34
0.34 to 0.69
0.14 to 0.34
0.31 to 0.69
0.41 to 1.4
1.1 to 2.1
1.8 to 2.8
2.5 to 3.4
3.1 to 4.1
5 to 10 mbar
9 to 15 mbar
12 to 22 mbar
21 to 45 mbar
35 to 70 mbar
0.05 to 0.14
Part Number Color Code
1H975927032
10A9440X012
1J146927142
17B8632X012
17B8633X012
10C1238X012
10C1240X012
10C1241X012
10C1242X012
10C1243X012
1D892527022
1D892627022
1D892727012
1D893227032
1D893327032
1H975827032
1K633427012
(Extension Spring)
1K633427012
(Extension Spring)
and
1D892527022
(Compression Spring)
Unpainted 2.00 50.8 0.075 1.91
Unpainted
CONTROL SPRINGS
Orange
Yellow
Blue
Yellow
Orange
Silver
Red
Blue
Green
White
Brown
Red
Black
White
Green
Blue
Brown
Free Length Wire Diameter
In. mm In. mm
6.91
6.47
6.19
8.50
8.50
8.25
8.25
8.25
8.25
8.25
6.13
7.53
7.88
7.50
7.25
7.09
2.00
6.13
176
164
157
216
216
210
210
210
210
210
156
191
200
190
184
180
50.8
156
0.250
0.283
0.375
0.282
0.343
0.375
0.438
0.500
0.500
0.531
0.109
0.112
0.130
0.156
0.182
0.225
0.075
0.109
6.35
7.19
9.52
7.16
8.71
9.53
11.1
12.7
12.7
13.5
2.77
2.85
3.30
3.96
4.62
5.72
1.91
2.77
Table 2. Maximum Inlet and Outlet Pressures
TYPE NUMBER
PRESSURES
Maximum Operating Inlet Pressure 60 4.1
Maximum Emergency Inlet Pressure 125 8.6 125 8.6 125 8.6
Maximum Operating Outlet Pressure
Maximum Outlet Pressure Over
Outlet Pressure Setting
Maximum Emergency Outlet
(Casing) Pressure
1. With highest spring range available only.
(1)
133H 133HP 133L 133Z
psig bar psig bar psig bar psig bar
150 10.5
10 0.69
3 0.21 3 0.21 3 0.21
15 1.0 150 10.5 15 1.0 15 1.0
Setpoint
plus 40
Setpoint
plus 2.8
60 4.1 20 1.4
2 0.14 4 in. w.c. 10 mbar
Startup
WARNING
!
If the downstream system is already
pressured by another regulator or by a
manual bypass, then extra precautions
must be taken when placing the 133 Series
in service. The outlet of the regulator must
never be subjected to pressure higher
than the inlet pressure or the balancing
diaphragm may be damaged. Also, the
control line pressure must never exceed
the set point dictated by the spring setting
by more than 3 psig / 0.21 bar or the
valve seat or diaphragm plates can be
damaged. The procedure used in putting
the regulator in service must be planned
accordingly. Pressure gauges should
always be used to monitor downstream
and control line pressures during startup.
If the downstream system is not pressured by
another regulator or by manual bypass, use the
following procedure:
1. Check to see that all appliances are turned off.
2. Slowly open the upstream shutoff valve.
3. Slowly open the downstream shutoff valve.
4. Check all connections for leaks.
5. Make nal control spring adjustments according to
the adjustment procedures.
5
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