Emerson 133, 133HP Instruction Manual

Instruction Manual
Form 5007

June 2013

133 Series Direct-Operated Regulators

Table of Contents

Introduction...................................................................1

Speci cations...............................................................2

Principle of Operation...................................................2

Installation.....................................................................3

Overpressure Protection..............................................4

Startup..........................................................................4

Adjustment....................................................................5

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. (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.

Call a gas service person to service the

unit.  Only a quali ed person must install 

or service the regulator.

Figure 1. 133 Series Gas Regulators

Introduction

Scope of the Manual

This manual provides speci cations, installation,
adjustment and maintenance instructions, and parts

ordering information for the 133 Series regulators.

Only personnel quali ed through training or experience
should install, operate, and maintain this regulator. If
there are any questions concerning these instructions,
contact your local Sales Of ce 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

www.fisherregulators.com

D100270X012

133 Series

Specications

The Specications section lists the specications for the Type 133 Series direct-operated regulators. Factory
specication 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 inches 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 inches 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 inches 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

INCH 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 specied.

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 pounds / 16 kg

Types 133H, 133L, and 133Z Flanged End
Connections: 40 pounds / 18 kg

Type 133HP NPT End Connections:

56.5 pounds / 26 kg

Type 133HP Flanged End Connections:

62.5 pounds / 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

Principle of Operation

accurate control gas pressure for maximum combustion
efciency 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.

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

2

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
orice 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

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.

Without the control line, the regulator will remain wide­open. The downstream control line should be a pipe of
at least 1/2 inch / 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.

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.

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.

Downstream Control Line

An external downstream control line must be installed
before putting the 133 Series regulators in operation.

4

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.

Table 1. 133 Series Outlet Pressure Ranges, Control Springs

133 Series

TYPE

(1)

133H

(1)

133HP

(1)

133L

and 133H

(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 inches w.c. / 5 mbar for the Type 133L and by approximately 3 inches w.c. / 7 mbar for the Types 133H and 133Z.

2. If the 2 inches 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 inch 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 inches w.c.

3.5 to 6 inches w.c.
5 to 9 inches w.c.

(2)

8.5 to 18 inches w.c.
14 to 28 inches w.c.

0.75 to 2

-1 to 1 inch w.c. -3 to 3 mbar

0 to 4 inches w.c. 0 to 10 mbar

12 to 22 mbar
21 to 45 mbar
35 to 70 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

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

Inch mm Inch 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 inches

w.c.

10 mbar

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.

Adjustment

To increase the pressure setting, remove the closing
cap (key 9, Figures 10, 11, 12, and 14) and turn
the adjusting screw (key 11) clockwise; to lower the
setting, turn the adjusting screw counterclockwise.
A pressure gauge should always be used when
adjustments are being made. Do not adjust the spring
to produce an outlet pressure setting above the limit

5