Fisher 133L User Manual

133 Series
2
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.
1. The pressure/temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded.
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 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 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
balancing system enables the regulator to provide
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.
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

Fisher 133L Specifications

General

Brand	Fisher
Model	133L
Category	Controller
Language	English