
CSB400 Series
3
TYPE NUMBER
OPTIONS
C S B 4
PRESSURE CONSTRUCTION AND UPSTREAM MONITOR APPLICATIONS
0 Low Pressure Applications (Outlet Pressure: 17 to 100 mbar / 7 to 40 inches w.c.)
1 Low Pressure, Upstream Monitoring Applications
(1)(3)
(Outlet Pressure: 17 to 100 mbar / 7 to 40 inches w.c.)
2 Medium Pressure Applications (Outlet Pressure: 100 to 517 mbar / 40 to 208 inches w.c.)
3 Medium Pressure, Upstream Monitoring Applications
(1)(3)
(Outlet Pressure: 100 to 517 mbar / 40 to 208 inches w.c.)
5 High Pressure Applications
(2)
(Outlet Pressure: 0.50 to 3.0 bar / 7 to 43.5 psig)
OVERPRESSURE PROTECTION
0 Without Overpressure Protection Module
0F Low Temperature Capability, Without Overpressure Protection Module
3 With Integral True-Monitor™ Module
(4)
3F Low Temperature Capability, With Integral True-Monitor Module
(4)
4 With Type VSX4 Slam-shut Module
(5)
4F Low Temperature Capability, With Type VSX4 Slam-shut Module
(5)
PRESSURE REGISTRATION
D Dual Registration (Best solution for quick changing loads)
E External Registration
I Internal Registration
RELIEF
N No Relief
T Internal Token Relief
Example: Type number CSB424DT: Type CSB400 regulator constructed for medium pressure applications, with Type VSX4 slam-shut module,
Dual pressure registration and Internal Token relief.
1. Not available with Integral True-Monitor option.
2. Not available with Integral True-Monitor or Token Relief option.
3. Available with External Pressure Registration only.
4. Reference Instruction Manual D103126X012 for information regarding the Type TM600 Integral True-Monitor module.
5. Reference Instruction Manual D103127X012 for information regarding the Type VSX4 Slam-Shut module.
Table 1. Available Congurations
!
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
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 qualied person must install
or service the regulator.
Description
CSB400 Series regulators are typically installed on
industrial and commercial applications. See Table 1 for
Available Congurations. Low, Medium and High outlet
pressure constructions are available via Types CSB400,
CSB420 and CSB450, respectively, that provide outlet
setpoints ranging from 17 mbar to 3.0 bar / 7 inches w.c.
to 43.5 psig. Also available are upstream monitoring
congurations such as Types CSB410 and CSB430,
which are installed upstream of the primary regulator to
provide overpressure protection.
Types that include an “F” refer to the cold temperature
construction of the base Type number. For example, the
Type CSB404F provides a cold temperature construction
of the Type CSB404. Refer to the Operating Temperature
section found on the following page for additional
information regarding temperature capabilities and refer
to Table 7 for inlet pressure limitations. For types that
include an “F”, refer to the base type number for general
information such as Principles of Operation, Maintenance
instructions, Warnings and Cautionary notes.
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