CSB400 Series
2
Introduction
Scope of the Manual
This Instruction Manual provides installation,
maintenance, and parts ordering information for the
CSB400 Series regulators. Instructions and parts
lists for other equipment mentioned in this instruction
manual are found in separate manuals.
Description
CSB400 Series regulators are typically installed on
industrial and commercial applications. See Figure 2
for Available Configurations. 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 configurations such as
Types CSB410 and CSB430, which are installed
upstream of the primary regulator to provide
overpressure protection.
Additional overpressure protection options include
Types CSB403 and CSB423, which offer True-
Monitor™ protection provided by an integral monitor
module installed on the inlet side of the valve
body. This Integral Monitor assumes control of the
pressure to the downstream system should the
primary regulator fail to regulate. The Types CSB404,
CSB424, and CSB454 are examples of CSB400
Series configurations that offer a slam-shut module
that shuts off the flow of gas to the downstream
system in the event of outlet pressure rising above or
falling below the predefined levels due to a failure.
Optional token relief is available, which acts as a
low capacity internal relief valve to relieve minor
overpressure situations due to nicks or other minor
damage to the orifice or disk, or due to thermal
expansion of the downstream system.
Internal, external, or dual outlet pressure registration
is available. Constructions with dual or external
registration require an external control line / sense line.
Specifications
The Specifications section lists the specifications for the
CSB400 Series Regulators. The following information is
stamped on the nameplate of CSB400 Series: Type and
Class, Maximum Outlet Pressure, and Spring Range.
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
3
With Integral Monitor Module
(4)
4
With Type VSX4 Slam-shut Module
(5)
PRESSURE REgISTRaTIOn
D
Dual Registration
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 Monitor option.
2. Not available with Integral Monitor or Token Relief option.
3. Available with External Pressure Registration only.
4. Reference Instruction Manual D103126X012 for information regarding the Type TM600 Integral Monitor module.
5. Reference Instruction Manual D103127X012 for information regarding the Type VSX4 Slam-shut module.
Figure 2. Available Configurations