CP400 Series
2
Description
The CP400 Series regulators are pressure-loaded
regulators intended for general pressure reduction
for commercial and industrial applications using
pressure factor measurement, also referred to as xed
factor billing.
Overpressure protection options include the
Type CP403 which offers 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 downstream system pressure
should the primary regulator no longer regulate.
Another Overpressure protection option is provided
by the Type CP404, which offers an integral slam-shut
module installed on the inlet side of the valve body that
shuts off the ow of gas to the downstream system
in the event of outlet pressure rising above or falling
below the predened levels.
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 orice or disk, or due to thermal
expansion of the downstream system. The Token
relief is located in the Type 67CPR pressure
loading regulator.
Internal and external outlet pressure registration is
available. Constructions with external registration
require an external control line/sense line.
TYPE NUMBER
OPTIONS
C P 4 0
OVERPRESSURE PROTECTION MODULE
0 Without Overpressure Protection Module
3 With Integral Monitor Module
(1)
4 With Slam-shut Module
(2)
PRESSURE REGISTRATION
E External Registration
I Internal Registration
RELIEF
N Non-Relief
T Token Internal Relief
Example: Type number CP404IT: CP400 Series regulator construction with Type VSX4 Slam-shut module, Internal pressure
registration and Token relief.
1. Refer to Instruction Manual D103126X012 for information regarding the Integral Monitor Module.
2. Refer to 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 Emerson
Process Management Regulator
Technologies, Inc. (Regulator
Technologies) instructions.
If 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.
(12 pages)
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