Fisher CS403 Instruction Manual page 2

CS400 Series
TYPE NUMBER
C S 4 0
0
3
4
ORIFICE SIZE
TYPE
In.
3/16
1/4
CS400, 5/16
CS403 and 3/8
CS404 1/2
5/8
3/4
WARNING
!
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or fire 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, Inc.
(Emerson™) 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 qualified person must install
or service the regulator.
2
Table 1. Available Configurations
OVERPRESSURE PROTECTION MODULE
Without Overpressure Protection Module
With Integral Monitor Module
With Slam-shut Module
PRESSURE REGISTRATION
E External Registration
I Internal Registration
RELIEF
N Non-Relief
T Token Internal Relief
R Internal Relief
Example: Type number CS404IT: CS400 regulator constructed with Type VSX4 slam-shut module,
with internal pressure registration and with token relief.
1. Reference Instruction Manual D103126X012 for information regarding the Integral Monitor module.
2. Reference Instruction Manual D103127X012 for information regarding the Type VSX4 safety shut-off module.
3. Available only with Non-Relieving or Token Relief options, not Internal Relief.
Table 2. Inlet Pressure Ratings and Flow and Sizing Coefficients
MAXIMUM OPERATING
INLET PRESSURE
mm psig bar
4.8 125 8.6
6.4 125 8.6
7.9 100 6.9
9.5 60 4.1
12 40 2.8
16 30 2.1
19 20 1.4
OPTIONS
(1)(3)
(2)(3)
(3)
FLOW COEFFICIENTS
(WIDE OPEN)
C
C C
g v
27 0.97 27.7
50 1.77 28.2
82 2.90 28.3
113 3.72 30.4
182 5.61 32.4
284 7.26 39.1
356 9.83 36.2
Description
CS400 Series regulators are typically installed on
industrial and commercial applications. See Table 1 for
available configurations. Constructions with External
Registration, e.g., Type CS400EN, require an external
control line.
Optional internal relief is available as well as low
capacity token relief. Additional overpressure
protection options include the Type CS403 that offers
True-Monitor Protection, which is provided by an
TM
Integral Monitor installed on the inlet side of the valve
body that assumes control of the pressure to the
downstream system should the primary regulator cease
to regulate downstream flow. The Type CS404 offers
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.
IEC SIZING COEFFICIENTS
1
X F
T D
0.50 0.91
0.50 0.92
0.50 0.94
0.58 0.89
0.66 0.82
0.97 0.74
0.83 0.72
F
L
0.89