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Specifications
The Specifications section on the following page lists the specifications for the CS400 Series regulators. The following
information is stamped on the regulator at the factory: type number, date of manufacture, spring range, orifice size,
maximum inlet pressure, maximum operating outlet pressure and outlet pressure which may damage regulator parts.
Available Configurations
See Table 1
Body Sizes, End Connection Styles and
Pressure Rating
(1)
See Table 4
Maximum Inlet Pressures
(1)
Emergency:
175 psig / 12.1 bar
Operating:
See Table 2
Operating Pressure Ranges
(1)
Regulator:
See Table 5
Integral Monitor Module:
See Table 6
Slam-shut Module:
See Tables 7 and 8
Maximum Outlet Pressures
(1)
Emergency (Casing):
25 psig / 1.7 bar
To Avoid Internal Parts Damage:
5 psig / 0.34 bar over set pressure
Operating:
5.5 psig / 0.38 bar
Flow Coefficients and Orifice Sizes
See Table 2
IEC Sizing Coefficients
See Table 2
Spring Case Vent Connection
1 NPT
Operating Temperature (TS)
(1)(2)
According to PED Standards:
All Types: -4 to 150°F / -20 to 66°C
Non-PED:
All Types: -20 to 150°F / -29 to 66°C
Pressure Registration
Internal or External
Approximate Weights
With Threaded Body
Type CS400:
9 lbs / 4 kg
Type CS403:
18.5 lbs / 8 kg
Type CS404:
11.2 lbs / 5 kg
With Flanged Body
Add 8.6 lbs / 4 kg to weights listed
PED Conformity Statement and Information
The CS400 Product Series is in conformity with the
Pressure Equipment Directive PED 97/23/EC.
The exception to this previous statement is the
Type CS403 which is not yet certified to conform
with the PED Directive.
Pressure regulator does not require any
supplementary upstream safety accessory for
protection against overpressure compared with its
design pressure PS, when upstream reducing
station is sized for a max downstream incidental
MIPd <= 1.1 PS.
1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
2. Product has passed Emerson testing for lockup, relief start-to-discharge and reseal down to -40 degrees.
Table 3.
PED Information
TYPE
DESCRIPTION
PED CATEGORY
FLUID GROUP
CS400
Base regulator
I
Groups 1 and 2 according to PED 97/23/EC, 1st and 2nd family gas according to
EN 437 or other gases (compressed air, nitrogen).
The gas must be non-corrosive, clean (filtration on inlet side necessary) and dry.
CS404
Regulator with Slam-Shut Module
IV
European EN Reference Standards
EN 334, EN 14382
