CP400 Series
3
Available Congurations
See Table 1
Body Sizes, End Connections Styles and
Pressure Rating
(1)
See Table 4
Maximum Operating Inlet Pressure
(1)
See Table 2
Maximum Outlet Pressures
(1)
See Table 3
Outlet Pressure Ranges
See Table 5
Orice Sizes
See Table 2
Flow and IEC Sizing Coefcients
See Table 2
Temperature Capabilities
(1)(2)
-20 to 150°F / -29 to 66°C
Control Line Connection
3/4 NPT
Pressure Registration
Types CP400IT, CP400IN, CP403IT, CP403IN,
CP404IN and CP404IT: Internal
Types CP400ET, CP400EN, CP403ET, CP403EN,
CP404EN and CP404ET: External
Specications
Optional Internal Token Relief Performance
(Located in Type 67CPR Pressure Loading Regulator)
Token relief is a low capacity relief intended to
relieve overpressure occurrences due to minor
seat leakage or thermal expansion only; other
overpressure protection must be provided if inlet
pressure can exceed the maximum pressure rating
of downstream equipment or maximum outlet
pressure rating of the regulator.
Token Relief Start-to-Discharge
See Table 6
Factory Setpoint Inlet Pressures for Various
Orice Sizes
3/16-inch / 4.8 mm: 60 psig / 4.1 bar
1/4-inch / 6.4 mm: 40 psig / 2.8 bar
3/8-inch / 9.5 mm: 25 psig / 1.7 bar
1/2-inch / 13 mm: 25 psig / 1.7 bar
5/8-inch / 16 mm: 15 psig / 1.0 bar
3/4-inch / 19 mm: 10 psig / 0.69 bar
Option
1/4 NPT Type P593-1 Aluminum Body
Cellulose Filter
Approximate Weights
With threaded body
Type CP400: 11 pounds / 5.0 kg
Type CP403: 20.5 pounds / 9.3 kg
Type CP404: 13.2 pounds / 6.0 kg
Add 8.6 pounds / 3.9 kg to weights listed
with anged body
1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
2. Product has passed Regulator Technologies testing for lockup, relief start-to-discharge and reseal down to -40 degrees.
ORIFICE SIZE
MAXIMUM OPERATING
INLET PRESSURE
FLOW COEFFICIENTS
(WIDE OPEN)
C
1
IEC SIZING COEFFICIENTS
Inch mm psig bar C
g
C
v
X
T
F
D
F
L
3/16 4.8 125 8.6 27 0.97 27.7 0.50 0.91
0.89
1/4 6.4 125 8.6 50 1.77 28.2 0.50 0.92
3/8 9.5 80 5.5 113 3.72 30.4 0.58 0.89
1/2 13 60 4.1 182 5.61 32.4 0.66 0.82
5/8 16 50 3.4 284 7.26 39.1 0.97 0.74
3/4 19 40 2.8 356 9.83 36.2 0.83 0.72
Table 2. Inlet Pressure Ratings and Flow and Sizing Coefcients
The Specications section lists the specications for the regulators. The following information is stamped on the
regulator at the factory: Type, date of manufacture, spring range, orice size, maximum inlet pressure, maximum
operating outlet pressure and outlet pressure which may damage parts.
(12 pages)
(1 pages)
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