Data Sheet

Bulletin 71.1:CP400
4
Table 3. Inlet Pressure Ratings and Flow and Sizing Coefcients
ORIFICE SIZE MAXIMUM OPERATING INLET PRESSURE WIDE-OPEN FLOW COEFFICIENTS
C
1
IEC SIZING COEFFICIENTS
In. 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
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 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 shutoff module.
Table 1. Available Congurations
Table 2. Body Sizes, Materials, End Connections and Pressure Ratings
TYPE BODY MATERIAL BODY SIZE END CONNECTION
FACE-TO-FACE DIMENSION PRESSURE RATING
In. mm psig bar
CP400 Gray Cast Iron
1-1/4
NPT
4.5 114
175 12.1
1-1/2
2 5 127
NPS 2 / DN 50 CL125 FF 10 254
CP400,
CP403
and CP404
Ductile Iron
1-1/4
NPT
4.5 114
290 20.0
1-1/2
2 5 127
1-1/4
Rp
4.5 114
1-1/2
2 5 127
NPS 2 / DN 50 CL125 FF / CL150 FF
10 254
NPS 2 / DN 50 PN 10/16 232 16.0
Steel
1-1/4
NPT 4.5 114
290 20.0
1-1/2
1-1/4
Rp
7.5 191
1-1/2 10 254
TYPE
EMERGENCY OUTLET
PRESSURE (CASING)
MAXIMUM OUTLET PRESSURE TO
AVOID INTERNAL PARTS DAMAGE
MAXIMUM OPERATING
OUTLET PRESSURE
CP400 and CP404 25 psig / 1.7 bar 25 psig / 1.7 bar 20 psig / 1.4 bar
CP403 25 psig / 1.7 bar 5 psi / 0.34 bar over setpoint 7.5 psig / 0.52 bar
Table 4. Maximum Outlet Pressures
Specications (continued)
Approximate Weights
With threaded body
Type CP400: 11 lbs / 5 kg
Type CP403: 20.5 lbs / 9 kg
Type CP404: 13.2 lbs / 6 kg
Approximate Weights (continued)
Add 8.6 lbs / 4 kg to weights listed with anged body
Designed, Tested and Evaluated Consistent with:
ASME B16, ASME Section VIII DIV I, ASTM B117
(Corrosion Resistance)