Emerson CP200 Data Sheet

Bulletin 71.1:CP200

December 2013

CP200 Series Commercial / Industrial Pressure­Loaded Pressure Reducing Regulator

Figure 1. CP200 Series Pressure Loaded Regulator

Features and Bene ts

• Wide Range of NPT Body Sizes

• Easy to Install and Maintain

• Highly Con gurable

• Secondary Seat™ Protection

• Only Standard Tools Required for Pressure
Adjustment and Ori ce Removal

• Fixed Factor / Pressure Factor
Measurement (PFM) Accuracy Capabilities

D103135X012

www.fisherregulators.com

Bulletin 71.1:CP200

TYPE 67CP PRESSURE
LOADING REGULATOR

CLOSING
SPRING

DIAPHRAGM
HEAD

DIAPHRAGM

ORIFICE

Figure 2. Typical CP200 Series Cut-away View

Introduction

The CP200 Series pressure loaded regulators have

been engineered to  t a multitude of pressure reducing

applications including commercial and industrial
installations. The CP200 Series provides accurate

control for use in pressure factor measurement ( xed
factor billing) applications. This  exibility is provided
by the various body end connection sizes, outlet
pressure settings, and ori ce sizes.

EXTERNAL
CONTROL LINE
PLUG (DO NOT
REMOVE IF UNIT IS
PRESSURIZED)

VALVE DISK

VALVE STEM

LEVER

LOWER
CASING

Overpressure Protection Options
Available:

• Token Relief—Provides a small capacity or token
relief located in the Type 67CPR pressure loading
regulator that relieves minor overpressure caused by
thermal expansion or minor nicks in the ori ce or disk.

• Secondary Seat™ Protection—Provides lockup
via a secondary seating and disk surface in the
event that damage to the primary disk or ori ce
seating surface, or debris in the  ow path, inhibit
primary lockup. Secondary Seat protection does

not provide additional overpressure protection in

the event the secondary seat or disk is damaged
by debris or contamination in the pipeline or from
conditions that would cause the regulator to go
wide open. See page 6 for additional information.

2

Bulletin 71.1:CP200

Specications

The Specications section lists the specications for the CP200 Series Regulators. The following information is
stamped on the nameplate of CP200 Series: Type Number, Maximum Outlet Pressure, and Spring Range.

Available Congurations

See Table 1

Body Sizes, Material, End Connections, and
Pressure Rating

(1)

See Table 2

Inlet Pressure Ratings

(1)

See Table 3

Maximum Outlet Pressures

(1)

Emergency Casing: 25 psig / 1.7 bar

Operating: 20 psig / 1.4 bar

Token Relief Performance

Approximate Token Relief Start-to-Discharge:

See Table 5

Approximate Weight

10 pounds / 5 kg

Construction Materials

Type CP200IN Main Valve and Actuator

Body: Gray Cast Iron
Body O-ring: Nitrile (NBR)
Closing Cap: Aluminum
Adjusting Screw: Aluminum
Diaphragm Case, Spring Case,

Outlet Pressure Range

1 to 20 psig / 69 mbar to 1.4 bar
See Table 4

Flow Capacities

See Tables 6 through 23

Flow Coefcients and Orice Sizes

See Table 3

IEC Sizing Coefcients

See Table 3

Temperature Capabilities

(1)(2)

-20 to 150°F / -29 to 66°C

Pressure Registration

Internal

Pressure Loading Regulator Spring Case Connection

1/4 NPT

Factory Setpoint Inlet Pressures for Various

Orice Sizes

1/8 inch / 3.1 mm: 80 psig / 5.5 bar
3/16 inch / 4.7 mm: 60 psig / 4.1 bar

and Valve Stem: Aluminum
Diaphragm Plate: Steel

Orice: Aluminum

Pusher Post: Aluminum
Diaphragm and Disk: Nitrile (NBR)
Closing Spring: Stainless steel
Relief Valve Spring: Stainless steel
Relief Valve Spring Retainer: Zinc-plated steel
Relief Valve Seat: Aluminum
Lever: Zinc-plated steel
Lever Pin: Stainless steel
Spring Seat: Aluminum

67CP Series Pressure Loading Regulator

Spring: Stainless steel
Body: Aluminum
O-ring and Soft Seat: Nitrile (NBR)
Valve Stem: Aluminum
Valve Plug: Nitrile (NBR)
Diaphragm: Nitrile (NBR)

Designed, Tested, and Evaluated Consistent With:

ASME B16, ASME Section VIII DIV I, ASTM B117
(Corrosion Resistance)

1/4 inch / 6.4 mm: 40 psig / 2.8 bar
5/16 inch / 7.9 mm: 30 psig / 2.1 bar
3/8 inch / 9.5 mm: 25 psig / 1.7 bar
1/2 inch / 13 mm: 25 psig / 1.7 bar

1. The pressure/temperature limits in this Bulletin or any applicable standard limitation should not be exceeded.

2. Product has passed Emerson Process Management Regulator Technologies, Inc. testing for lockup, relief start-to-discharge and reseal down to -40 degrees.

3

Bulletin 71.1:CP200

Table 1. Available Configurations

TYPE NUMBER

C P 2 0

OVERPRESSURE PROTECTION MODULE

0 Without Overpressure Protection Module

5 With Secondary Seat™ Protection

6 With Secondary Seat Protection with bleed to indicate Secondary Seat is functioning

PRESSURE REGISTRATION

I Internal Registration

RELIEF

N Non-Relief

T Token Internal Relief

Table 2. Body Sizes, Material, End Connection, and Pressure Rating

TYPE BODY SIZE

CP200, CP205,

and CP206

3/4

3/4 x 1

3/4 x 1-1/4

1

1 x 1-1/4

1-1/4

END

CONNECTION

BODY MATERIAL

NPT Gray Cast Iron 4 102 175 12.1

OPTIONS

FACE-TO-FACE DIMENSION PRESSURE RATING

Inch mm psig bar

Table 3. Inlet Pressure Ratings and Flow and Sizing Coeffiecients

MAXIMUM OPERATING

INLET PRESSURE

TYPE

ORIFICE SIZE

Inch mm psig bar C

1/8 3.2 125 8.6 12 0.40 30 0.53 0.87

3/16 4.8 125 8.6 24 0.80 30 0.58 0.82

CP200

1/4 6.4 125 8.6 44 1.52 29 0.53 0.85

3/8 9.5 60 4.1 102 3.30 31 0.60 0.83

1/2 13 40 2.8 172 4.40 39 0.97 0.72

1/8 3.2 125 8.6 12 0.4 30 0.53 0.87

CP205 and

CP206

3/16 4.8 125 8.6 24 0.8 30 0.58 0.82

1/4 6.4 125 8.6 44 1.52 29 0.53 0.85

5/16 7.9 100 6.9 70 2.7 30 0.53 0.85

1. Inlet pressures based on lockup performance. For maximum inlet pressure values with optimum regulating performance refer to the applicable Flow Capacity table.

2. To comply with ANSI B109.4 relief requirements, the maximum inlet pressure may need to be reduced.

FLOW COEFFICIENTS

(1)(2)

(WIDE-OPEN)

g

C

C

v

1

IEC SIZING COEFFICIENTS

X

T

F

D

F

L

0.89

4

TYPE 67CP PRESSURE
LOADING REGULATOR

VALVE DISK

Bulletin 71.1:CP200

CONTROL SPRING

CLOSING SPRING

DIAPHRAGM

ORIFICE

M1129

INLET PRESSURE

OUTLET PRESSURE

ATMOSPHERIC PRESSURE

LOADING PRESSURE

Figure 3. Type CP200IN Pressure Loaded Pressure Reducing Regulator with Internal Registration Operational Schematic

VALVE STEM

Principle of Operation

Refer to Figure 3. The CP200 Series has spring-to­close construction and uses a 67CP Series pressure
loading regulator to supply loading pressure to the top
of the main diaphragm. Adjustment to the downstream
pressure is therefore made by adjusting the loading
pressure regulator. The load pressure supplied by the
loading regulator is constant and equal to the desired

LEVER

MAIN REGULATOR

Decreasing Downstream Demand

As downstream demand decreases the outlet
pressure registering on the underside of the main
diaphragm increases forcing the main diaphragm
upward. This upward motion is transferred through
the lever causing the main disk to move toward the
orice seating surface to reduce ow to meet the
required demand.

PRESSURE RETAINING
PLUG (DO NOT REMOVE)

downstream pressure plus the pressure required to

overcome the light closing spring.

Zero Downstream Demand (Lockup)

As downstream demand decreases further, the outlet

Type CP200 Base Regulator

pressure registering under the main diaphragm

together with the closing spring act to close the

Increasing Downstream Demand

As downstream demand increases the outlet
pressure registering on the underside of the main

diaphragm decreases and the constant loading

pressure above the main diaphragm forces the
diaphragm downward. This downward diaphragm
motion is transferred through the lever causing the
main disk to move away from the orice seating

main disk against the orice seating surface. At this
point the loading regulator will continue to supply
a small amount of gas downstream that is equal to
the capacity of the bleed restriction in the diaphragm
assembly. As downstream demand decreases to zero
ow outlet pressure rises to meet the lock-up pressure
of the loading regulator. This causes the loading
regulator to lockup to stop all ow downstream.

surface to supply additional ow downstream to the
required demand.

5

Bulletin 71.1:CP200

CONTROL SPRING

RELIEF V LVE STEM

VALVE STEM

TYPE CP206

SECONDARY SEAT WITH METAL

TO METAL BLEED

TYPE 67CP PRESSURE
LOADING REGULATOR

CONTROL SPRING

CLOSING SPRING

DIAPHRAGM

SECONDARY SEAT™ DETAIL

PRIMARY DISK

NORMAL OPERATION

M1165

INLET PRESSURE

OUTLET PRESSURE

ATMOSPHERIC PRESSURE

LOADING PRESSURE

PRIMARY ORIFICE

SEATING SURFACE

NORMAL LOCKUP

SECONDARY SEATING

SURFACE

VALVE STEM

LEVER

SECONDARY SEAT DETAILED VIEW

DEBRIS OBSTRUCTING

LOCKUP

MAIN REGULATOR

SECONDARY SEAT

LOCKUP

PRESSURE RETAINING
PLUG (DO NOT REMOVE)

SECONDARY

ORIFICE SEATING

SURFACE

Figure 4. Type CP205IT Pressure Loaded Pressure Reducing Regulator with Internal Registration and Token Relief Operational Schematic

6

Bulletin 71.1:CP200

Type CP205 with Secondary Seat™
Protection

Refer to Figure 4. The Type CP205 provides
Secondary Seat Protection. As downstream demand
decreases and downstream pressure rises to the
regulator pressure lock-up value, the regulator will
lockup. If, however, damage has occurred to the
primary disk, to the primary orice’s seating surface, or
debris has become lodged between the primary disk
and primary orice, the outlet pressure will continue
to rise. This additional pressure causes the primary
disk to apply additional force to the orice seating
surface, which causes the Secondary seating surface
to move toward the Secondary disk or sealing surface.
If downstream demand decreases to zero, then the
secondary seating surface will contact the sealing
surface to provide lockup.

Type CP206 with Secondary Seat
Protection with Bleed

The Type CP206 provides small bleed to the
downstream system as an indication that the
Secondary Seat is providing lockup. In the event that
the primary orice and disk cannot provide lockup, the
secondary seating surface will move into contact with
a metal disk. This metal to metal interface will allow
a small amount of gas to bleed downstream thereby
increasing outlet pressure until the internal relief valve

begins to discharge gas to the atmosphere. The

odor of this discharged gas provides an indication
that the regulator is relying on the Secondary Seat for

overpressure protection.

Types CP205 and CP206
Secondary Seat Protection Limitations

Secondary Seat Protection does not provide additional
overpressure protection in the event the secondary
seating surface or disk is damaged by debris or
contamination in the pipeline or from conditions that
would cause the regulator to go wide open. When
selecting Secondary Seat Protection option, it is

recommended that:

• Other additional overpressure protection methods
be added in the downstream system as discussed
in the section on Overpressure Protection; and

• An annual downstream lock-up pressure test be
done to determine if the Secondary Seat Protection
option is operating and functional.

Installation

The CP200 Series regulators may be installed in
any position. However, the spring case vent of the
Type 67CP loading regulator should be pointed
downward. If gas escaping through Type 67CPR
pressure loading regulator token internal relief valve
could constitute a hazard, the spring case vent must
be piped to a location where escaping gas will not be
hazardous. If the vented gas will be piped to another
location, obstruction-free tubing or piping at least
equal to the vent, and the end of the vent pipe must
be protected from anything that might clog it.

Overpressure Protection

The CP200 Series is an internally registered pressure

reducing regulator and has outlet pressure ratings

lower than the inlet pressure ratings. Complete
downstream overpressure protection is needed if the
actual inlet pressure exceeds the outlet pressure rating.

Token Relief

Types with a “T” in the type number, e.g., Type CP200IT
provide an optional small capacity or token relief located
in the Type 67CPR to relieve minor overpressure
caused by thermal expansion or minor nicks in the
orice or disk. Refer to Table 5 for Start-to-Discharge

Pressure Above Setpoint values.

Secondary Seat™ Protection

This overpressure protection provides lockup via a
secondary seating and disk surface in the event that
damage to the primary disk or orice seating surface,
or debris in the ow path, inhibit primary lockup.

Overpressuring any portion of a regulator or
associated equipment may cause personal injury,
leakage, or property damage due to bursting of
pressure-containing parts or explosion of accumulated

gas. Provide appropriate pressure relieving or
pressure limiting devices to ensure that the limits in

the Specications section is not exceeded. Regulator
operation within ratings does not prevent the possibility
of damage from external sources or from debris in the
pipeline. Refer to the relief sizing coefcients and the
Capacity Information section to determine the required
relief valve capacity.

7

Bulletin 71.1:CP200

Table 4. Outlet Pressure Ranges

OUTLET PRESSURE RANGE

psig bar Inch mm Inch mm

1 to 2 69 mbar to 0.14 bar GE30199X012 Yellow Stripe 0.078 2.0 1.35 34.3

2 to 5 0.14 to 0.34 GE27213X012 Orange Stripe 0.100 2.5 1.47 37.3

5 to 10 0.34 to 0.69 GE39890X012 Black Stripe 0.114 2.9 1.47 37.3

10 to 20 0.69 to 1.4 GE30200X012 Purple Stripe 0.137 3.5 1.42 36.1

1. Oulet pressure range is controlled by 67CP Series pressure loading regulator spring.

Table 5. Token Relief Valve Start-to-Discharge Pressure Above Setpoint

SPRING RANGE

psig bar psig mbar

1 to 2 69 mbar to 0.14 bar GE30199X012 Yellow Stripe 1 to 3.5 69 to 241

2 to 5 0.14 to 0.34 GE27213X012 Orange Stripe 1.75 to 5.5 121 to 379

5 to 10 0.34 to 0.69 GE39890X012 Black Stripe 2.5 to 6.75 172 to 465

1. Outlet pressure range is controlled by 67CP Series pressure loading regulator spring. Only the 1 to 2, 2 to 5, and 5 to 10 psig / 0.07 to 0.14; 0.14 to 0.34; and 0.34 to 0.69 bar

spring ranges are available with Token Relief.

Capacity Information

Tables 6 through 23 give the CP200 Series natural
gas regulating capacities at selected inlet pressures,
outlet pressure settings and body outlet sizes. Flows
are in SCFH (60°F and 14.7 psia) and Nm³/h (0°C and

1.01325 bar) of 0.6 speci c gravity gas. To determine

(1)

PART NUMBER SPRING COLOR

(1)

PART NUMBER SPRING COLOR

SPRING WIRE DIAMETER SPRING FREE LENGTH

START-TO-DISCHARGE PRESSURE

RANGE ABOVE SETPOINT

For subcritical fl ow:

If pressure drops are lower than critical (absolute
outlet pressure greater than approximately one-half
the absolute inlet pressure), use the following formula
and convert according to the factors in the preceding
paragraph if necessary:

equivalent capacities for air, propane, butane, or
nitrogen, multiply the capacity number in the tables by
the following appropriate conversion factor: 0.775 for
air, 0.628 for propane, 0.548 for butane, or 0.789 for
nitrogen. For gases of other speci c gravities, multiply

Q =

520

GT

CgP1SIN DEG

3417

C

P

P

1

1

the given capacity by 0.775 and divide by the square
root of the appropriate speci c gravity.

where:

The published capacities were obtained using inlet
and outlet piping the same size as the regulator
body size.

Relief Sizing

For critical fl ow:

To determine wide-open  ow capacities for relief sizing
of 0.6 speci c gravity natural gas at 60°F at critical
pressure drops (absolute outlet pressure equal to
approximately one-half or less than one-half of the
absolute inlet pressure), use the following formula:

Q= P

8

1abs(Cg

)(1.29)

C

= Cg/Cv (see Table 3)

1

C

= Gas sizing coef cient (see Table 3)

g

G = Gas speci c gravity (air = 1.0)

P

= Regulator inlet pressure, psia

1

ΔP = Pressure drop across regulator, psig

Q = Gas  ow rate, SCFH

T = Absolute temperature of gas at inlet, °Rankine

Bulletin 71.1:CP200

Table 6. CP200 Series Flow Capacities for 1 psig / 69 mbar Setpoint

ACCURACY

SETPOINT + / - 1% ABS SET RANGE

1 psig -0.16 psi 0.16 psi 1 to 2 psig

69 mbar -11 mbar 11 mbar 69 mbar to 0.14 bar

CAPACITIES IN SCFH / Nm3/h OF 0.6 SPECIFIC GRAVITY NATURAL GAS

Inlet Pressure

psig bar Body Sizes: 3/4 and 1 NPT

3 0.21 160 4.2 310 8.3 460 12.3 850 22.8 1300 34.8

5 0.34 210 5.6 440 11.8 760 20.4 1200 32.2 1500 40.2
10 0.69 320 8.5 730 19.5 1100 29.5 2100 56.3 2100 56.3
15 1.0 410 11.0 890 23.8 1500 40.2 2500 67.1 2500 67.1
20 1.4 490 13.1 1000 26.8 1800 48.3 2800 75.1 2700 72.4
30 2.1 630 16.9 1400 37.5 2400 64.4 3000 80.5 2800 75.1
40 2.8 740 19.8 1700 45.6 2800 75.1 3000 80.5
50 3.4 920 24.6 2000 53.6 3100 83.2 3100 83.2
60 4.1 1000 26.8 2300 61.7 3300 88.5 3100 83.2
80 5.5 1300 34.8 3000 80.5 3300 88.5

100 6.9 1600 42.9 3100 83.2 3300 88.5
125 8.6 2000 53.6 3100 83.2 1300 34.8

psig bar Body Size: 1-1/4 NPT

3 0.21 160 4.2 310 8.3 460 12.3 850 22.8 1400 37.5

5 0.34 210 5.6 440 11.8 800 21.4 1600 42.9 2100 56.3
10 0.69 320 8.5 730 19.5 1300 34.8 2500 67.1 2800 75.1
15 1.0 410 11.0 890 23.8 1600 42.9 3000 80.5 3000 80.5
20 1.4 490 13.1 1000 26.8 1900 51.0 3000 80.5 3000 80.5
30 2.1 630 16.9 1400 37.5 2500 67.1 3000 80.5 3000 80.5
40 2.8 740 19.8 1700 45.6 3000 80.5 3000 80.5
50 3.4 920 24.6 2000 53.6 3200 85.9 3200 85.9
60 4.1 1000 26.8 2300 61.7 3200 85.9 3200 85.9
80 5.5 1300 34.8 3000 80.5 4200 11 3

100 6.9 1600 42.9 3300 88.5 4200 11 3

125 8.6 2000 53.6 3300 88.5 4200 11 3

Blank areas indicate where maximum operating inlet pressure for a given orice size is exceeded.
Shaded areas indicate values that are limited due to boost effects.

1/8 / 3.2 3/16 / 4.8 1/4 / 6.4 3/8 / 9.5 1/2 / 13

SCFH Nm

3

/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

PART NUMBER /

COLOR

GE30199X012 /

Yellow Stripe

Orice Size, Inch / mm

9