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CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators

CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators

Product catalog summary

Introduction
The CP400 Series pressure loaded regulators are designed for pressure-reducing applications in light industrial and commercial settings. They offer flexibility with various body sizes, materials, and pressure settings, and can be configured for internal or external pressure registration. The series also provides several overpressure protection options.

Features and Benefits

Variety of body sizes and end connections.
Fixed Factor/Pressure Factor Measurement (PFM) accuracy.
Field convertible for wide-open monitor construction.
Multiple overpressure protection options.
Available in gray cast iron, ductile iron, and steel.
Easy maintenance with standard tools.

Overpressure Protection Options

Token Relief: Provides minor overpressure relief.
True-Monitor™ Protection: Acts as a secondary regulator in case of primary failure.
Slam-Shut Protection: Shuts off gas in overpressure or underpressure conditions.

Specifications

Available configurations include internal and external pressure registration with or without relief options.
Body materials include gray cast iron, ductile iron, and steel.
Temperature capabilities range from -20°F to 150°F (-29°C to 66°C).
Construction materials include aluminum, steel, and nitrile (NBR).

Principle of Operation
The CP400 Series operates with a spring-to-close mechanism. The 67CP Series loading pressure regulator supplies loading pressure to the main diaphragm, controlling downstream pressure. Adjustments are made to the loading pressure regulator to meet demand changes.

Flow Capacities and Pressure Ratings

Inlet pressure ratings and flow coefficients are detailed in tables.
Maximum outlet pressures and outlet pressure ranges are specified for different configurations.

Additional Information
The document includes detailed tables and figures illustrating configurations, pressure ratings, and operational schematics for various CP400 models, including CP403 and CP404 with integral monitor and slam-shut modules.

Overview
The document provides detailed technical specifications and operational guidelines for the CP400 Series regulators and the Type VSX4 slam-shut module. It includes information on installation, pressure protection, and flow capacities.

Specifications
The Type VSX4 slam-shut module offers overpressure (OPSO) and underpressure (UPSO) protection by shutting off gas flow to the downstream system. It operates independently of the Type CP404 regulator and inlet pressure variations. The module can be configured for internal or external downstream pressure registration, with external registration requiring a sensing line.

Installation Guidelines
The CP400 Series regulators can be installed in any position, but specific components like the spring case vent should be oriented downward. If vented gas poses a hazard, it must be piped to a safe location using obstruction-free tubing.

Overpressure Protection
The CP400 Series regulators require additional pressure relieving or limiting devices if the inlet pressure exceeds the outlet pressure rating. The document specifies that these regulators do not have standard internal relief or high outlet pressure shutoff.

Token Relief and True-Monitor Protection
Types with a "T" in the type number offer token relief for minor overpressure. The Integral True-Monitor combines two-regulator operations into one body, providing protection from various failures that could affect the primary regulator.

Pressure Registration
The Integral True-Monitor offers internal and external pressure registration options, depending on the primary regulator's registration method.

Flow Capacities
The document includes tables detailing the natural gas regulating capacities of the CP400 Series at various inlet pressures, outlet pressure settings, and body outlet sizes. It provides conversion factors for different gases and formulas for determining flow capacities under critical and subcritical conditions.

Relief Sizing
Guidelines for determining relief valve capacity are provided, including formulas for critical and subcritical flow conditions.

Specifications
The document provides detailed specifications for the CP400 series regulators, including body sizes, materials, and end connection styles. It covers various types of regulators such as those with internal and external registration, integral True-Monitor protection, and slam-shut modules. The document specifies outlet pressure ranges, orifice sizes, and body orientations.

Procedures
The document outlines the ordering process for different types of regulators, specifying the selection of body size, material, end connection, outlet pressure range, orifice size, and body orientation. It also includes a specification worksheet to assist in determining the appropriate regulator for specific applications.

Standards and Recommendations
The document emphasizes the importance of selecting the correct regulator type and configuration based on application requirements. It highlights the need for overpressure protection and provides options such as relief valves, monitor regulators, and shutoff devices.

Key Data and Figures
The document includes tables and figures illustrating flow capacities, vent and body orientations, and dimensions for various regulator types. It provides flow capacities in SCFH/Nm3/h for different inlet pressures and orifice sizes.

Critical Information
Blank areas in the tables indicate where maximum operating inlet pressure is exceeded, while light and dark gray areas show limited capacities due to boost effects and droop exceedance, respectively. The document also includes contact information for Emerson Process Management's global offices.

Catalog excerpts

CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators-1

CP400 Series Commercial / Industrial Pressure Loaded Pressure Reducing Regulators TYPICAL CP403 REGULATOR WITH INTEGRAL TRUE-MONITORTM PROTECTION TYPICAL CP404 REGULATOR WITH INTEGRAL SLAM-SHUT MODULE Figure 1. CP400 Series Pressure Loaded Pressure Reducing Regulator Features and Benefits • Wide Variety of Body Sizes and End Connections • Fixed Factor / Pressure Factor Measurement (PFM) Accuracy Capabilities • Field Convertible from Internal Sensing for Wide-Open Monitor Construction • Available in Gray Cast Iron, Ductile Iron, and Steel Body Materials • Only Standard Tools Required for Pressure Adjustment and Orifice Removal • Easy to Maintain • Multiple Overpressure Protection Options

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CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators-2

TYPE 67CP PRESSURE LOADING REGULATOR CLOSING SPRING DIAPHRAGM HEAD DIAPHRAGM LOWER CASING VALVE STEM P1562 EXTERNAL CONTROL LINE PLUG (DO NOT REMOVE IF UNIT IS PRESSURIZED) VALVE DISK Figure 2. Typical CP400 Regulator Cut-away View Introduction The CP400 Series pressure loaded regulators have been engineered to fit a multitude of pressure-reducing applications including light industrial and commercial installations, which include accurate control for use in pressure-factor measurement (fixed factor billing) applications. This flexibility is provided by the numerous body end connection sizes,...

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CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators-3

Bulletin 71.1:CP400 Specifications Available Configurations CP400IN: Type CP400 with Type INTERNAL pressure registration and NON-RELIEVING construction CP400IT: Type CP400 with INTERNAL Type pressure registration and TOKEN relief CP400EN: Type CP400 with Type EXTERNAL pressure registration and NON-RELIEVING construction Type CP400ET: Type CP400 with EXTERNAL pressure registration and with TOKEN relief Type CP403IN: Type CP400IN with integral TRUE-MONITORTM Protection CP403IT: Type CP400IT with integral Type TRUE-MONITOR Protection CP403EN: Type CP400EN with integral Type TRUE-MONITOR Protection...

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CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators-4

Bulletin 71.1:CP400 Specifications (continued) Approximate Weights With threaded body Type CP400: 11 pounds / 5 kg Type CP403: 20.5 pounds / 9 kg Type CP404: 13.2 pounds / 6 kg Approximate Weights (continued) Add 8.6 pounds / 4 kg to weights listed with flanged body Designed, Tested, and Evaluated Consistent With: ASME B16, ASME Section VIII DIV I, ASTM B117 (Corrosion Resistance) TYPE NUMBER Overpressure Protection Module Without Overpressure Protection Module With Integral Monitor Module(1) With Slam-shut Module(2) Pressure Registration External Registration Internal Registration Relief Non-Relief...

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CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators-5

Type CP400IT Pressure Loaded Regulator with Token Relief TYPE 67CP PRESSURE LOADING REGULATOR CONTROL SPRING CLOSING SPRING VALVE DISK inlet pressure INLET PRESSURE INLET PRESSURE Outlet pressure OUTLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE atmospheric pressure ATMOSPHERIC PRESSURE LOADING PRESSURE loading pressure MAIN REGULATOR LEVER VALVE STEM EXTERNAL CONTROL LINE PLUG (DO NOT REMOVE IF UNIT IS PRESSURIZED) LOADING PRESSURE Figure 4. Type CP400IN Pressure Loaded Regulator with Internal Pressure Registration Operational Schematic Table 4. Outlet Pressure Ranges types CP400, CP403(2),...

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CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators-6

Type CP400ET Pressure Loaded Regulator with Token Re Bulletin 71.1:CP400 TYPE 67CPR PRESSURE LOADING REGULATOR CONTROL SPRING CLOSING SPRING VALVE DISK 3/4 NPT CONTROL LINE CONNECTION VALVE STEM inlet pressure INLET PRESSURE Outlet pressure OUTLET PRESSURE atmospheric pressure ATMOSPHERIC PRESSURE loading pressure LOADING PRESSURE Figure 5. Type CP400ET Pressure Loaded Regulator with External Pressure Registration Operational Schematic main disk against the orifice seating surface. At this point the loading regulator will continue to supply a small amount of gas downstream that is equal to the...

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CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators-7

Bulletin 71.1:CP400 TYPE 67CPR PRESSURE LOADING REGULATOR ADJUSTING SCREW CONTROL SPRING MONITOR LEVER GUIDED STEM OPENING SPRING MONITOR DISK VALVE STEM EXTERNAL CONTROL LINE PLUG (DO NOT REMOVE IF UNIT IS PRESSURIZED) WIDE-OPEN INTEGRAL MONITOR REGULATOR PRIMARY REGULATOR inlet pressure outlet pressure atmospheric pressure loading pressure Figure 6. Type CP403IT Pressure Loaded Regulator with True-Monitor™ and Internal Pressure Registration Operational Schematic Table 5. CP403 Series Spring Ranges (Without Token Relief) primary regulator types Typical Setpoint psig Spring Range Spring Range...

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CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators-8

Bulletin 71.1:CP400 TYPE 67CP LOADING REGULATOR TYPE VSX4 SLAM-SHUT MODULE EXTERNAL CONTROL LINE PLUG (DO NOT REMOVE IF UNIT IS PRESSURIZED) inlet pressure outlet pressure atmospheric pressure loading pressure MAIN REGULATOR Figure 7. Type CP404IN Pressure Loaded Regulator with Slam-Shut Module and Internal Pressure Registration Operational Schematic Type CP404 Slam-Shut Operation The Type VSX4 slam-shut module on the Type CP404 regulator is a fast acting shutoff device that provides overpressure (OPSO) or over and underpressure (OPSO/UPSO) protection by completely shutting off the flow of gas...

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CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators-9

Bulletin 71.1:CP400 Table 7. CP404 Series Regulator and Slam-Shut Spring Ranges Overpressure Shutoff (OPSO) Only REGULATOR TYPES Typical Setpoint psig Overpressure Shutoff (OPSO) Typical Setpoint 5 Spring Part Number Spring Range 1. Token Relief is not available with the 10 to 20 psig / 0.69 to 1.4 bar spring range. Table 8. CP404 Series Regulator and Slam-Shut Spring Ranges Overpressure and Underpressure Shutoff (OPSO and UPSO) REGULATOR TYPES Typical Setpoint psig Spring Part Number Spring Range Spring Part Number Spring Range Underpressure Shutoff (UPSO) Typical Setpoint Typical Setpoint...

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CP400 Series Commercial / Industrial Pressure-Loaded Pressure Reducing Regulators-10

Bulletin 71.1:CP400 Table 9. Type CP403 Overpressure Protection Benefits vs. Additional Seat Protection CP403 Series TRUE-MONITORTM PROTECTION ADDITIONAL SEAT PROTECTION Damage or disconnected lever Blocked or broken registration to Primary regulator(1) 1. or external pressure registered units, in order to gain True-Monitor Protection in the case of damaged or broken sense line, it is required that the Primary and Integral Wide-Open F Monitor do not share downstream sense lines. Table 10. Token Relief Valve Start-to-Discharge Pressure Above Setpoint SETPOINT(1) SPRING COLOR SPRING PART NUMBER...

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