Description
Overview
The ControlAir Type 2000 CA2022/CA2023 Electro-Pneumatic Valve Positioners provide stable and accurate positioning of rotary and linear control valves in applications using sweet natural gas or methane as the pneumatic supply medium. Designed specifically for natural gas service, these models accept a standard 4-20 mA electrical input signal and convert it into pneumatic actuator control for precise valve positioning.
The force-balanced Type 2000 design provides reliable operation while simplifying calibration, maintenance, and field service. A high-gain pilot valve delivers quick and accurate valve and actuator response, while external zero adjustment simplifies calibration. The positioner is also designed to be insensitive to vibration, position, and shock for dependable performance in demanding industrial environments.
The CA2022 provides FM/CSA hazardous-area approvals for natural gas service, while the CA2023 provides ATEX intrinsically safe and flameproof approvals. Both models are specifically identified for use with methane or natural gas supply pressure media and can be configured for rotary or linear valve applications.
Key Features
- Electro-pneumatic valve positioning for natural gas service
- Suitable for sweet natural gas or methane supply pressure media
- Standard 4-20 mA electrical input signal
- Designed for rotary and linear control valves
- Stable and accurate valve positioning
- High-gain pilot valve provides quick and accurate valve/actuator response
- External zero adjustment simplifies calibration
- Force-balanced operating design
- Designed to be insensitive to vibration, position, and shock
- Supply pressure range from 21.8 to 100 psig (1.5 to 7 bar)
- Flow capacity up to 28.3 SCFM (800.1 Nl/min) at 87 psig supply
- NEMA 4X / IP65 aluminum enclosure with polyester epoxy finish
- CA2022 available with FM/CSA hazardous-area approvals
- CA2023 available with ATEX intrinsically safe and flameproof approvals
- Standard pointed position indicator for rotary configurations
- Standard blank cover for linear configurations
- Optional raised dome indicator
- Modular design supports multiple configurations and field conversions
The Type 2000 specification sheet specifically identifies CA2022/CA2023 as the Natural Gas versions of the Type 2000 electro-pneumatic valve positioner family.
Performance Characteristics
The CA2022/CA2023 use a 4-20 mA electrical input signal to control pneumatic output to the valve actuator while providing stable and repeatable positioning. These models are specifically configured for operation with sweet natural gas or methane rather than standard instrument air.
Published performance includes linearity error of less than 0.8% of full scale, hysteresis of less than 0.5% of full scale, and repeatability of less than 0.4% of full scale. The positioners operate with supply pressure from 21.8 to 100 psig (1.5 to 7 bar).
Performance Specifications
- Input Signal: 4-20 mA (Ri <500 ohms)
- Supply Pressure: 21.8-100 psig (1.5-7 bar)
- Linearity Error: <0.8% full scale
- Hysteresis: <0.5% full scale
- Repeatability: <0.4% full scale
- Flow Capacity @ 29 psig Supply: 9.5 SCFM (268.9 Nl/min)
- Flow Capacity @ 87 psig Supply: 28.3 SCFM (800.1 Nl/min)
- Air/Gas Consumption @ 29 psig: 0.18 SCFM (5.09 Nl/min)
- Air/Gas Consumption @ 87 psig: 0.53 SCFM
- Impedance: 500 ohms @ 70°F
- Loop Load: 9.5 VDC @ 20 mA
- Temperature Range: -40°F to 158°F (-40°C to 70°C)
- Pneumatic Ports: 1/4″ NPT
- Gauge Ports: 1/8″ NPT
- Electrical Connection: 1/2″ NPT or M20-1.5 depending on configuration
- Supply Media: Sweet natural gas or methane
- Enclosure: NEMA 4X / IP65 aluminum with polyester epoxy finish
- Weight: 6.0 lbs (2.7 kg)
How to Select the Right Configuration
Selecting between the CA2022 and CA2023 primarily depends on the hazardous-area approval required for the installation, followed by valve motion, mounting arrangement, indicator style, and electrical connection requirements.
Select the Appropriate Model
- CA2022: Electro-pneumatic natural gas positioner with FM/CSA hazardous-area approvals
- CA2023: Electro-pneumatic natural gas positioner with ATEX intrinsically safe and flameproof approvals
The Type 2000 ordering system specifically identifies CA2022 as E/P Electro-Pneumatic, FM/CSA XP, Natural Gas and CA2023 as E/P Electro-Pneumatic, ATEX Flame-proof, Natural Gas.
Select Rotary or Linear Motion
- R = Rotary
- L = Linear
Both valve motion styles are supported within the Type 2000 configuration system.
Select the Appropriate Indicator
- N = None, standard for linear configurations
- A = Arrow, standard for rotary configurations
- D = Dome indicator, optional
Select the Spindle and Cam
- Namur spindle for rotary applications
- Standard spindle for linear applications
- 3/8″ square spindle option
- 1/2″ square spindle option
- C1 = 90°/180° cam, standard rotary
- C2 = 45°/90° cam
- C3 = 30°/60° cam, standard linear
Electrical Connection
- CA2022: 1/2″ NPT conduit fitting
- CA2023: M20 x 1.5 conduit fitting
For additional guidance:
Applications
The CA2022/CA2023 are designed specifically for electro-pneumatic control valve positioning where sweet natural gas or methane is used as the pneumatic supply medium. They provide 4-20 mA valve positioning for rotary and linear pneumatic actuators while supporting hazardous-area requirements applicable to the selected model.
- Natural gas control valve positioning
- Methane service valve positioning
- Rotary pneumatic control valves
- Linear pneumatic control valves
- Natural gas process control systems
- Applications requiring electro-pneumatic control with natural gas supply pressure media
- Hazardous-area valve positioning with appropriate CA2022 or CA2023 approvals
The specification sheet limits the approved supply medium for these configurations to sweet natural gas or methane.
Models & Configurations
CA2022 – FM/CSA Natural Gas Electro-Pneumatic Valve Positioner
- 4-20 mA input
- Sweet natural gas or methane supply medium
- Rotary or linear configuration
- FM/CSA hazardous-area approvals
- 1/2″ NPT conduit fitting
The CA2022 is identified in the specification sheet as intrinsically safe and explosion-proof under its applicable FM/CSA approvals and is suitable for methane or natural gas supply pressure media.
CA2023 – ATEX Natural Gas Electro-Pneumatic Valve Positioner
- 4-20 mA input
- Sweet natural gas or methane supply medium
- Rotary or linear configuration
- ATEX intrinsically safe configuration
- ATEX flameproof configuration
- M20 x 1.5 conduit fitting
The CA2023 approvals listed in the specification sheet include II 1 G Ex ia IIB intrinsically safe and II 2 G Ex d IIB + H2 flameproof classifications.
Mounting Accessories
- Rotary Namur ISO-1 Bracket: P/N 449-542-032
- Rotary Namur ISO-2 Bracket: P/N 449-542-033
- Rotary Namur ISO-3 Bracket: P/N 449-542-034
- Rotary Namur ISO-4 Bracket: P/N 449-542-035
- Linear Universal Bracket: P/N 449-542-036
- Linear Namur IEC534 Bracket: P/N 449-542-037
Technical Resources
- Type 2000 Product Data Sheet
- Installation and Operating Instructions
- Dimensional Drawings
- Rotary and Linear Mounting Information
- FM/CSA Certifications
- ATEX Certifications
- Ordering Guide
FAQs
What are the Type 2000 CA2022/CA2023 used for?
The CA2022 and CA2023 are electro-pneumatic valve positioners designed for accurate positioning of rotary and linear pneumatic control valves using sweet natural gas or methane as the pneumatic supply medium.
What input signal do the CA2022/CA2023 use?
The CA2022 and CA2023 accept a standard 4-20 mA electrical input signal with input resistance of less than 500 ohms.
What is the difference between the CA2022 and CA2023?
The CA2022 is the FM/CSA natural gas configuration, while the CA2023 is the ATEX natural gas configuration with intrinsically safe and flameproof approvals.
What pneumatic media can be used with the CA2022/CA2023?
The Type 2000 specification sheet identifies sweet natural gas or methane as the supply pressure media for the CA2022 and CA2023.
Can the CA2022/CA2023 be used with rotary and linear valves?
Yes. Both models can be configured for rotary or linear valve positioning.
What supply pressure range do the CA2022/CA2023 support?
The CA2022 and CA2023 operate with supply pressures from 21.8 to 100 psig (1.5 to 7 bar).
How accurate are the CA2022/CA2023?
Published performance includes linearity error of less than 0.8% of full scale, hysteresis of less than 0.5% of full scale, and repeatability of less than 0.4% of full scale.
What is the maximum published flow capacity?
The CA2022/CA2023 provide 28.3 SCFM (800.1 Nl/min) at 87 psig (6 bar) supply pressure.
What enclosure rating is provided?
The Type 2000 uses a NEMA 4X / IP65 aluminum enclosure with a polyester epoxy finish.
What is the operating temperature range?
The CA2022/CA2023 operating temperature range is -40°F to 158°F (-40°C to 70°C).
