Description
Overview
The Type CG340 Low Emission Gas Regulator is engineered to provide precise pressure control while minimizing atmospheric emissions in natural gas and industrial gas applications. Designed specifically for fugitive emissions reduction programs, the CG340 delivers near-zero atmospheric leakage under both steady-state and dynamic operating conditions.
Unlike traditional instrument regulators, the Type CG340 is optimized for gas service where environmental compliance, methane emissions reduction, and process reliability are critical. Its compact, lightweight design supports installation in confined spaces while maintaining stable downstream pressure under varying flow rates and supply pressures.
Constructed from durable industrial-grade materials and designed for long service life, the CG340 provides reliable operation in demanding oil and gas production, pipeline, gas processing, and industrial process control applications where controlling emissions is an operational and regulatory priority.
Key Features
- Designed for low-emission gas control applications
- Near-zero atmospheric leakage
- Suitable for natural gas and inert gas service
- Precise pressure regulation under dynamic flow conditions
- Stable output pressure under varying supply pressures
- Compact, lightweight design
- Available in 1/4″ NPT and 1/2″ NPT port sizes
- Low-droop design with aspirator compensation
- Self-relieving operation
- Low gas consumption
- Tapped exhaust option available
- Panel mount option available
- Knob adjustment option available
- ATEX 2014/34/EU option available
- Designed to support fugitive emissions reduction initiatives
Performance Characteristics
- Port Sizes: 1/4″ NPT or 1/2″ NPT
- Gauge Ports: Two 1/4″ NPT ports
- Output Pressure Ranges: 0-30 psig, 0-60 psig, and 0-120 psig
- Maximum Supply Pressure: 250 psig (17 bar)
- Cv Value: 0.5 for 1/4″ NPT and 2.5 for 1/2″ NPT
- Exhaust Capacity: 0.1 scfm (2.83 Nl/min)
- Sensitivity: 1 inch water column
- Gas Consumption: Less than 0.1 scfh (0.05 Nl/min)
- Supply Pressure Effect: Less than 0.25 psig for 1/4″ NPT and less than 0.5 psig for 1/2″ NPT for a 25 psig supply pressure variation
- Operating Temperature: 0°F to 160°F (-18°C to 71°C)
- Operating Media: Air, inert gas, and sweet natural gas
- Weight: 1.15 lbs for 1/4″ NPT and 1.38 lbs for 1/2″ NPT
These performance characteristics make the Type CG340 well suited for low-emission gas systems requiring precise regulation, low leakage, and reliable operation in challenging industrial environments.
How to Select the Right Configuration
Selecting the correct Type CG340 configuration depends on flow requirements, outlet pressure range, installation requirements, venting needs, and emissions reduction objectives.
- Select 1/4″ NPT porting for standard instrument gas applications.
- Select 1/2″ NPT porting for higher-flow requirements.
- Choose the 0-30 psig range for low-pressure instrumentation applications.
- Select the 0-60 psig range for general gas control applications.
- Choose the 0-120 psig range for higher-pressure gas systems.
- Select the tapped exhaust option when captured venting is required.
- Choose the knob adjustment option when convenient field adjustment is important.
- Select panel mounting for enclosure or control panel installations.
- Choose the ATEX option for hazardous-area applications.
- Use the CG340 when emissions reduction and environmental compliance are project priorities.
For additional guidance:
Applications
The Type CG340 is designed for low-emission gas pressure regulation applications where environmental compliance and precise control are critical.
- Natural gas instrumentation systems
- Methane emissions reduction programs
- Fugitive emissions compliance projects
- Oil and gas production facilities
- Pipeline control systems
- Gas transmission stations
- Gas processing facilities
- Valve positioners and controllers
- Pneumatic actuators
- Industrial process control systems
- Remote field instrumentation
Models & Configurations
Type CG340 Ordering Structure
CG340 – [Port Size] [Range] [Options]
Port Sizes
- B = 1/4″ NPT
- D = 1/2″ NPT
Pressure Ranges
- A = 0-30 psig (0-2 bar)
- B = 0-60 psig (0-4 bar)
- C = 0-120 psig (0-8 bar)
Available Options
- E = Tapped Exhaust
- K = Knob with Stainless Steel Stem
- P = Panel Mount
- X = ATEX 2014/34/EU
Accessories
- Mounting Bracket: P/N 446-707-028
- 0-15 psi Gauge: P/N 446-725-003
- 0-30 psi Gauge: P/N 446-725-004
- 0-60 psi Gauge: P/N 446-725-001
- 0-160 psi Gauge: P/N 446-725-002
Technical Resources
FAQs
What makes the Type CG340 different from a standard pressure regulator?
The Type CG340 is specifically engineered for low-emission gas applications and provides near-zero atmospheric leakage while maintaining precise pressure control.
What gases can the Type CG340 regulate?
The CG340 is designed for air, inert gases, and sweet natural gas applications.
Does the Type CG340 include filtration?
No. The CG340 is a pressure regulator only. For integrated filtration and pressure regulation, consider the Type CG330 Low Emission Gas Filter Regulator.
What pressure ranges are available?
The Type CG340 is available in 0-30 psig, 0-60 psig, and 0-120 psig output pressure ranges.
Why is the Type CG340 used in emissions reduction projects?
The CG340 is designed to minimize atmospheric leakage, helping operators reduce fugitive emissions and support environmental compliance initiatives.
