Product Description
221L 3-Gas Calibration Gas for CO, CO₂, and CH₄ (LEL) Detection
This 221L calibration gas cylinder is designed for high-volume calibration of detectors measuring Carbon Monoxide (CO), Carbon Dioxide (CO₂), and Methane (CH₄). With Nitrogen balance, this mixture provides stable and repeatable performance for combustible and toxic gas monitoring applications where oxygen calibration is performed separately.
221L Calibration Gas Cylinder Specifications – Low Pressure Disposable
- Cylinder Size: 221L
- Cylinder Pressure: 250 PSI
- Cylinder Volume: 7.5 Cubic Feet
- Valve Type: CGA-165
- Cylinder Material: Steel
- Cylinder Type: Disposable
- Gas Reactivity: Non-Reactive
- Blend Type: Custom Mix
Applications for Large-Volume Calibration Workflows
- Calibration of multiple detectors in centralized programs
- Methane LEL sensor validation at scale
- Carbon monoxide and CO₂ monitoring calibration
- Facility-wide safety and compliance testing
- Extended-use calibration cycles with reduced cylinder swaps
Why This 221L Low-Pressure Cylinder is Unique
Unlike high-pressure cylinders, this 250 PSI format allows more controlled gas release, making it ideal for steady calibration workflows and reduced regulator strain. The larger volume ensures extended usability while maintaining manageable handling compared to bulk cylinders.
Custom Calibration Gas Options
We offer custom calibration gas mixtures, cylinder sizes, and valve configurations to match your equipment and operational requirements.
