Editorial Technical Reference

Gas Cylinder/Generator

This page explains how Gas Cylinder/Generator is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

The Gas Cylinder/Generator is a component within a Carrier Gas Supply System, responsible for providing a stable, pure source of carrier gas—such as helium, hydrogen, or nitrogen—that transports samples through chromatographic or other analytical systems.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Gas Cylinder/Generator

Definition
The Gas Cylinder/Generator is a component within a Carrier Gas Supply System, responsible for providing a stable, pure source of carrier gas—such as helium, hydrogen, or nitrogen—that transports samples through chromatographic or other analytical systems. Cylinders store compressed gas under high pressure, while generators produce gas on-demand through processes like electrolysis (for hydrogen) or pressure swing adsorption (for nitrogen). This directory entry covers both types, offering reference parameters for selection and integration. Key specifications include output flow rates up to 500 mL/min, output purity from 99.999% to 99.9999%, and output pressure up to 0.7 MPa. Operating temperature ranges from 5 to 40 °C, with humidity limits of 10–90% RH (non-condensing). Power supply is 220 V AC ±10% (50/60 Hz), with power consumption between 100 and 300 W depending on generator type. For cylinders, storage capacity is 40–50 L, with dimensions per ISO 9809: diameter 140–230 mm, height 800–1500 mm, and empty weight 50–80 kg for steel. Pressure regulators handle maximum inlet pressures of 15–20 MPa. Leak rate is less than 0.1 mL/min (helium leak test), and noise level is below 50 dB(A) at 1 m. Materials include stainless steel, aluminum alloy, and carbon fiber composite. These values are reference ranges; verify model-specific data with the manufacturer or supplier. The component interfaces with analytical instruments via pressure regulators and flow controllers, and requires proper ventilation and safety handling for high-pressure gases. Maintenance signals include pressure drops, purity deviations, or leak alarms. Failure boundaries include overpressure, contamination, or mechanical wear. Always confirm compliance with applicable standards and safety regulations.
Working Principle
Gas cylinders store pre-compressed gas under high pressure, regulated through valves and pressure reducers. Gas generators typically use electrolysis (for hydrogen) to split water into hydrogen and oxygen, or pressure swing adsorption (for nitrogen) to separate nitrogen from compressed air using molecular sieves. The output is then delivered to the analytical system at controlled flow and pressure.
Common Materials
Stainless steel, Aluminum alloy, Carbon fiber composite
Technical Parameters
ParameterTypical rangeNotes & selection driver
Output Flow Rate0–500 mL/minFor GC carrier gas applications
Output Purity99.999–99.9999 %For high-purity analytical use
Output Pressure0–0.7 MPaAdjustable for instrument requirements
Operating Temperature5–40 °CAmbient conditions for reliable operation
Power Supply220 ±10% V AC50/60 Hz
Power Consumption100–300 WDepends on generator type
Gas Storage Capacity40–50 LFor gas cylinders
Cylinder Diameter140–230 mmStandard steel cylinder dimensionsISO 9809
Cylinder Height800–1500 mmVaries with capacityISO 9809
Cylinder Weight50–80 kgEmpty weight for steel cylinders
Max Inlet Pressure15–20 MPaFor pressure regulators
Leak Rate<0.1 mL/minHelium leak test
Noise Level<50 dB(A)At 1 m distance
Humidity Range10–90 % RHNon-condensing

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Pressure Regulator
    Controls and reduces gas pressure to safe operating levels
    Material: Brass or stainless steel
  • Safety Valve
    Prevents over-pressurization by releasing excess gas
    Material: Stainless steel
  • Gas Outlet Connection Part
    Interface for connecting to the carrier gas supply line
    Material: Stainless steel
  • Gas Cylinder Optional
    The bottle itself on cylinder builds — it holds the compressed gas the regulator meters out.
  • Electrolysis Gas Generator Optional
    Splits water to make hydrogen on generator builds, so no bottle is needed.
  • Molecular Sieves Optional
    Adsorb oxygen out of compressed air so nitrogen passes on PSA builds.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Gas Cylinder/Generator.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
purity: 99.999% minimum for carrier gas applications
pressure: Up to 300 bar (storage cylinders), 0-10 bar (generator output)
flow rate: 0.1-10 L/min (typical analytical instrument range)
temperature: -20°C to +50°C (operating), -40°C to +70°C (storage)
Media Compatibility
✓ High-purity nitrogen ✓ Helium carrier gas ✓ Zero air for detectors
Unsuitable: Corrosive or reactive gases (e.g., chlorine, ammonia)
Sizing Data Required
  • Required flow rate (L/min)
  • Maximum operating pressure (bar)
  • Daily/continuous usage hours

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Valve seat leakage
Cause: Wear from repeated cycling, contamination ingress, or improper seating due to thermal expansion mismatches between valve materials and cylinder body.
Pressure vessel fatigue cracking
Cause: Cyclic pressure loading from repeated filling/emptying, stress concentrations at weld seams or transitions, and corrosion-assisted crack initiation.
Maintenance Indicators
  • Hissing or whistling audible leak from valve or fittings during operation
  • Visible corrosion, bulging, or discoloration on cylinder surface indicating material degradation
Engineering Tips
  • Implement regular ultrasonic thickness testing and hydrostatic testing per regulatory schedules to detect wall thinning and verify structural integrity.
  • Use filtered, dry gas sources and install particulate filters upstream to prevent contamination that accelerates valve wear and internal corrosion.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 11114-1:2020 (Transportable gas cylinders - Compatibility of cylinder and valve materials with gas contents) ANSI/CGA V-1:2021 (American National Standard for Compressed Gas Cylinder Valve Outlet and Inlet Connections) DIN EN 1964-1:2019 (Transportable gas cylinders - Specification for the design and construction of refillable transportable seamless steel gas cylinders of water capacities from 0.5 litre up to and including 150 litres)

Quoted from the published standard.

Manufacturing Precision
  • Wall thickness: +/-0.1mm
  • Cylinder diameter: +/-0.5mm
Quality Inspection
  • Hydrostatic pressure test
  • Ultrasonic thickness testing

Manufacturers of Gas Cylinder/Generator

3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Guangsheng Technology Wuxi
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Ningbo Drift Hydraulic Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Shanghai Metal Corporation
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

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Frequently Asked Questions

What is the difference between a gas cylinder and a gas generator?

A gas cylinder stores pre-compressed gas under high pressure, while a gas generator produces gas on-demand through processes like electrolysis or pressure swing adsorption. Cylinders require refilling, whereas generators need a power supply and sometimes a water source.

What purity levels are typical for carrier gas?

For high-purity analytical use, output purity ranges from 99.999% to 99.9999%. The required purity depends on the application and instrument specifications.

What safety considerations apply to gas cylinders?

Gas cylinders contain high-pressure gas and must be handled with care. They should be secured upright, stored in well-ventilated areas, and connected with appropriate regulators. Regular leak checks are recommended.

How do I choose between a cylinder and a generator?

Consider factors such as gas type, required purity and flow rate, frequency of use, space, and operational costs. Generators offer on-demand supply and eliminate cylinder handling, but may have higher initial investment.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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