Heavy-Duty Dissolved Acetylene Cylinders for Industrial Gas Distribution & Heavy Fabrication
Industrial-grade, large-capacity dissolved acetylene cylinders engineered for high-demand welding, cutting, and thermal processing. Built with deep-drawn low-carbon steel plates and monolithic porous calcium silicate mass, these cylinders ensure stable, safe, and regulated release of acetylene gas for high-volume operations.
Designed for gas distributors, industrial supply wholesalers, and heavy manufacturing plants requiring strict compliance with international pressure vessel codes.
Technical Specifications & Model Selection
Selecting the correct cylinder requires balancing gas volume, handling weight, and regulatory thread standards. Review the standard configuration parameters below.
|
Model |
Water Capacity (L) |
Acetylene Capacity (cubic meters) |
Tare Weight (kg) |
Shell Diameter (mm) |
Height (mm) |
Thread Type |
|
DAC-40 |
40.0 |
7.2 |
48.0 |
250 |
1020 |
CGA 510 / POL |
|
DAC-50 |
50.0 |
9.0 |
58.0 |
250 |
1250 |
CGA 510 / POL |
|
DAC-60 |
60.0 |
11.0 |
68.0 |
320 |
1150 |
CGA 510 / DIN 477 |
Critical Application Environments
These large-capacity cylinders serve heavy industrial operations demanding continuous, high-flow acetylene supply:
Shipbuilding & Offshore Fabrication: Continuous heavy plate cutting and thermal straightening where low gas pressure drop over time is critical.
Large-Scale Steel Construction: Structural beam fabrication requiring extended duty cycles for oxy-fuel torches.
Industrial Gas Bottling Plants: Bulk filling operations requiring uniform porous mass absorption rates and consistent tare weights for accurate solvent (acetone) management.
Manufacturing & Quality Assurance Standards
Safety in acetylene containment relies on strict metallurgical control and precise internal mass formulation.
Shell Material: Formed from HP295 or SG295 low-carbon killed steel plates, offering high tensile strength and impact resistance under varying ambient conditions.
Welding Process: Automatic submerged arc welding (SAW) used for longitudinal and circumferential seams, backed by 100% radiographic testing (RT) on all critical joints to eliminate micro-fissures.
Porous Mass Structure: Monolithic calcium silicate insulation matrix infused with controlled porosity (90% to 92%) to safely dissolve acetylene in acetone without void pockets.
Surface Treatment: Shot-blasted exterior finished with heat-resistant, anti-corrosive powder coating, heat-cured at 200 degrees Celsius for marine and harsh industrial environments.
Mandatory Certifications & Compliance
Each production batch undergoes rigorous third-party verification prior to shipment to ensure seamless import clearance and local regulatory compliance.
Design & Manufacturing Standard: ISO 3807 (Acetylene cylinders - Basic requirements and type testing).
Pressure Vessel Compliance: DOT-8 / DOT-8AL (North American market) or TPED / EN 180 / ISO 9809 equivalents (European market).
Traceability Documentation: Material Test Reports (MTRs) provided per heat number; hydraulic proof pressure test, burst test, and porous mass shrinkage test documentation supplied with every commercial shipment.
Supplier Evaluation & Procurement Criteria
When auditing cylinder manufacturers for long-term supply agreements, technical buyers should verify:
Mass Uniformity: Does the factory control calcium silicate drying curves to prevent internal cracking or settling during transit?
Solvent Control: Are acetone saturation levels precisely weighed before final valve torque sealing?
Traceability: Are cylinder serial numbers, tare weights, and manufacturing dates permanently cold-stamped on the steel neck ring or collar?
Frequently Asked Questions
Q: What is the maximum safe withdrawal rate for these large-capacity cylinders?
A: To prevent acetone carryover into the gas line, the continuous withdrawal rate of acetylene should not exceed 1/10th of the cylinder's total gas capacity per hour (or 1/5th for intermittent use). Drawing gas faster than this risks damaging downstream equipment and depleting the solvent.
Q: How is the acetone solvent ratio managed during production?
A: The acetone content is calibrated based on the total water capacity and the specific porosity index of the calcium silicate mass. Every cylinder is weighed empty, measured for porous mass weight, saturated with verified-purity acetone, and re-weighed to maintain strict tolerance limits.
Q: What is the re-test interval for dissolved acetylene cylinders?
A: Under most regional safety jurisdictions (such as DOT or TPED regulations), acetylene cylinders require periodic external visual inspection and re-qualification every 5 to 10 years, depending on operating conditions and local statutory requirements.
Q: Can you accommodate custom valve inlets and color-coding for regional markets?
A: Yes. We supply cylinders equipped with country-specific valves (CGA, DIN, BS, JIS) and apply custom exterior paint colors, stenciled warning labels, and barcoded traceability tags per distributor requirements.
Request Technical Documentation & Commercial Quotation
To review batch-specific Material Test Reports (MTRs), compliance certificates (DOT/TPED/ISO 3807), or discuss OEM private-label requirements for your distribution network, connect with our engineering team:
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