Gas Cylinder Manifold System

A gas cylinder manifold system is a modular equipment that integrates multiple high-pressure gas cylinders into a unified frame. It enables centralized storage, transportation, and distribution of gases through a pipeline system. Its core function is to enhance the safety, efficiency, and flexibility of gas supply, and it is widely used in industrial, medical, energy, and other fields. The following is a product introduction based on the latest national standards and industry practices:

I. Core Structure and Design

Components

Cylinder Module: Adopts seamless steel cylinders complying with standards such as GB/T 5099.1 and GB/T 5099.3. The maximum volume of a single cylinder can reach 450L, with a total volume not exceeding 3000L.

Frame System: Made of high-strength alloy steel or composite materials, featuring impact resistance and corrosion resistance. According to the new national standard, the frame must pass a load test (2 times the total mass load) and vertical/rotational drop tests to ensure transportation stability.

Pipelines and Valves: Constructed with stainless steel or copper tubes. Welds require 100% non-destructive testing (e.g., radiographic testing, with a qualification****** not lower than Grade Ⅱ), and must pass a hydrostatic test (pressure ≥ the hydrostatic test pressure of the cylinder) and a 10-minute airtightness test.

Safety Accessories: Equipped with full-lift spring safety valves (for liquefied gases), anti-vibration pressure gauges, emergency shut-off valves, etc. The set pressure of the safety valve is 75%-100% of the cylinder's hydrostatic test pressure.

Modular Design

Supports flexible combination of cylinder quantities (e.g., 12-cylinder group, 16-cylinder group). The frame size can be adjusted according to requirements. Some models adopt sliding placement plates and V-shaped clamping grooves to improve the fixing stability of cylinders with different quantities.

II. Application Scope and Media

Application Fields

Industrial Scenarios: Iron and steel smelting (centralized oxygen supply), chemical production (nitrogen/argon protection), semiconductor manufacturing (high-purity gas delivery).

Medical Field: Centralized oxygen supply systems in hospitals, mobile medical equipment (e.g., emergency oxygen supply in mobile cabin hospitals).

New Energy Field: Hydrogen storage and transportation (35MPa/70MPa high-pressure hydrogen storage cylinder groups), hydrogen storage modules in hydrogen refueling stations.

Other Scenarios: Laboratory gas supply, urban gas peak shaving (CNG manifold systems).

Filling Media

Covers compressed gases (e.g., oxygen, nitrogen), low-pressure liquefied gases (e.g., carbon dioxide), and mixed gases, but is not suitable for highly toxic media. When filling toxic gases, the total volume must be ≤ 800L.

III. Safety Standards and Certifications

National Standards

Implements GB/T 28054-2023 Seamless Steel Cylinder Manifold Systems, which integrates the requirements of TSG 23-2021 Gas Cylinder Safety Technical Regulations. It specifies a design service life of 20 years, a side inclination angle ≥ 12°, and enhances material traceability (e.g., pressure-bearing components must be marked with traceable codes).

Welding processes must comply with GB/T 20801.4. Materials shall use low-alloy high-strength steel with a yield strength ≥ 490MPa, and pass a -40℃ impact test (impact energy ≥ 47J).

International Alignment

Refers to ISO 10961:2019, introducing vertical drop (1.2m height) and rotational drop (0.8m height) tests to verify the welding stability of the frame.

IV. Technical Advantages and Industry Trends

Core Advantages

Safety and Reliability: Full-life cycle safety management (design-production-use-scrapping). Realizes preventive maintenance through FMEA (Failure Mode and Effects Analysis) risk assessment and intelligent monitoring systems (e.g., pressure sensors, leakage alarms).

Efficiency and Economy: Reduces single-cylinder transportation costs and improves gas turnover rate. For example, the single transportation capacity of hydrogen manifold systems is increased by more than 30% compared with traditional methods.

Eco-friendliness: Lightweight design (application of composite materials, with composite material proportion ≤ 15%) reduces energy consumption, in line with the "dual carbon" goals.

Industry Trends

Intelligent Upgrading: Integrates IoT modules to support remote monitoring, pressure adjustment, and data traceability. The market share of intelligent manifold systems is expected to reach 28% by 2025.

Breakthroughs in Hydrogen Field: Localization of 35MPa/70MPa high-pressure hydrogen storage cylinder groups is accelerating. The market scale is expected to exceed 4 billion yuan by 2025, becoming a core equipment for hydrogen storage and transportation.

Modular Integration: Adopts the design of "integrated key parts + modular non-key parts", improving assembly efficiency by 40% and extending vibration fatigue life by 2 times.

V. Typical Application Cases

Industrial Gas Supply: Baosteel Group (Shanghai) uses oxygen manifold systems to realize continuous oxygen supply for steelmaking, achieving significant efficiency improvement.

Medical Emergency Support: During the COVID-19 pandemic, multiple mobile cabin hospitals used oxygen manifold systems to quickly deploy temporary oxygen supply systems.

Hydrogen Storage and Transportation: A vehicle manufacturer's hydrogen energy project adopted composite material manifold systems, reducing weight by 12% while increasing impact resistance by 15%.

VI. Selection Recommendations

Key Selection Points

Medium Compatibility: Select pipeline materials according to gas properties (e.g., stainless steel is suitable for corrosive gases).

Application Scenarios: Prioritize horizontal frames for fixed scenarios; recommend lightweight designs for mobile transportation.

As a core equipment for modern industrial gas storage and transportation, gas cylinder manifold systems are playing a key role in emerging fields such as hydrogen energy and high-end manufacturing through technological iteration and policy-driven development. Their design and application must strictly comply with the latest standards and integrate intelligent management to achieve a safe, efficient, and green gas supply chain.