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Hybrid type Semiautomatic Medical Gas Manifold
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Description
HYBRID-type medical gas semi-automatic type manifold, indoor use only.
- Complies with NFPA99 standard.
- Complies with ASTM B819 code (oxygen-clean).
- Primary bank with Deward-type cylinders and secondary bank with high-pressure gas cylinders.
- Initial cylinder bank changeover occurs automatically by pressure differential with manual selector (lever) assigning primary and secondary banks for working cycles; subsequent changeovers are manual.
- Deward cylinder evaporators must function adequately under high oxygen demand to avoid manifold freezing due to inefficient liquid evaporation.
- Use of an external vaporizer with sufficient capacity must be implemented when Deward cylinder evaporators are insufficient.
- Operation and maintenance personnel must be certified to safely operate the equipment.
- The quality and purity grade of medical gases and the condition of cylinders and connections are always the supplier’s responsibility.
- Do not use oil or oil-derived products.
Specifications
🧱 Mounting Plate
- Indoor use only.
- Manufactured from galvanized carbon steel sheet, 18-gauge, with electrostatic paint finish.
- Manufactured from 18-gauge stainless steel sheet.
⚙️ Control System
- Operated via electronic PCB system with high-brightness LED indicators for operational states of the supply manifold.
- Check valves to control pressure differential between cylinder banks.
- High-pressure 4–20 mA transducers for primary and secondary banks.
📊 Visual Signals
- Displays states of USE – READY – EMPTY for each cylinder bank (primary and secondary).
🚨 Alarm Signals
- Located at the relay output port, indicating cylinder bank changeover.
🔁 Bypass System
- Two final-line low-pressure regulators
- Manual isolation via stainless steel ball valves
- Configuration: one in operation, one in reserve
🔒 Overpressure Relief and Venting System
- Interconnected relief valve circuit
- Venting directed outward from cabinet
🆘 Emergency Inlets
- DISS CGA V-5 coupling, according to system gas
- Located before final line regulators, for low pressure use only: 50–55 PSI.
📈 Pressure Gauges
- Analog type, for high- and low-pressure stages
🔗 Communication Systems
- 1 relay port for alarm signal output and connection to master signal panel indicating bank changeover.
🌬️ Flow Delivery
- Standard flow rate: 65 SCF/min
- For higher requirements, consult factory in advance
🧱 Cylinder Headers – Minimum Cylinder Pressure and Working Pressure
- Modular assembly design
- Manufactured from special extruded red brass tubing, SPS alloy 23000, temper H58 Drawn
- Conforms to ASTM B-43-98 and ASTM B-819 (oxygen-clean)
- CGA-type brass connection valves with automatic check (non-return) closure
- Manual master valve for open/close control of primary and secondary banks
- Natural brass finish (user or installer may paint or coat as preferred)
🧱 Deward Primary Header:
- Minimum Pressure: 230 PSI
- Maximum Pressure: 500 PSI
🧱 Gas Secondary Header:
- Working Pressure: 3,000 PSI
🔗 Cylinder Pigtails
- Oxygen: Flexible copper tubing, CGA 540 connection
- Other non-corrosive gases: Flexible PTFE hose with stainless steel mesh cover and safety line, CGA connection specific to each gas
🧪 Gas Compatibility
System available exclusively for high-pressure gas cylinders, compatible with the following gases:| Medical Gas | State | CGA Connection |
|---|---|---|
| Medical Oxygen | Gaseous with Deward cylinder evaporator | CGA 540 |
| Nitrogen | Gaseous with Deward cylinder evaporator | CGA 580 |
⚡ Electrical Requirements
- Power Supply: 100–220 V, 50–60 Hz
🔌 Recommended Network Wire
- Recommended wire: Belden STP (shielded twisted pair)
- Models: #8461ZH or #8208
⚠️ Conditions Affecting Operation
Avoid the following conditions to ensure proper equipment performance:- Voltage fluctuations in power supply
- Use of emergency generators as primary source
- Unstable or intermittent power supply
- Frequent power outages followed by repeated emergency generator activation
🛠️ Installation Recommendations
- Verify proper physical grounding of equipment
- Install an electrical backup system (No-Break) to prevent interruptions
- Incorporate surge protectors to protect against spikes and voltage fluctuations
📘 Installation, Operation and Maintenance Manual
The manual is protected and available exclusively for equipment of our brand. To request it, the user must send an email with the required data provided in the manuals and after-sales service section.Brochure
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