Central Oxygen Supply Unit | Technical Product Specification & Sourcing Guide
The Central Oxygen Supply Unit regulates and delivers medical-grade oxygen from primary sources (such as liquid oxygen storage or high-pressure cylinder manifolds) to hospital distribution pipelines. It features an automatic dual-train switchover mechanism to maintain stable pipeline pressure during source depletion or routine maintenance.
Technical Specifications
|
Parameter |
Specification Range |
Unit / Standard |
|
Max Flow Rate |
50 – 500+ |
m3/h (scalable per facility size) |
|
Output Pressure |
0.4 – 0.8 (adjustable) |
MPa |
|
Pressure Stability |
+/- 0.02 |
MPa |
|
Switchover Mode |
Pneumatic automatic / Electronic solenoid |
Dual-train redundant |
|
Input Source |
Liquid Oxygen (LOX) / Cylinder Manifold |
Multi-source compatible |
|
Control System |
PLC with 7-inch HMI touchscreen |
Modbus / RS485 / BACnet output |
|
Power Supply |
AC 100-250V, 50/60Hz |
With UPS backup interface |
Key Features
Dual-Train Redundancy: Two independent pressure-reduction lines operate alternately. When the active line drops below the threshold, the standby line engages automatically without pressure drops.
Integrated Alarm Interface: Potential-free dry contacts connect directly to central nursing stations (BMS/Alarm systems) for pressure anomaly alerts.
Degreased Copper/Brass Pipeline: Oxygen-contact components undergo ultrasonic degreasing and acid passivation to eliminate hydrocarbon contamination.
Modular Steel Framework: Floor or wall-mounted structural skids allow straightforward mechanical room integration.
Applications
Operating Theaters (OT): Delivers regulated oxygen for anesthesia machines and surgical ventilators.
Intensive Care Units (ICU / NICU): Maintains stable delivery pressure for mechanical ventilation.
General Wards: Supplies wall terminal units across patient floors via zone shut-off valve boxes.
Customization Options
Capacity Scaling: Single, dual, or multi-bank manifold configurations matched to bed counts.
Enclosure Types: Open modular skids or sound-dampened cabinet housings.
Communication Protocols: Integration support for PROFIBUS, BACnet, or Ethernet platforms.
Manufacturing & Quality Control
Welding Standards: Pressure vessels and pipelines welded by ASME-certified technicians using TIG root-pass shielding.
Pressure Testing: 100 percent hydrostatic testing executed at 1.5x operating pressure, followed by a 24-hour pneumatic dry-nitrogen leak test.
Cleanroom Assembly: Critical oxygen-cleaning and final assembly executed in an ISO Class 8 controlled environment to prevent particulate entrapment.
Certifications & Compliance
Quality Management: ISO 13485 and ISO 9001 certified manufacturing facilities.
Regulatory Compliance: Engineered in accordance with ISO 7396-1 (Medical gas pipeline systems) and HTM 02-01 standards.
Packaging & Delivery
Sealing: Ports fitted with anti-dust, moisture-resistant caps; internal circuits protected against marine corrosion.
Crate Construction: ISPM 15-compliant fumigated plywood crates featuring internal shock-absorbent bracing for HMI and instrumentation protection.
Lead Time: Standard configurations ship in 4 to 6 weeks; engineered custom projects require 8 to 10 weeks.
FAQ
Q: How does automatic switchover function during a power outage?
A: The switchover mechanism uses pneumatic differential pressure valves that operate mechanically without electrical power. An emergency UPS powers the digital HMI and remote alarm transmission.
Q: What medical oxygen purity levels are supported?
A: The unit is compatible with medical oxygen meeting USP/EP pharmacopoeia standards (>= 99.5 percent purity from LOX/cylinders).
Q: Can this unit integrate with existing hospital building management systems?
A: Yes. Standard potential-free relay contacts and RS485/BACnet outputs support direct connection to master alarm panels.
Request a Quote
To receive a technical proposal and pricing tailored to your facility requirements, please provide the following details in your inquiry:
Total number of hospital beds / target flow rate (m3/h)
Inlet source type (Liquid oxygen tank or high-pressure cylinders)
Pipeline output pressure requirement
Destination port or site location
[ Submit RFQ / Contact Engineering Team ]
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