UNITOR MEDISELECT II MEDICAL OXYGEN REGULATOR 200 BAR 0-25 1/MIN

The UNITOR MEDISELECT II is a wall-mounted or cylinder-mounted pressure-reducing regulator. Its primary function is to take high-pressure oxygen from a central supply line or a large cylinder (at up to 200 Bar) and reduce it to a safe, usable working pressure, while allowing healthcare professionals to finely control the flow rate delivered to a patient.

Breakdown of the Product Name & Key Specifications

1. UNITOR: The manufacturer. UNITOR is a well-known, reputable brand in maritime and industrial gas solutions, now part of Dresser-Rand / Siemens. Their medical equipment is known for durability and reliability.

2. MEDISELECT II: The model name. “Medi” indicates it’s for medical use. “Select II” suggests it is a second generation or a specific series with enhanced features, typically referring to a robust design with a clear flowmeter.

3. Medical Oxygen: Explicitly states its intended use for medically certified oxygen (ISO 15001, ISO 10083, or similar standards). It is designed for purity and safety, using oxygen-clean components and materials compatible with high-oxygen environments to prevent fire risk.

4. 200 BAR (3000 PSI): This is the maximum inlet pressure the regulator is designed to safely connect to. It corresponds to the standard pressure of a full large medical oxygen cylinder or a hospital’s central pipeline pressure. Never connect it to a source exceeding this pressure.

5. 0-25 L/MIN (Liters Per Minute): This is the flow rate range of the flowmeter. It is a medium-to-high range flowmeter, suitable for:

   • Low Flow: 0-5 L/min for nasal cannulas.

   • Medium Flow: 5-15 L/min for simple oxygen masks, venturi masks, or nebulizers.

   • High Flow: Up to 25 L/min for non-rebreather masks, trauma, or specific therapy needs. It is NOT designed for mechanical ventilator driving gas, which often requires 50-100 L/min.

Typical Features & Components:

• Inlet Connection: A threaded BS/EN ISO 4079 (or Pin Index) yoke for connection to a wall outlet or a cylinder valve.

• Pressure Gauge: A high-pressure gauge showing the supply pressure from the cylinder or central line (0-200 Bar or similar). This tells you how much oxygen is left in the source.

• Pressure-Reducing Mechanism: An internal diaphragm/spring system that reduces the variable high inlet pressure to a constant lower outlet pressure (typically around 4 Bar / 60 PSI).

• Flow Control Knob: A precise, often tactile knob for adjusting the flow rate.

• Flowmeter: A rotameter (a calibrated tube with a floating ball or bobbin) that visually indicates the set flow rate in liters per minute (L/min). The scale is 0 to 25.

• Outlet Connection: Standard DIS / Schrader (or similar) outlet for connecting the oxygen tubing that runs to the patient’s delivery device (mask, cannula).

• Construction: Robust metal (brass, chrome-plated) body with safety glass or polycarbonate flowmeter tube.

Primary Applications & Use Cases

• Hospital Wards: Bedside oxygen points.

• Clinics & GP Surgeries: For minor procedures or therapy.

• Nursing Homes / Long-Term Care Facilities: For patients requiring long-term oxygen therapy (LTOT).

• Home Healthcare: When set up with a large oxygen cylinder.

• Ambulances / Medical Transport: (As part of a fixed installation).

• Administering oxygen via: Nasal cannula, simple face mask, venturi mask, non-rebreather mask, or for driving a medication nebulizer.