02/10/2025
OXYGEN REGULATOR
An oxygen regulator reduces high-pressure gas from a cylinder to a safe, usable pressure for delivery to a patient or equipment. Key parts include the cylinder connection, which attaches to the cylinder; the high-pressure gauge, showing remaining oxygen; the flowmeter, which controls oxygen volume (LPM); and the outlet, where the delivery device connects. Safety features include pressure relief valves and internal diaphragms.
Key Parts & Functions
Cylinder Connection (Bullnose Connector/Yoke):
Connects to the oxygen cylinder's valve, providing a secure and leak-free seal for the high-pressure gas.
High-Pressure Gauge (Cylinder Gauge):
Indicates the current pressure of the oxygen remaining inside the cylinder, typically measured in pounds per square inch (PSI).
Pressure-Reducing Regulator:
The core of the device; it contains a diaphragm and a spring-loaded valve that opens and closes to reduce the high cylinder pressure to a safe, stable outlet pressure.
Flowmeter (or Flow Control Valve/Dial):
Allows the user to set and adjust the flow rate of oxygen being delivered, usually measured in liters per minute (LPM).
Low-Pressure Gauge (Delivery Gauge):
Shows the pressure of the oxygen being delivered to the patient or equipment after it has been regulated.
Outlet Connection (The "Tree"):
The fitting where a nasal cannula, mask, or other oxygen delivery device is plugged in.
Pressure Relief Valve:
A safety device designed to prevent excessive pressure buildup in the regulator by releasing excess gas if the pressure exceeds a safe threshold.
Body/Housing:
The main structure, often made from strong, corrosion-resistant materials like brass or aluminum, that houses all internal components.
O-Ring/Sealing Washer:
A crucial component, often found inside the cylinder connection, that creates a tight, leak-proof seal between the regulator and the cylinder valve stem.
How it Works
1. Connection:
The regulator's yoke fits over the oxygen cylin
