M1-540-8FM - Oxygen Flowmeter Regulator CGA-540 Single Stage Preset

Technical Overview of the M1-540-8FM Oxygen Flowmeter

The M1-540-8FM is a specialized single-stage regulator flowmeter designed for the precise control of Oxygen gas in industrial and technical applications. Engineered with a focus on reliability and accuracy, this unit utilizes a preset pressure mechanism. By maintaining a constant intermediate pressure, the device ensures that the flow rate remains stable and linear across the adjustment range of the needle valve. The inlet is machined to CGA-540 specifications, the standard for industrial oxygen cylinders in North America, ensuring compatibility with a wide range of supply tanks.

Constructed from high-quality machined brass, the body of the regulator offers excellent resistance to corrosion and mechanical wear, making it suitable for shop environments and field use. The flowmeter section features a clear, impact-resistant tube with a high-visibility ball float, allowing operators to verify flow settings at a glance. Unlike gauge-based flow indicators, the vertical tube design provides a direct reading of the gas flow, which is critical for applications requiring specific volumetric delivery.

This unit is part of the M1 series, known for its compact footprint. This makes it an ideal choice for portable welding carts, small laboratory setups, or tight manifold configurations where space is at a premium. The outlet is equipped with a standard nut and nipple assembly, facilitating a secure and leak-free connection to standard oxygen hoses. Safety features include internal relief mechanisms designed to protect the low-pressure side from over-pressurization.

Key Technical Specifications:

• Gas Service: Oxygen
• Inlet Standard: CGA-540
• Regulation Type: Single Stage, Preset Pressure
• Flow Indication: Vertical Tube Flowmeter
• Body Material: Brass