Speedaire Air Regulators for Precise Pressure Control
Running pneumatic tools at the wrong pressure either reduces performance or causes premature wear. A Speedaire air regulator gives precise, reliable control over the downstream pressure in any air system, protecting tools and improving results.
Why Every Air System Needs a Quality Air Pressure Regulator
Most shop compressors are set to run at 125 to 175 PSI to keep a full tank ready. But most pneumatic tools are designed to operate at 90 PSI or less. Without a regulator in the line, tools run over-pressurized, which leads to faster wear, reduced control, and higher air consumption.
Speedaire air regulators are constructed from zinc and aluminum for corrosion resistance and durability. They are designed to hold a steady set pressure even as downstream demand fluctuates. The regulators use a simple knob or dial adjustment, and most include a built-in gauge for easy reading.
Speedaire offers general purpose regulators for standard shop use, high-flow models for applications requiring large volumes of air, and combination filter-regulator units that clean the air and control pressure in a single device
The 4ZM09 model, for example, handles up to 440 CFM at pressures up to 300 PSI with a 3/4 inch NPT connection. That kind of capacity is more than sufficient for the most demanding shop environments
Speedaire Regulator Configurations
- General purpose regulators for standard pneumatic tool applications
- High-flow models for large CFM requirements
- Filter-regulator combinations for compact air treatment setups
- Miniature regulators for space-constrained installations
- Panel mount regulators for integration into air systems and machinery

Best-Selling Speedaire Air Regulators
These are the regulators that keep showing up in shop air systems across auto repair, manufacturing, and woodworking environments.

Speedaire, 4ZM14, Air Regulator
Provides precise pressure regulation and stable air supply.

Speedaire Air Regulator 4ZM22-1
Stable air flow and high throughput.

Speedaire, 4ZM06, Air Regulator
regulates air pressure, ensures safe operation of the pneumatic system.

Speedaire, 4ZM13, Air Regulator
Provides precise and stable pressure regulation.
Speedaire Air Regulator FAQ
An air regulator reduces and stabilizes the pressure coming from the compressor tank before it reaches the tools or equipment downstream. The compressor may cycle between 100 and 175 PSI, but the regulator holds the output at a constant set pressure, such as 90 PSI, regardless of what the tank pressure is doing.
Install the regulator downstream of the compressor tank and any filters or dryers. It should be positioned close to the point of use, especially if multiple tools or stations are served from the same air line. In a shop with a main distribution line, a master regulator at the compressor plus individual regulators at each drop point gives the best control.
Pull up on the adjustment knob to unlock it, then turn it clockwise to increase pressure or counterclockwise to decrease pressure. Watch the gauge as you adjust. Once the correct pressure is set, push the knob back down to lock it in place. Always set the regulator while air is flowing through it, not in a static condition.
A standalone regulator only controls pressure. A filter-regulator combines a particulate filter and a pressure regulator in a single housing. The filter removes dirt, rust, and pipe scale from the air before it reaches the regulator seat. For most shop applications, a filter-regulator is the better choice because it handles two functions without requiring two separate connection points in the line.
Speedaire offers regulators in a range of pressure ratings. General purpose models typically handle up to 250 to 300 PSI. Miniature or instrument regulators handle lower pressures for precision applications. Choose the model whose pressure range matches the application, and do not use a high-pressure regulator on an application requiring very low output pressure, as accuracy degrades at the low end of a wide-range regulator.

