Air Pressure Regulators

Air Pressure Regulators help to control and maintain a consistent level of air pressure within a pneumatic system. By maintaining a consistent air pressure, regulators help to ensure that the equipment operates safely, efficiently, and effectively.

ControlAir offers three main categories of Air Pressure Regulators; Precision Regulators, Filter Regulators and General Purpose Regulators. Precision Regulators offer accuracy and sensitivity while General Purpose Regulators offer greater economy and efficiency. Air Filter Regulators are considered a vital air preparation device when it comes to protecting your sensitive downstream equipment. Each category includes regulators in various sizes, materials and pressure ranges.

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Precision Air Pressure Regulators are ControlAir core product line. When ControlAir first got started, we built our business around manufacturing precision air pressure regulators. The Type 100, one of our first models and approved for use in oxygen ventilators in 1989, is still widely used today. The thing that sets precision regulators apart from general use regulators is mainly their accuracy and sensitivity. You can think of sensitivity as a regulator’s ability to react to changes in air pressure relative to the unit’s set point. The Type 100, for example, has a sensitivity of 1/8” water column. That means that if the output pressure differs from the set pressure by about 0.0045 PSI, the unit will make a correction to bring output pressure back to the setpoint. We are able to achieve this high level of sensitivity by keeping the diaphragm of the unit in a reactive state. We do this by constantly bleeding a small amount of air, which never lets the diaphragm settle. The same principle is used in the Type 700; however, we are able to achieve the constant bleed without the use of a bleed screw. All of our precision air pressure regulators have a sensitivity less than 1” water column or about 0.036 PSI. Some of the more common applications of these units include medical OEMs, web tensioning, ventilators, calibration standards, and microfluidics.

Filter Regulators are vital air preparation devices when it comes to protecting your sensitive downstream equipment. The purpose of a filter regulator is to clean the air line of moisture and particulates all while reducing air pressure to a setpoint. This is essential when it comes to protecting expensive lab equipment, valve positioners, or I/P transducers. The regulating principles are the same here as they are for all air pressure regulators. However, we are forcing the supply air through a sintered polyethene filter, either 40 or 5 microns in size, to filter out moisture and very small particulates from the supply air. Everything that is filtered out of the air is captured in a drip well and can be either manually drained or automatically drained whenever the fluid hits a certain point. ControlAir’s filter regulators all have a sensitivity of 1” water column and are available in aluminum or stainless steel, as well as relieving or non-relieving.

General Purpose Regulators are a more appropriate selection when cost is a priority over precision. We see our general purpose regulators often used in OEM applications. While most of our precision regulators are sensitive to 1/8” water column, our general purpose regulators, like the Type 400, are sensitive to 1” water column or 0.036 PSI. Since these units are not designed to bleed a small amount of air however, you will see generally less air consumption when using a general purpose regulator. These types of air pressure regulators see a lot of use in the fluid power industry as well as process control instrumentation and panels. Since they are more economic, they make good units to regulate individual service lines rather than the main shop airline, which would require a unit with a greater flow allowance.

For more information regarding Air Pressure Regulators, please see the following blogs:

Types of Air Pressure Regulators: Precision vs. Filter vs. General Purpose Regulators

You Might Need a Precision Regulator When ; ; ;

Understanding a Regulator Flow Characteristic Curve

What is the Difference Between a Relieving and Non-Relieving Regulator?

Cv and Your Pressure Regulator

Air Consumption in a Pressure Regulator

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Air Pressure Regulators

Type 90 Miniature Precision Air Pressure Regulator

Type 100 Precision Air Pressure Regulator

Type 100M Motorized Precision Air Pressure Regulator

Type 1227 High Flow Gas Pressure Regulator

Type 1230 High Pressure Gas Regulator

Type 300 Air Filter Regulator

Type 310 NACE Air Pressure Filter Regulator

Type 330 Air Filter Regulator

Type 335 NACE Air Filter Regulator

Type 340 Air Pressure Regulator

Type 350 Stainless Steel Air Filter Regulator

Type 3500 High Pressure Regulator

Type 360 Stainless Steel Pressure Regulator

Type 3600 High Pressure Regulator

Type 380 Large Flow Capacity Stainless Steel Filter Regulator

Type 390 Large Flow Capacity Stainless Steel Pressure Regulator

Type 400 General Service Pressure Regulator

Type 480 Vacuum Regulator

Type 700 High Flow Pressure Regulator

Type 7000 Precision Air Pressure Regulator

Type 7100 Precision Air Pressure Regulator

Type 710BP Precision Back Pressure Regulator

Type 7200BP Precision Back Pressure Regulator

Type 800 Subminiature Precision Pressure Regulator

Type 850 Miniature Air Pressure Regulator

Type 855BP Miniature Back Pressure Regulator

Type 860 Miniature Water Pressure Regulator

Type 870 Miniature Potable Water Pressure Regulator

Type 950XP Explosion-Proof I/P Transducer

Type FA12 Filter Regulator/Coalescing Filter Combo