Watson McDaniel Company Datasheets for Air Pressure Regulators

Air pressure regulators control pressure in air lines (usually adjustable) to remove fluctuations and maintain consistent pressure for pneumatic devices.
Air Pressure Regulators: Learn more

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Product Name Notes
The “O” Series Pressure Regulating Valves are used for reducing pressure in steam, air, and water systems. Commonly used in heating and other process applications.
The 402 and 403 Series Internally Pilot-Operated Pressure Regulating Valves are used for pressure reduction on steam mains and other process equipment. Pilot-operated regulators will maintain a constant and accurate...
The 455 Series Externally-Sensed Pressure Regulating Valves are used for reducing pressure in steam, air, and water systems. Commonly used in heating and other process applications. Externally-sensed regulators are often...
The B Series Pressure Regulating Valves are used for reducing pressure in air and water systems. These regulators are commonly found in industrial plants, apartment buildings, water supply systems, schools,...
The HD or D Regulator with the “A” Air Pilot is used for reducing steam pressure on steam mains and process equipment. The “A” Air Pilot can also be used...

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