Control Valve Regulators: All

Dresser Masoneilan control valve regulators provide accurate pressure reduction, back pressure and differential pressure applications. Designed for a range of media from air and liquid to saturated and superheated steam, our regulators offer dependable service in the most critical situations.

170 Series Regulators

170 Series Regulators

These small self-contained pressure regulators are designed to provide accurate reducing or back pressure control of low volumes of air, liquid and steam.

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Pressure Reducing Regulator

171 Series Pressure Redcing Regulators

The 171 Series self-contained cast iron pressure regulators are designed to provide accurate reduced pressures of air, liquid and saturated steam.

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172 Series Pressure Reducing Regulators

172 Series Pressure Reducing Regulators

The 172 Series self-contained heavy duty pressure reducing regulators are designed to provide accurate reduced pressures of air, liquid, saturated steam and superheated steam.

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173 Series Back Pressure Regulators

173 Series Back Pressure Regulators

The 173 Series self-contained back-pressure regulators are designed to provide accurate pressure relief control of air, liquid, saturated steam and superheated steam.

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174 Series Back Pressure Regulators

174 Series Back Pressure Regulators

The 174 Series self-contained pressure regulators are designed to provide accurate reduced or back pressure (pressure relief) control of air or gas services.

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500 Series High Capacity Regulators

500 Series High Capacity Regulators

High capacity regulators for steam, gas and liquid applications requiring accurate pressure control and reduction. 

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10900 Series Pressure Reducing Regulator-Actuator

10900 Series Pressure Reducing Regulator-Actuator

Spring diaphragm actuators for use with Dresser Masoneilan 500 Series regulators for pressure reduction, back pressure, and differential pressure applications.

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