Regulators

Regulators: The original non-bleed control element. Environmentally friendly by design.

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Need Help Choosing the Right Isolation Valve?

Selecting the right regulator is essential for reliable pressure control and consistent process performance. Our specialists can help you find the right solution for your application.

Contact us for expert guidance, whether you’re replacing existing equipment, troubleshooting performance, or designing a new system.

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LS200 Direct Operated Regulator

Fisher LS200 self operated regulator are ideal for district stations or high capacity industrial applications such as driers, furnaces, boilers or burners. The LS200 is a large capacity, balanced port with optional integral slam-shut. Ease of maintenance was the primary goal in this product development.

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What is a regulator for?

Before the invention of pressure reducing valves, controlling pressure was labor-intensive. William Fisher's invention made modern conveniences like gas heating and water flow possible. Fisher's legacy is evident in Emerson Fisher products used in industries worldwide, from oil & gas to food & beverage.

Self Operated Regulators

Direct operated regulators are the simplest style of regulator. At lower pressures (below 1 psig) they can have very accurate control. At high pressures (up to 500 psig) 10% - 20% is typical.
In operation, a direct operated pressure regulator senses the downstream pressure through either internal pressure registration or an external control line. this downstream pressure opposes a spring which moves the diaphragm and valve plug to change the size of the flow path through the regulator.

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Pilot Operated Regulators

Pilot operated regulators are preferred for high flow rates or where precise pressure control is required.
Typically used in larger line sizes and very common for natural gas applications.

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Pressure Relief / Backpressure

A pressure relief valve is used to limit pressure build-up (i.e., prevent overpressure) at its location in a system. The relief valve opens to prevent a rise of internal pressure
in excess of a specified value. Pressure relief valves can be direct-operated or pilot-operated.

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