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New spring-to-open regulator released

The EZHSO design incorporates a unique spring cartridge that offers a fail-to-open alternative, ensuring gas delivery in the event of diaphragm failure or lack of supply pressure to the pilot. The failure action is the opposite of the EZH Series spring-to-close pressure reducing regulators.

EZHSO and EZHSO-OSX (slam-shut) regulators are available in 1, 2, 3, and 4 inch sizes. These new offerings provide the same benefits as Emerson’s proven Fisher EZH regulators including a no-bleed design, top-entry maintenance, bubble-tight shutoff, and inlet/outlet rating of 1,500 pounds per square inch guage (103 bar).

The Whisper Trim Cage option is available for 2, 3, and 4 inch sizes, opening a broader application range for this product family. Noise reduction of 10-20 A-weighted decibels can be achieved, depending on the application. As a “source treatment”?, the Whisper Trim technology utilises multiple orifices of special size, shape, and spacing, which reduces noise-producing interactions.

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