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Xylem
441-57S and 461-57S Medium Pressure Regulators
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Simple design
Standard face-to-face dimensions
Standardized bodies and fully interchangeable inner valve assemblies for easier maintenance
Simplified valve adjustment
Bushing guided inner valve
Molded polyurethane soft seats
Self-aligning spring adjustment
Our Model 461-57S and Model 441-57S medium pressure regulators are spring-operated regulators that incorporate a “roll-out” diaphragm, similar to the performance found in pilot-operated regulators.
The action of the roll-out diaphragm reduces “droop” (the fall off in outlet pressure as a spring regulator opens to increase flow). This makes the regulators’ exceptional performance possible. By offering near-pilot-operated regulator performance without a pilot, the 57S-series regulators offer simplicity, dependability and exceptionally fast response.
Both models are perfect for most intermediate and large-capacity applications:
Gas distribution systems
District regulator sets
City gate stations
Town border stations
Monitoring
A wide variety of industrial applications.
These workhorses of the industry have been recognized for their dependable service for nearly 70 years.
Benefits to you
Monitors set-point pressure
Responds quickly to take control in case of emergency