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Model 441-X57 & Model 461-X57

The Sensus 461-X57 and 441-X57 regulators are unique high-pressure, large-capacity, spring-operated regulators. These high-pressure regulators incorporate the same roll-out diaphragm principal that is widely used in the Sensus 461-57S and 441-57S models. 

Both regulators offer pilot-type performance with spring-operated regulator simplicity. The action of the roll-out diaphragm makes the regulators’ exceptional performance possible by reducing droop, the falloff in outlet pressure as a spring regulator opens to increase flow, to a minimum. 

These models feature fast response and ease of installing. They are also simple to adjust and service. The 461-X57 and 441-X57 are both perfect for most high-pressure, large-capacity applications. This includes high-pressure regulator sets, gas distribution systems, town border stations, transmission systems and most industrial applications. 

The 461-X57 and 441-X57 regulators can also be used as monitors and quickly assume control if a failure in the operating regulator allows the outlet pressure to exceed its set point. No modifications are required for use as a monitor, even if used as a monitor for other types of regulators. 

Note: The 441-X57 & 461-X57 models are not yet available and will be transferred to USG in Phase 2.



Installs and services easily 


Provides high performance for a spring-operated register 


Allows for use as a monitor, assuming control in a failure



Simple design


Dependable regulation


Trouble-free operation


Fast response


No pilot maintenance


Ball-check diaphragm sentry for safety


Heavy-duty construction


For information about flanged ANSI pipe sizes, maximum inlet pressure, spring ranges and more, download the data sheets.