Sensus Regulators

Sensus Regulators
  • Sensus Regulator  122-8 : 1″ and 1-1/4″

    Sensus Regulator 122-8 : 1″ and 1-1/4″

    Available in 1″ and 1-1/4″ sizes.


    For an unbeatable combination of capacity, performance and economy, install the Sensus Metering Systems Model 122…the latest in industrial-combustion type gas pressure regulators.


    Streamline body passages provide large capacity.
    Carefully engineered internal sensing produces accurate pressure control without an external control line. And, just in case a particular application necessitates one, a handy tap on the 122 makes connection into an external control line a simple matter.


    Note: 122 series regulator must be mounted with the diaphragm in a horizontal position. It cannot be mounted sideways with diaphragm in vertical position.


    Diaphragm cases are high strength, corrosion resistant die-cast aluminum alloy. This makes a better looking regulator at a better price. In addition, on 1″ through 2 1/2″ sizes a large area double acting damper in the vent assures fast speed of response while maintaining stability…just the thing for those troublesome “snap-acting” loads.
    Soft seats plus a precision machined “knife-edge” orifice provide positive tight shutoff. And the orifice is removable.

    Periodic Inspection:
    Regulators are pressure control devices with numerous moving parts subject to wear that is dependent upon particular operating conditions. To assure continuous satisfactory operation, a periodic inspection schedule must be adhered to with the frequency of inspection determined by the severity of service and applicable laws and regulations.

  • Sensus Regulator  122-12 : 1-1/2″, 2″, 2-1/2″

    Sensus Regulator 122-12 : 1-1/2″, 2″, 2-1/2″

    Available Sizes
    1-1/2″, 2″, 2-1/2″

    For an unbeatable combination of capacity, performance and economy, install the Sensus Metering Systems Model 122…the latest in industrial-combustion type gas pressure regulators.

    Streamline body passages provide large capacity.
    Carefully engineered internal sensing produces accurate pressure control without an external control line. And, just in case a particular application necessitates one, a handy tap on the 122 makes connection into an external control line a simple matter.

    Diaphragm cases are high strength, corrosion resistant die-cast aluminum alloy. This makes a better looking regulator at a better price. In addition, on 1″ through 2 1/2″ sizes a large area double acting damper in the vent assures fast speed of response while maintaining stability…just the thing for those troublesome “snap-acting” loads.
    Soft seats plus a precision machined “knife-edge” orifice provide positive tight shutoff. And the orifice is removable.

    Periodic Inspection:
    Regulators are pressure control devices with numerous moving parts subject to wear that is dependent upon particular operating conditions. To assure continuous satisfactory operation, a periodic inspection schedule must be adhered to with the frequency of inspection determined by the severity of service and applicable laws and regulations.

  • Sensus Regulator  461-8S/12S : 2″

    Sensus Regulator 461-8S/12S : 2″

    Available Sizes
    2″ Screwed Only

    The Sensus Models 461-S, 461-8S and 461-12S are balanced valve, spring type regulators designed for distribution and
    industrial applications where a single seat regulator is too small and the usual 2″ balanced valve regulators are too large. They are made in 2″ pipe sizes only and are used for:
    Inlet Pressures to 175 psi
    Outlet Pressures of 0 to 10 psi

    Contoured body passages for reducing turbulence and large exit areas give them a broad capacity capability thus making them applicable to a wide variety of load handling requirements.
    The 461-S is an unusually dependable regulator. It’s design is simple, the construction is sturdy. Servicing and adjustment are easy, response is fast. The overall operation is stable and sensitive, and they provide exceptionally precise regulation.
    The 461-Sis a excellent regulator for general usage and makes an excellent choice for such special applications as snap action on-off loads and monitoring service.

  • Sensus Regulator  461-57S : 2″

    Sensus Regulator 461-57S : 2″

    Available Sizes
    2″ Only

    The heart of the Model 461-57S is the “Roll-Out” diaphragm. The 461-57S is a spring regulator with performance which approximates that of a pilot operated regulator. The “Roll-out” Diaphragm makes this exceptional performance possible because its action reduces “droop” to a minimum (“droop” being fall off in outlet pressure as a spring regulator opens to increase flow.)
    The action of the “Roll-Out” diaphragm differs from that of the conventional diaphragm in the manner in which the change in effective area occurs. Where the effective area of a conventional diaphragm would increase as the regulator opens, the “Roll-Out” area decreases. Conversely, where the area of the conventional diaphragm decreases during closing, the “Roll- Out” area increases. The following explanation and the illustrations below show how this affects regular performance.
    Spring type regulators are operated by the inter-action between spring and diaphragm. The compressive force of the spring works to open the regulator and is balanced by the opposing force of outlet pressure on the diaphragm which provides
    the closing force.
    As the regulator opens, the compressive force of the spring decreases. However, as this spring force decreases, there must be a corresponding decrease in the opposing force from the diaphragm. For this opposing diaphragm force to decrease, either the
    effective area or the outlet pressure must decrease. Herein is the essential difference; with a conventional diaphragm the outlet
    pressure must decrease, where as with the “Roll-Out” diaphragm it is the effective area that decreases, permitting the outlet pressure to remain constant. The operation actually is quite simple, yet the action of the “Roll-Out” diaphragm is so effective that “droop” is practically eliminated.
    The Model 461-57S provides constant pressure regulation not previously possible in a “pounds to pounds” spring regulator. It approaches pilot performance, and, in addition, offers the further advantages of simplicity, dependability, freedom from freeze-up, and exceptionally fast response.

  • Sensus Regulator  461-X57 : 2″

    Sensus Regulator 461-X57 : 2″

    Available Sizes
    2″ Only

    The 461-X57 is something unique in a high pressure regulator. It features the same “Roll-Out” diaphragm principle that has achieved such remarkable success in the widely used 441-57S and 461057S Regulators.
    The 461-X57 offers pilot performance with spring regulator simplicity. The “Roll-Out” diaphragm makes this outstanding performance possible by minimizing that old gremlin, “droop.”
    “Droop” means rough regulation…wide fluctuation in pressure control as flow varies. It is the result of spring effect plus diaphragm effect.
    The “Roll-Out” diaphragm changes this by eliminating diaphragm effect and neutralizing spring effect, thus, “droop” is reduced to insignificance. The result – smooth, constant pressure regulation. It comes amazingly close to the control performance of the pilot operated regulator.

  • Sensus Regulator  441-S : 2″, 3″, 4″

    Sensus Regulator 441-S : 2″, 3″, 4″

    Available Sizes
    2″, 3″, 4″

    The Model 441-S belongs to a family of regulators that are balanced valve, spring type regulators designed for distribution and industrial applications. They are extremely dependable with simple design, sturdy construction, and fast response. Service and adjustment are easy and overall operation is stable and sensitive.
    This model is ideal for distribution and industrial applications where a single seat regulator is too small and the usual 2″ balanced valve regulators are too large. Their large exit areas give them a broad capacity, making them applicable to a wide variety of load handling requirements.
    When large loads are the requirement, the model 441-S regulators have the larger bodies and valves to deliver the gas. Large, flexible diaphragms combined with accurately calibrated springs enable these large capacity regulators to produce precise pressure control while maintaining a high level of sensitivity and stability. The combination of their fast response, dependability, and accuracy make the 441-S models ideal for monitoring, as well as other applications where speed and accuracy are significant.