Accurate Measurement Controls, Inc.


Coriolis Pipe
Micro Motion

“We are a Micro Motion and Rosemount Flow Strategic Partner utilizing Coriolis, Density, Magnetic and Vortex flow technologies to provide end users with most accurate and reliable O&G flow measurement solutions.”

  • Prevent 4 Common Pressure Gauge Failures and Safety Risks

    Mechanical pressure gauges could be costing your plant more than you think. Traditional Bourdon tube pressure gauges rely on an elastic tube that deforms in response to pressure changes. The following process environments can cause mechanical components to fail or Bourdon tubes to break, resulting in inaccurate readings, downtime, and potential safety issues.

    Extreme Temperatures: Hot processes and high ambient temperatures can damage the pressure gauge if temperature limits are exceeded. Alternatively, very cold environments can cause process fluids to freeze within the Bourdon tube and glass screens to crack or break.

    Corrosion: Harsh processes may lead to corrosion of the Bourdon tube, causing leakage which would result in dangerous process fluid escaping into the environment.

    Vibration and Pulsation: Pipeline vibration is one of the most common causes of mechanical gauge failure and can make it difficult to correctly read a pressure gauge. Additionally, process pulsations can degrade gauge components, resulting in device malfunction.

    Overpressure: Overpressure events can permanently damage mechanical pressure gauges and pose serious safety risks. Often the first indication of overpressure is that a gauge reads inaccurately due to a warped Bourdon tube. If pressures continue to rise, the Bourdon tube may rupture, resulting in a leak point, which can expose personnel to hazardous process fluids.

    Prevent these risks using advanced gauge technology, such as Emerson’s Rosemount™ Pressure Gauges, which replace mechanical components and Bourdon tubes with patented solid-state sensor technology that is designed to provide a 30-year service life. Additionally, a burst pressure rating of at least 11,000 PSI greatly reduces the potential for a catastrophic failure from an overpressure event. The Rosemount Wireless Pressure Gauge features WirelessHART® technology, which delivers real-time insights that allow you to quickly identify process anomalies while reducing operator rounds.

  • Rotary Vane Valve Actuators for Critical Applications

    If you’re unfamiliar with rotary vane valves actuators, they are used to automate ball valves or plug valves in all types of severe climatic conditions. These actuators are typically installed in applications that are critical in nature where the consequences of failure can be severe. For example, in natural gas pipeline applications these actuators are typically powered by natural gas for use in emergency shutdowns, mainline isolation, linebreak protection, station blow down, remote valve control, and high- & low-pressure shutoff conditions.

    This quick 3-minute video, Shafer RV Series Rotary Vane Valve Actuators–-operating systems for critical pipeline applications illustrates the construction, features, benefits and applications for these actuators.

    The video opens showing the materials of construction and its design to last for 50 years of service. Next, it shows some the specifications such as rated pressures, torque output, power supply pressures and mediums, and ambient temperature ranges. It highlights the advantages of rotary vane actuation technology such as no motion conversion from linear to rotary, no side loading on bearings or valve stems, and balanced torque output.

    This torque output remains constant through the complete rotation of the actuator. It operates through opposite chambers in the actuator connected by equalizing passages in the upper and lower heads. This produces perfectly balanced torque as the hydraulic force simultaneously pushes both the rotor vanes away from the stationary shoes.

    Visit the Shafer RV-Series Hydraulic Valve Actuator page and Turnkey Valve Operating System Actuator Control Package section on for more on this and other actuator technologies to help drive safe, reliable and efficient operations.

    You can also connect and interact with other valve actuator experts in the Valves, Actuators & Regulators group in the Emerson Exchange 365 community.

  • Learning about Control Valve Performance
  • Coriolis Flow Meters for High Accuracy Refining Applications