337 Highlandia Drive Baton Rouge, LA 70810 1.800.299.4142 [email protected]




The RAMC is a short-tube variable area flow meter used for the measurement of flow rates of liquids and gases, particularly in troubled, opaque or aggressive mediums. The RAMC features a robust design, provides reliable measurements with or without power and HART® or Profibus PA, resulting in a truly universal flow meter for gas, liquid and steam applications.


All Mechanical Design

The RAMC has a simple, robust design with three common components, making it ideal for low and high temperature applications, as well as making it highly reliable and reducing maintenance costs.

Field Replaceable Components

Many components of the RAMC are replaceable, including the float, scale, eprom (for eletronic transmitters), limit switches, and housing.

Float Damping System (for Gas Applications)

The float damping system is used in gas applications to avoid bouncing and putting a lot of wear on the float itself. The system is retrofittable and exchangeable at any time without requiring the operator to replace the float, and it can withstand a pressure maximum of up to 40 bar absolute. With this damping system, no recalibration is necessary after installation of the damping, and it is available to add on to old rotameters.

Float Blockage Indication System

This function is used for the electronic transmitter and detects when fluctuations remain under the preset level, activating an alarm.

Indicator Features & Options

  • Optional Electronic transmitter with HART protocol, various power supplies and signal outputs for 4-20ma and HART 5 and 7
  • Indicator is available in stainless steel and aluminum
  • Adjustable Limit Switches (optional), achieves SIL2 rating
  • Broad range of hazardous area approvals (ATEX, IECEx, FM, etc.)

Learn more about Variable Area Flow Meters available at BBP.

Additional information


Chemical, Engineering, Food & Beverage, Oil & Gas, Pharmaceutical, Power Generation, Pulp & Paper, Refining, Water & Wastewater