Roots Meters & Instruments offers a complete line of rotary meter sizes to measure a wide range of gas volumes for the majority of commercial and industrial applications in custody transfer applications. Refer to a Meter Sizing Chart to determine the correct meter size for cost effectiveness and accurate measurement. When selecting a meter size for your application, use the minimum operating pressure and maximum instantaneous flow rate.


8C/11C/15C

Our meters are widely recognized for their highly accurate measurement capabilities at both the low and high end of their rated capacity. The meter's rangeability (ability to measure gas over a wide flow range within a specified accuracy) provides the best over-all accuracy on a "day-after-day" basis.
ROOTS® meters are suitable for handling most types of clean, common gases at either constant or varying flow
rates, temperatures and pressure. They are ideal for  
applications throughout the meter's operating range, from a  few ounces to full maximum allowable operating pressure.

2M/3M/5M     

For further versatility, the five smallest meter sizes (8C through 3M) have 2" (50 mm) flanged connections, and a 6-3/4" (171 mm) flange-to-flange dimension. If application requirements change, this unique, cost-effective feature allows a quick and easy meter exchange without the need to re-pipe the meter set.



7M/11M/16M

Series B3-HPC (High Pressure Cartridge) Meters
This meter line features a common cast-steel housing for the 1M      (1000 ACFH) and 3M (3000 ACFH) sizes of aluminum cartridges. The meters are available with either an ANSI Class 300# flange (740 PSIG) or an ANSI Class 600# flange (1480 PSIG).The cartridges are field replaceable and are interchangeable between housings regardless of the pressure rating on the housing. As an option, a self-resetting full flow internal bypass is available on new meters and on replacement cartridges. Since this meter utilizes the Series 3 Accessory Units, a full line of index options are  available.

Series B3-HPC

                                                                                                                                Removable B3-HPC Cartridge

Series B3-HP (High Pressure) Meters
For lower pressure loads, the 1M300 (1000 ACFH) and 3M300 (3000 ACFH) are viable alternatives for pressures up to 300 PSIG. Based on the B3 meter line, the B3-HP meters offer extremely low start and stop rates and a compact design with a 6-3/4" flange-to-flange dimension and a much lower weight than traditional high pressure meters. This is achieved by using aluminum for all major meter components. The Series B3-HP meters mate with ANSI 300# flanges and are easily installed by one person without the need for a lift or hoist.

Series B3-HP

7M1440 High Pressure Meter
7M1440 meters are designed for higher capacity applications (7000 ACFH) with a maximum allowable operating pressure of 1440 PSIG. The materials of construction are cast ductile iron and cast steel to meet the demands of the higher flow rates and pressures.

                                                                                                                      
                                                                                                                                                  7M1440                                                                                                                                                 

Series Z Compact Meters
Ideal for small commercial loads at pressures up to 15 PSIG (1 Bar), the aesthetically pleasing 5C15 (500 ACFH) and 8C15 (800 ACFH) meters are easy to install and conceal. Series Z meters provide excellent measurement accuracy starting at "pilot loads" and continuing throughout the range of the meter. To match the meter configuration to the application, the user selects the following parameters
when ordering:

• 
  Dial or Odometer type Index
• Sealed or Vented Index
• Standard (Atmospheric) or 2 PSIG
  Compensated Index
• Top or Bottom Inlet
• Sprague 4 (male), 45 Light (male), or 1-1/2 inch
  NPT (female) Connections
• Optional Inlet Strainer / Screen
  

Series A (LM-MA) Meters
The 8C175 compact meter, like the Series Z, is also ideal for small commercial applications, but with a higher pressure rating. This meter is rated for a 175 PSIG (12 Bar) working pressure.

Series A(LM-MA)

Series A1 Foot Mount Meter
The 102M125 Foot Mount meter is used for the measurement of high volume industrial gas loads for capacities up to 965.3 MSCFH at 125 PSIG (27,941 Nm³/h at 8,6 Bar).

    Series A1                                                                                                                        

                                                                                                                                            
                                                                                                                       

B3-VRM Vapor Recovery Meter
Rated for a maximum capacity of 3000 actual cubic feet per hour, the B3-VRM meters are specifically designed and tested for vapor recovery applications and conform to the California Air Resources Board specifications TP-201.1, TP-201.1A, TP-201.2, and TP-201.5, as applicable. The extremely low pressure drop associated with the ROOTS positive displacement meter makes this meter ideal for the accurate measurement in low pressure recovery systems. Odometers on the vapor recovery meters are marked at 0.02 cubic foot increments, which allows accurately estimated readings in increments of 0.01 cubic feet. All B3-VRM meters are supplied with a 7 point certified accuracy curve for reference.         


                                                                                                                                     B3VRM

       

       H O M E     P A G E