Dwyer Series RMV Rate-Master® Dial-Type Flow Meters

Dwyer RMV Series Rate-Master® Dial-Type Flow Meters

Dwyer RMV Series Rate-Master® Flow Meters measure higher water flow rates with ±2% of full scale accuracy at an affordable price. Stocked models are fitted with 1″ female NPT inlet and outlet; 3/4″ and 1/2″ sizes are also available. Install in line, supported by piping or flush panel mount with complete hardware package included.

Dwyer offers different types of Dial Flowmeters for various applications. Flow meters measure water, oil, gas or air flow rates. Applications include calculating required fill or drain times for tanks, water towers, backflow prvention, heat exchangers, and oil & gas equipment.

Dwyer RMV Series Features

  • Rugged forged brass housing yields great compatibility and strength, allowing the unit to withstand system pressures to 1000 psig (68.9 bar)
  • Shatter proof construction, unlike glass tube variable area flow meters, yields long operation life


  • Monitor coolant flow through ingot heaters, high-amp switchgear, resistance welders, heat exchangers, compressors, scrubbers.
  • Monitor water consumption to different processes and operations for more efficient operation.
  • Calculate required fill or drain times for tanks, water towers
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Service Compatible liquids.
Wetted Materials Brass, copper, 302 SS, sintered barium ferrite.
Temperature Limits 20 to 200°F (-6.7 to 93°C).
Pressure Limits 1000 psig (68.9 bar).
Pressure Drop 0 to 5 GPM: 3.2 psid; 0 to 10 GPM: 5.3 psid; 0 to 20 GPM: 10.4 psid.
Accuracy ±2% of FS.
Size Diameter dial face 4″ (101.6 mm).
Process Connections See specific model number on Catalog page.
Maximum Flow 1.5 x full scale reading.
Weight 9 lb (4.08 kg).

Ref: dwyer-inst.com

Download Data Sheet: Series RMV Rate-Master® Dial-Type Flow Meters