RangeMaster Flowmeters for low pressure, low density gases
Typical Flow Applications:
- Combustion fuel and atmosphere flows to furnaces
- Oxygen flow for glass furnaces
- Digesters
- Vacuum flows
- Annealing atmospheres
- Gas mixing
Features & Benefits:.
- Tough, simple & accurate meters for low pressure, low density gas measurement.
- Extended flow ranges averaging 25 to 1.
- Verifiable accuracy
- Low Pressure Drop - Average pressure drop is only 2-1/2" water column.
- Disassembles in less than a minute with¬out removing the meter from the pipeline.
- Liquid dashpot to eliminate float bounce.
- Standard 3/4" thru 4" female NPT connections or optional flanges.
- Rugged steel and stainless steel constructions with standard pressure ratings of 150 psig for maximum safety.
- Interchangeable flow internals.
- Options include Flo-Sentry and Flo-Guardian alarms, pressure gage on meter, oxygen cleaning, KIST or Courier Remote Transmitters.
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SPECIFICATIONS ACCURACY: ±2% of 100% flow rating standard, ±1% is optional. REPEATABILITY: ±1/4% of indicated flow rate on transparent tube models, ±1/2% on magnetic indicating units. RANGEABILITY: 25 to 1 average. MATERIALS: Standard body material is carbon steel (electroless nickel plated), with primary internal flow components of 18-8 stainless steel and/or aluminum depending on fluid service. Sight tubes are polysulfone, heavy-walled borosilicate glass within an armor sleeve, or stainless steel (the latter is required with Courier systems). All stainless construction, including the body, is optional for corrosive service. SCALES: Standard direct reading (SCFH Dry Air @0 psig, 70°F.) or percentage scale. Scales are photo-etched, anodized aluminum. Special scales for other flow units or media conditions, or mylar scales for corrosive environments, are available. Scale length is approximately 3.2" for Size 6 meters, 5.2" on all larger units. OPERATING LIMITS: 150 psig standard, higher pressures optional. Temperatures to 600°F. at lower pressures are possible. “O” RINGS: Buna N standard; Viton, Ethylene-Propylene (EPR), Silicone, Neoprene, Kalrez and Teflon optional. OPTIONS: Flo-Sentry and Flo-Guardian High & Low Alarms, KIST Systems (4 20mA), Flow and Mass Courier Remote Displays, high temperature service raceway (“Hot Top”), flanged connections, pressure gauges installed on the meter, special/multiple scaling, oxygen cleaning, and safety devices available. Steel components are electroless nickel plated as a standard feature, with other coatings, viscosity calibrations, etc., by quotation only. |
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MEMFlo OPTIONS & ACCESSORIES:
- Flo-Sentry and Flo-Guardian High-Low Alarms, KIST two-wire transmitters, or Flow and Mass Courier Remote Signal/Display Systems (all but the Flo-Sentry require use of stainless sight tube model)
- Certified calibrations for either ±2% or ±1% calibrations
- Extra damping oil (oil is supplied with meter)
- High temperature modifications for applications where meters are exposed to high ambients or gas temperatures
- Special scaling in any units desired, including BTUH Scales; metric scales, etc.
- Multiple scaling (for metering gas or gases at varying conditions within a single meter)
- Transparent Safety Guard (Std. on glass tube models)
- Pressure gage, installed on meter & Conversion Tag with pressure correction factors
- Flanged connections or adapters for other pipe sizes
- Mounting brackets & panel mounts
- Electroless nickel plated bodies and/or internals for corrosive environments (other platings, coatings, or even special materials can be provided in special cases)
- Higher capacities than shown (at higher ∆P)
Selecting MEMFlo RangeMaster Flowmeters
To choose a MEMFlo Series T Flowmeter, please use the Sizing Calculators to obtain the correct equivalent flow. Find either the closest or next larger flow (whichever you prefer) in the “Designator & 100% Flow Column” of the Capacity Tables. Please review the Operating Limits in the specifications to chose a model style rated for your service conditions. To build the proper model number, please see Page 6. When ordering or requesting a quotation, please specify:
- The Fluid Name
- Density or Specific Gravity
- Operating & Maximum Pressures & Temperatures
- Flow Rate (normal, minimum & maximum)
- Desired Accessories or Options (alarms, panel mounts, pressure gages, etc.)
- Special or Unusual Considerations (viscosity, environmental factors, etc.)
