The ALVAMT rugged metal tube variable area meters (rotameters) are ideal for high pressure, high temperature and other demanding flow applications where safety is a concern. Features include: mechanical readouts for use in locations where power is not available or in hazardous areas; analog and digital LCD local display options, multiple process connection options; several available materials of construction for metering of aggressive fluids and corrosion resistance; and HART enabled 4-20mA output to provide for remote monitoring and control.
The ALVAMT’s excellent repeatability makes it a good choice for batching applications. For versions without electronic output, no power supply is required. The ALVAMT’s low-pressure drop provides additional value by allowing for economical pump selection.
Features
- Versatile design may be used for gas, steam, and liquids
- High resolution and fast response time; – 5 to 50 msec
- Wide temperature range from -40 up to 750 °F (-40 to 400 °C)
- High pressure operation up to 6100 psi (420 bar)
- Process connections including NPT threads, ANSI flanged, & Tri-Clamp available
- Electronics either intrinsically safe EEx ia II CT5, or Ex proof EEx d II CT6
- Wide array of materials available including Hastelloy B & C,Ti, Cu, Al, etc..
- PTFE and other liner materials available
- NIST-traceable calibration
| Process Connections: | ANSI, DIN, JIS, and sanitary flanges; NPT & BSP threads |
| Sizes: | ½ ~ 10″ (15 ~ 250mm) |
| Measuring Range: | Water (70°F) – 0.04~1320 GPM (10 ~ 300,000 l/h)Air (70°F, 14.7 psia) 0.17-2650 CFM (0.3 ~ 4,500 m³/h) |
| Temperature: | Mechanical counter: -112 to 752 °F (-80 to +400 °C)Electronic transmitter: -40 to 480 °F (-40 to +250 °C) |
| Pressure: | ½” ~ 2″ (DN15~DN50): 6100 psi (42.0MPa)3″ ~ 10″ (DN80~DN250): 580 psi (4MPa) |
| Accuracy: | Mechanical counter: ±1.5 % of rangeElectronic transmitter: ±1.0% of range |
| Turn down ratio: | Minimum 10:1 |
| Viscosity: | ½” (DN15) <30 mPa.s1″ (DN25): <250 mPa.s2″-10″ (DN50-250): <300 mPa.s |
| Metering tube: | 316/316L SS, WNR 1.4401/1.4404 6Mo, Monel,Hastelloy C,B, Titanium Gr. II, 316 SS (dual certified) with E/TFE liningPTFE: 185°F (85°C) maxHigh Temperature (H): 575 °F (300°C) |
| Hazzardous approvals: | Ex ia II CT1-T6Ex d II CT6 |
| Protection: | IP67, IP65/NEMA 4X |
| Ambient temperature: | Mechanical counter: -40 to 250 °F (-40 to 120 °C)Electronic transmitter: -40 to 140 °F (40 to 60 °C) |
| Cable entry: | M20 × 1.5, ½”G, ½”NPT, ¾”G, ¾”NPT |
| Display and electronics: | P8 Type – Stainless steel housing , dial indicating flow valueP10 Type – 2-wire (4-20)mA / HART output, Exi or Exd and alarmsP10I Type – Mechanical indicator with Exd protection,selectable switchesP10B Type- P101 indicator with LCD display and 3.6V li |
| Meter Structures: | Top enter or bottom enterRight enter, right exitLeft enter, left exitRight enter, left exitLeft enter, right exitBottom enter, right exitBottom enter, left exit |
Refer to the link for more details: https://www.smartmeasurement.com/metal-tube-variable-area-meter/
US 5493 
BR 3940 
VN 3167 
AU 1198 
TH 1129 
JP 1037 
SG 765 
MY 549 
