model Tx mulitple flow tube PTFE meters
Model Tx Multiple Tube PTFE-Glass flow meters combine the convenience of multiple tube meters with the unique design features of single tube PTFE-Glass flow meters. These meters are available with the same interchangeable 65mm or 150mm glass flow tubes used in single tube designs and they are available with or without built-in PTFE needle valves. Wetted inert components are surrounded by structurally rigid anodized aluminum. The resultant design represents a unique combination of a rugged mechanically rigid frame and chemically inert wetted parts.
They are ideal for applications where several streams of corrosive gases or liquids are to be metered in individual channels or as a controlled mixer in manifolded models.
BUILT-IN VALVESMeters are available with built-in needle valves (CVT™ ), high precision metering valves (HRT™) with “non-rising stems”, or with no valves. The higher cost of HRT™ valves is justified whenever high sensitivity control and resolution are desirable particularly in conjunction with metering tubes of very low flowrates.
When meters with valves are ordered the valve cartridges are installed at the inlet. For vacuum service it is recommended that meters are ordered with valves at the outlet.
| SPECIFICATIONS |
| STANDARD ACCURACY ±2% FS (mm scales - except 042 flow tubes); ±5% FS (direct reading scales and 042 mm) |
| CALIBRATED ACCURACY ±1% FS |
| REPEATABILITY ±0.25% FS |
| USEFUL FLOW RANGE 10:1 minimum with one float |
| MAXIMUM OPERATING PRESSURE 100 psig (6.7 bars) |
| MAXIMUM OPERATING TEMPERATURE 150°F (65°C) |
| LEAK INTEGRITY individually pressure and leak tested and certified to a rating of 1x10-7 sccs helium |
| MATERIALS OF CONSTRUCTION |
| FLOW TUBES heavy walled borosilicate glass (glass or sapphire floats recommended) |
| FITTINGS IN CONTACT WITH FLUIDS virgin PTFE and PCTFE |
| SIDE PANELS aluminum, black anodized |
| FRONT SHIELD 1/8 inch thick clear |
| BACK PLATE 1/8 inch thick white acrylics |
| O-RINGS PTFE |
| CONNECTIONS 1/8 inch NPT female inlet and outlet connections; optional glass hose nipples or compression fittings are available |
T / Tx meter literature model T (single flow tube) and Tx (multi flow tube) - PTFE rotameter catalog page(s)
Technical Information (Rotameter)
- Valve Flow Capacities
- Metering Sizing
- Calculation vs Calibration
- Table of Standard Flow Capacities
- Table of Direct Reading Scales
- Common Equivalents and Conversions
Rotameter Catalog Full line Rotameter and Valves Catalog EM200710
Thermal Mass Flow Catalog Full line Mass Flow and electric Valves Catalog EM200710
Secure Login 
