|Wyatt Lo-Loss® Flow Tubes
Fabricated Primary Elements
Flow Measurement Accuracy
Lo-Loss® is a registered trademark of Wyatt Engineering.
PMT-U Technical Specifications
For pipe Reynolds numbers greater than 100 000 and normalized piping configuration, the Lo-Loss® flow meters produce flow measurement uncertainties of:
Pressure Range/End Connections
Using venturi tubes instead of orifice plates can yield significant savings, and using the Lo-Loss® Meter instead of venturi tubes can realize even further savings. For over 40 years, engineers have given their clients the benefits of efficiency and accuracy by doing just that.
PMT-U Available Options
|Fabricated PMT units are available in four styles:PMT-U is designed to the ASME Boiler and Pressure Vessel Code. It is typically used at operating pressures less than 400 PSIG (2 750 kPaG) and temperatures less than +500 °F (+260 °C). The unique construction of the Lo-Loss® PMT-U allows for custom designs. For example, the throat can be manufactured from a specific alloy for max-imum abrasion resist-ance, while the cone can be constructed with a different alloy for corrosion resistance. For flexibil-ity, multiple pressure connections are available.
PMT-B is designed for service in which demanding process conditions require a uniquely rugged design. Machined from forged bar material, it is ideally suited for applications in which extreme temperature cycling and/or pressure cycling is encountered, such as the power industry. While the most common sizes are 6 inches (150mm) and less, the Wyatt bar stock design has been made from 27″ (685 mm) diameter bar stock material.
PMT-F is used for more demand-ing process temperatures and pressures. Its pipe-shell design can be constructed and certified to meet the requirements of B31.1 and B31.3. The PMT-F is avail-able in flanged and plain-end designs.
PMT-IF is designed for insertion within the interior of a pipeline and can be secured by companion flanges or welded directly into your pipeline. For more information on fabricated insert PMT Lo-Loss® meters, see the Wyatt Engineering PMT-IF TechBrief.
Materials of Construction
Consult your local representative or Wyatt Engineering for information on other materials of construction.