Dwyer PE and TE Series was designed for use wherever there is an application for a conventional flow orifice plate. It can also be used in place of other primary differential producers for efficiency and cost-effectiveness. The Series PE is available in line sizes from 1/2″ to 24″ and used for air and most gases. It meets or exceeds ASME, AGA & ISO standards.

The Series PE Orifice Plate Flow Meter offers one-piece PVC construction incorporating a unique holder or carrier ring containing metering taps and integral gaskets. Unlike a standard orifice plate, the Series PE is a true primary element including the various components for differential pressure measurement.

The Series TE Orifice Plate Flow Meter offers one-piece PTFE construction similar to the OP and PE Series orifice plates, which incorporate a unique holder or carrier ring containing metering taps and integral gaskets. Available for line sizes from 1/2″ to 24″, the Series TE orifice plate can be used with gases, liquids, corrosive, and high-temperature fluids.

The Series TE can be easily installed by slipping the unit between standard flanges (orifice flanges are not required). The Series TE was designed for use anywhere there is an application for a conventional flow orifice plate. It can also be used in place of other primary differential producers for efficiency and cost-effectiveness.

Dwyer PE and TE Series Features

Series PE:

  • Mounted with standard flanges
  • Standard “corner tap” configuration
  • Corrosion free material
  • Simplified installation
  • Built in metering taps (1/4″ female NPT STD)
  • Proven through a wide range of applications for accuracy and energy efficiency
  • Assures long term reliability and accuracy

Series TE:

  • Excellent chemical resistance
  • Weather resistant
  • Flame retardant (without factory gaskets)
  • Low friction (minimum wear)
  • Orifice plate thickness 1/4″ offering greater stability

Application

  • Fluid flow rates in building water lines
  • Boiler feed water
  • Cooling water
  • Combustion or compressed air
  • Steam flow
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Dwyer PE and TE Series Specification

Service PE: Clean air and compatible gases; TE: Compatible gases and liquids.
Wetted Material Monolithic (single piece) constructed entirely of gray PVC for PE or white PTPE for TE, Buna-N gaskets.
Accuracy ±0.6% full scale flow. (Beta= .2-.6) ±0.7% for Beta greater than .6.
Temperature Limits PE: 140°F (60°C) max; TE: -40 to 200°F (-40 to 93.3°C).
Pressure Limits 150 psi (10 bar) max.
Head Loss 1 – Beta ratio², eg: 1 – 07² = 1 – 0.49 = 51% of the d.p.
Line Sizes 1/2″ to 24″.
Process Connections 1/4″ female NPT.
Installation Standard flange 125#/150# rating.
Pipe Requirements General requirements 10 diameter upstream and 5 diameter downstream.
Weight Varies with line size.

Download Data Sheet: Series PE & TE Orifice Plate Flow Meters

Ref: dwyer-inst.com