Ellipse® Pitot Tube Meter AF Annular Flanged Meter PTT-UM-00525-EN-02 (April 2014) User Manual
Ellipse® Pitot Tube Meter, AF Annular Flanged Meter CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User Manual INTRODUCTION The Preso patented elliptical design outperforms and provides greater accuracy than traditional differential pressure flow measurement devices. This differential pressure flow meter is designed with a series of ports facing the upstream velocity pressures, as well as flow sensing ports strategically located ahead of the trailing edge flow separation. The multi-ported, self-averaging flow element consists of an elliptical shape with two independent flow sensing chambers.
Ellipse® Pitot Tube Meter, AF Annular Flanged Meter PIPE ORIENTATION AND SENSOR MOUNTING Flow H L Field Weld 80° 80° 80° 80° Field Weld H L Flow Air and Gas Liquid Figure 1: Horizontal pipe installation Ellipse Flow Field Weld 5° MAX Flow Flo w Me ters 5° MAX NNOTE: Illustration represents installation for downward flow.
User Manual INSTALLATION INSTRUCTIONS, SINGLE SUPPORT 1. Choose the proper location to install the AF Ellipse using AGA/ASME standards (or equivalent). See “Location Instructions” on page 9. 2. Grind the surface of the pipe where the AF Ellipse is to be inserted to provide a clean area for welding. 3. Drill a hole through the pipe wall according to Table 2.
Ellipse® Pitot Tube Meter, AF Annular Flanged Meter 9. Install the instrument valves (optional) at the AF Ellipse head connections. Make sure the valves are FULLY CLOSED to prevent them from leaking during startup. INSTALLATION INSTRUCTIONS, DOUBLE SUPPORT 1. Follow steps 1 through 5 in “Installation Instructions, Single Support”. At 180° from and on the same plane as the previously drilled hole, grind the surface of the pipe to provide a clean area for welding.
User Manual INSTALLATION DRAWINGS Flow Up to 80° Up to 80° H L 3-Valve Manifold DP Transmitter or Direct Read Gage Side View Front View Figure 7: Typical horizontal installation for liquid applications DP Transmitter or Direct Read Gage 3-Valve Manifold H Up to 80° L Up to 80° Flow Side View Front View Figure 8: Typical horizontal installation for air and gas applications April 2014 Page 7
Flow Ellipse® Pitot Tube Meter, AF Annular Flanged Meter 3-Valve Manifold DP Transmitter or Direct Read Gage Front View Side View DP Transmitter or Direct Read Gage Flow Figure 9: Typical vertical installation for liquid applications 3-Valve Manifold Side View Front View Figure 10: Typical vertical installation for air and gas applications Page 8 April 2014
User Manual LOCATION INSTRUCTIONS Straight pipe requirements: Accuracy is affected by the piping configurations due to the disturbances of the flow profile. A fully developed symmetrical flow profile is achieved with the minimum upstream and downstream recommended lengths.
1 .2 2 3 2 4 3 5 6 7 8 91 0 4 10 9 8 7 20 30 2 90 80 70 60 50 40 100 3 NOTE: 2" THRU 10" CURVES ARE FOR SCH. 40 PIPE 12" AND ABOVE ARE FOR SCH. STD. PIPE .3 1 .9 .8 .7 .6 .5 .4 ∆P – I N C 6 5 O HE S Page 10 F H 2O ANNULAR ELLIPSE 4 5 6 78 9 1 0 0 3 4 5" 5 6 78 9 1 0 0 0 3" 3.5" 4" USGPM 2 2" 2.
User Manual INTENTIONAL BLANK PAGE April 2014 Page 11
Control. Manage. Optimize. PRESO is a registered trademark of Badger Meter, Inc. Other trademarks appearing in this document are the property of their respective entities. Due to continuous research, product improvements and enhancements, Badger Meter reserves the right to change product or system specifications without notice, except to the extent an outstanding contractual obligation exists. © 2014 Badger Meter, Inc. All rights reserved. www.badgermeter.
