Owner's 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.

Model / Sensor Weld Connector Drill Bit

AF0 (1/2") 3/4" 5/8"

AF (7/8") 1-1/4" 1-1/8"

AF1 (1-1/4") 1-1/2" 1-3/8"

AF2 (2-1/4") 3" 2-3/4"

Table 2: Single support drill bit size

4. Deburr the hole just drilled, especially on the inside of the pipe.

5. Weld the mounting hardware assembly to the pipe, centered on the drilled hole, using standard codes for your

application (1/16" weld gap recommended). Align low point of radius on bottom of weld-o-let so that it is in line with the

pipe centerline.

Low Point

of Radius

Low Point

of Radius

Low Point

of Radius

Horizontal

Vertical

Pipe

Centerline

Pipe

Centerline

Figure 4: Weld alignment

6. Install the gasket and place the AF Ellipse sensor into the pipe.

7. While holding the AF Ellipse in its fully inserted position, align the arrow on the sensor head with the direction of ow. See

Figure 5.

Field Weld

Flow

5° MAX

Ellipse

Flow

Flow Meters

Figure 5: Sensor alignment

8. Thoroughly tighten all of the bolts on the ange and assemble all the parts that make the instrument head.

User Manual

Page 5 April 2014