Max.
Step 2: Remove burrs
Burrs can aect the air-tight seal of refrigerant
piping connection. They must be completely
removed.
Pipe
Reamer
Point down
Step 3: Flare pipe ends
Proper flaring is essential to achieve an airtight
seal.
Flare nut
Copper pipe
PIPING EXTENSION BEYOND FLARE FORM
Outer Diameter of
Pipe (mm)
A (mm)
Min. Max.
Ø 6.35 (Ø 1/4”)
0.7 (0.0275”) 1.3 (0.05”)
Ø 9.52 ( Ø 3/8”)
1.0 (0.04”)
1.6 (0.063”)
Ø12.7 ( Ø 1/2”) 1.0 (0.04”) 1.8 (0.07”)
Ø 16 ( Ø 5/8”)
Ø 19 ( Ø 3/4”)
2.0 (0.078”) 2.2 (0.086”)
2.0 (0.078”) 2.4 (0.094”)
Flare form
Pipe
A
26
Hold the pipe at a downward angle to prevent
burrs from falling into the pipe.
Using a reamer or deburring tool, remove all
burrs from the cut section of the pipe.
After removing burrs from cut pipe, seal
the ends with PVC tape to prevent foreign
materials from entering the pipe.
Sheath the pipe with insulating material.
Place flare nuts on both ends of pipe. Make
sure they are facing in the right direction,
because you can’t put them on or change
their direction after flaring.
Remove PVC tape from ends of pipe when
ready to perform flaring work.
Clamp flare form on the end of the pipe.
The end of the pipe must extend beyond the
edge of the flare form in accordance with the
dimensions shown in the table below.
Place flaring tool onto the form.
Turn the handle of the flaring tool clockwise
until the pipe is fully flared.
Remove the flaring tool and flare form, then
inspect the end of the pipe for cracks and
even flaring.
MUST BE CHECK OVER THE END OF THE PIPE FOR CRACKS AND EVEN
FLARING. ENSURE THE PIPE IS SEALED.
CAUTION
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
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