Brochure
Page 22 / Catalog OEM-1, Couplings
Step 3
Use a double tip torch to promote even
heating and reduce braze time.
Factory Brazing Instructions
Male-Half Installation Procedure
Male half (5782) should be mounted with the hex on the inside of the unit held in place with the appropriate mounting ange.
Sheet metal opening, screw hole diameter, and mounting bolt circle dimensions are included in the chart below.
Step 1
Sparingly apply paste ux to the copper
tube.
Note: Liquid flux or excessive flux
can run inside the coupling and cause
corrosion.
Step 2
Immerse the coupling diaphragm end)
into a owing cool water bath.
5780 and 5781 female halves: Water level
should be halfway up the nut and the nut
hex fully immersed.
5782 and 5783 male halves: Water level
should fully cover the threads.
Step 4
After the alloy solidies, quench the tub-
ing and coupling to reduce the tempera-
ture below 400°F. Make sure the water
does not enter the open charge port in the
5781 or 5783 half.
Step 5
The couplings can be subjected to unit
test pressures up to 300 psig. If pressures
in excess of 300 psig are used, the protec-
tor caps and plugs should be installed.
Step 6
Protector caps and plugs should be in-
stalled nger tight. Overtightening can
damage the diaphragm. The diaphragm
and O-ring can be lubricated with re-
frigerant oil prior to installing the pro-
tector caps or plugs as added assurance
of proper lubrication when connected at
unit installation.
Coupling
Part Number
Coupling
Hex Size
Recommended Sheet
Metal Opening
Flange
Part Number
Mounting
Bolt Circle
Screw Hole
Diameter
Inches mm Inches mm Inches mm
5782-Size-6 3/4" 0.656 16.6 5700-22-6 1.44 36.5 0.201 5.10
5782-Size-6 3/4" 0.656 16.6 5706-22-6 1.44 36.5 0.153 3.88
5782-Size-10 1-1/16" 1.094 27.7 FD57-1110-10 1.69 42.9 0.201 5.10
5782-Size-10 1-1/16" 1.094 27.7 FD67-1008-12 1.69 42.9 0.153 3.88
5782-Size-11 1-1/8" 1.156 29.3 150-22-8 1.69 42.9 0.201 5.10
5782-Size-11 1-1/8" 1.156 29.3 5700-22-10 1.69 42.9 0.153 3.88
5782-Size-12 1-7/16" 1.469 37.3 FD57-1110-12 2.12 53.8 0.201 5.10
5782-Size-12 1-7/16" 1.469 37.6 FD57-1111-12 2.12 53.8 0.153 3.88