COPPER FITTINGS

model :
Cooper Fittings

Many of our competitors gradually shortening the lenght of the fittings in their production with the thinking of the provide copper savings. However, this kind of production causes failure to comply with the standarts and also leads to many problems in practice.

As you know, copper fittings contains a little place in the system hence of their measures, but they undertake important tasks. Lett fittings quality and conformity to standards are guaranteed the protection of our valuable customers in their manufacturing applications.

Product Description

Many of our competitors gradually shortening the lenght of the fittings in their production with the thinking of the provide copper savings. However, this kind of production causes failure to comply with the standarts and also leads to many problems in practice.

As you know, copper fittings contains a little place in the system hence of their measures, but they undertake important tasks. Lett fittings quality and conformity to standards are guaranteed the protection of our valuable customers in their manufacturing applications.

 

ASMEE B16.22 Min Thickness List

O.D.
size		 Female
Connector
Tolerance		 Female
Connector
Length		 Male
Connector
Tolerance		 Male
Connector
Length		 Min.
Thickness
Min Max Min Max
3/16 4.76 4.81 4.91 6 4.71 4.79 7 0.45mm
1/4 6.35 6.40 6.50 6.5 6.30 6.38 8 0.48mm
5/16 7.94 7.99 8.09 7 7.89 7.97 8.5 0.52mm
3/8 9.53 9.58 9.68 8 9.47 9.55 10 0.58mm
1/2 12.7 12.75 12.85 10 12.62 12.73 11 0.66mm
5/8 15.88 15.93 16.03 13 15.80 15.90 14.5 0.74mm
3/4 19.05 19.10 19.20 16 18.97 19.08 17.5 0.79mm
7/8 22.23 22.28 22.38 19 22.15 22.26 20.5 0.84mm
1 25.4 25.45 25.55 20 25.32 25.43 21.5 0.95mm
1-1/8 28.58 28.65 28.75 23 28.50 28.63 24.5 1.02mm
1-1/4 31.75 31.82 31.92 24 31.67 31.80 25 1.1mm
1-3/8 34.93 35.00 35.10 25 34.85 34.98 26 1.12mm
1-1/2 38.1 38.17 38.30 26 37.99 38.15 27 1.2mm
1-5/8 41.28 41.35 41.48 27.7 41.17 41.33 29.5 1.3mm
1-3/4 44.45 44.52 44.65 29 44.34 44.50 31 1.4mm
2-1/8 53.98 54.05 54.18 34 53.87 54.03 36 1.5mm
2-5/8 66.68 66.75 66.88 37 66.57 66.73 39 1.7mm
3 76.2 76.27 76.40 40 76.09 76.25 42 1.8mm
3-1/8 79.38 79.45 79.58 42 79.27 79.43 44 1.91mm
3-5/8 92.08 92.15 92.28 48.5 91.97 92.13 50 2.18mm
4-1/8 104.78 104.85 104.98 55 104.67 104.83 56.5 2.44mm
5-1/8 130.18 130.25 130.38 67.5 130.07 130.23 69 2.82mm
6-1/8 155.58 155.65 155.78 78.5 155.47 155.63 81.8 3.15mm
8-1/8 206.38 206.45 206.58 100.8 206.22 206.43 104 4.39mm

 

EN 1254-1 Min Thickness List

O.D. Female
Connector
Tolerance		 Female
Connector
Length		 Male
Connector
Tolerance		 Male
Connector
Length		 Min.
Thickness
Min Max Min Max
6 6.06 6.15 5.80 5.95 6.04 7.80 0.6 mm
8 8.06 8.15 6.80 7.95 8.04 8.80
10 10.06 10.15 7.80 9.95 10.04 9.80
12 12.06 12.15 7.80 11.95 12.04 9.80
14 14.06 14.15 8.60 13.95 14.04 10.60
14.7 14.76 14.85 10.60 14.65 14.74 12.60 0.7 mm
15 15.06 15.15 10.60 14.95 15.04 12.60
16 16.06 16.15 10.60 15.95 16.04 12.60
18 18.06 18.15 12.60 17.95 18.04 14.60 0.8 mm
21 21.07 21.18 15.40 20.94 21.05 17.40 0.9 mm
22 22.07 22.18 15.40 21.94 22.05 17.40
25 25.07 25.18 16.40 24.94 25.05 18.40
27.4 27.47 27.58 18.40 27.34 27.45 20.40
28 28.07 28.18 18.40 27.94 28.05 20.40
34 34.09 34.23 23.00 33.93 34.06 25.00 1 mm
35 35.09 35.23 23.00 34.93 35.06 25.00
40 40.09 40.23 27.00 39.93 40.06 29.00 1.1 mm
40.5 40.59 40.73 27.00 40.43 40.56 29.00
42 42.09 42.23 27.00 41.93 42.06 29.00
53.6 53.69 53.83 32.00 53.53 53.66 34.00 1.2 mm
54 54.09 54.33 32.00 53.93 54.06 34.00
64 64.10 64.33 32.50 63.92 64.07 34.50 1.4 mm
66.7 66.80 67.03 33.50 66.62 66.77 36.50
67 66.80 67.33 66.92 67.07
70 70.10 70.33 33.50 69.92 70.07 36.50
76.1 76.20 76.43 33.50 76.02 76.17 36.50 1.6 mm
80 80.10 80.33 35.50 79.92 80.07 38.50 1.8 mm
88.9 89.00 89.23 37.50 88.82 88.97 40.50
106 106.10 106.33 47.50 105.92 106.07 51.50 2.1 mm
108 108.10 108.33 47.50 107.92 108.07 51.50
133 2.5 mm

 

ASTM B88 Copper Fittings Production Standart (High Pressure Series)

Thickness is same as ASTM B88 “L” type

O.D.
Size		 Female
Connector
Tolerance		 Female
Connector
Length		 Male
Connector
Tolerance		 Male
Connector
Length		 Minimum
Thickness
Min
(mm)		 Max
(mm)		 (mm) Min
(mm)		 Max
(mm)		 (mm) (mm)
3/8 9.58 9.68 8 9.47 9.55 10 0.76
1/2 12.75 12.85 10 12.62 12.73 11 0.89
5/8 15.93 16.03 13 15.88 15.9 14.5 1.02
3/4 19.1 19.2 16 18.97 19.08 17.5 1.07
7/8 22.28 22.38 19 22.15 22.26 20.5 1.14
1-1/8 28.65 28.75 23 28.5 28.63 24.5 1.27
1-3/8 35 35.1 25 34.85 34.98 26 1.40
1-5/8 41.35 41.48 27.7 41.17 41.33 29.5 1.52

 

R410A High Pressure Copper Fittings

O.D.
Size		 Female
Connector
Tolerance		 Female
Connector
Length		 Male
Connector
Tolerance		 Male
Connector
Length		 Minimum
Thickness
Min
(mm)		 Max
(mm)		 (mm) Min
(mm)		 Max
(mm)		 (mm) (mm)
1/4 6.4 6.5 6.5 6.3 6.38 8 0.81
3/8 9.58 9.68 8 9.47 9.55 10 0.81
1/2 12.75 12.85 10 12.62 12.73 11 0.81
5/8 15.93 16.03 13 15.88 15.9 14.5 1.02
3/4 19.1 19.2 16 18.97 19.08 17.5 1.14
7/8 22.28 22.38 19 22.15 22.26 20.5 1.4
1-1/8 28.65 28.75 23 28.5 28.63 24.5 1.83
1-3/8 35 35.1 25 34.85 34.98 26 2.03
1-5/8 41.35 41.48 27.7 41.17 41.33 29.5 2.41

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