Lett Copper Fittings

Product Description

lett_fittings-sekil

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.

ASTM B88 Copper Fittings Production Standard (High Pressure Series) Thickness is same as ASTM B88 “L” Type

O.D. Size Female Connector
Tolerance
Female Connector Lenght 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

ASME 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

EN1254-1 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