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Flat Face:
“A” Series Size Diagram
Female
Male
I A
A H
E J
F
G
D
HEX. C
HEX. B
DESCRIPTION
BODY
SIZE A UNIT B C D E
F
G H I
J UNIT
WEIGHT
MALE FEMALE
A4
1/8 1/8
mm 17.0 19.0 36.3 20.0 40.0 68.4 18.5 20.5 11.6 Kg 0.038 0.073
inch 0.67 0.75 1.43 0.79 1.57 2.69 0.73 0.81 0.46 lb 0.08 0.16
A7
1/4 1/4
mm 22.0 27.0 47.9 28.0 53.1 90.2 23.8 29.0 16.1 Kg 0.088 0.187
inch 0.87 1.06 1.89 1.10 2.09 3.55 0.94 1.14 0.63 lb 0.19 0.41
A9
3/8 3/8
mm 27.0 30.0 60.0 32.0 64.8 108.8 29.0 32.0 19.7 Kg 0.150 0.273
inch 1.06 1.18 2.36 1.26 2.55 4.28 1.14 1.26 0.78 lb 0.33 0.60
A9
3/8 1/2
mm 27.0 30.0 62.5 32.0 69.8 116.3 29.0 32.0 19.7 Kg 0.138 0.278
inch 1.06 1.18 2.46 1.26 2.75 4.58 1.14 1.26 0.78 lb 0.30 0.61
A13
1/2 1/2
mm 36.0 36.0 68.0 38.0 76.8 127.5 40.0 40.0 24.5 Kg 0.295 0.452
inch 1.42 1.42 2.68 1.50 3.02 5.02 1.57 1.57 0.96 lb 0.65 1.00
A13
1/2 3/4
mm 36.0 36.0 70.5 38.0 83.8 137.0 40.0 40.0 24.5 Kg 0.273 0.469
inch 1.42 1.42 2.78 1.50 3.30 5.39 1.57 1.57 0.96 lb 0.60 1.03
A15
5/8 3/4
mm 36.0 41.0 73.0 42.0 84.0 139.4 38.5 44.8 27.0 Kg 0.292 0.631
inch 1.42 1.61 2.87 1.65 3.31 5.49 1.52 1.76 1.06 lb 0.64 1.39
A17
3/4 3/4
mm 46.0 46.0 83.7 48.0 95.8 157.5 49.8 49.8 30.0 Kg 0.535 0.960
inch 1.81 1.81 3.30 1.89 3.77 6.20 1.96 1.96 1.18 lb 1.18 2.12
A17
3/4 1
mm 46.0 46.0 83.7 48.0 98.8 160.5 49.8 49.8 30.0 Kg 0.473 0.931
inch 1.81 1.81 3.30 1.89 3.89 6.32 1.96 1.96 1.18 lb 1.04 2.05
A21
1
1
mm 55.0 55.0 96.8 55.0 104.8 178.6 59.8 59.8 36.0 Kg 0.900 1.430
inch 2.17 2.17 3.81 2.17 4.13 7.03 2.35 2.35 1.42 lb 1.98 3.15
A21
1 1 1/4
mm 55.0 55.0 90.0 55.0 105.8 172.8 59.8 59.8 36.0 Kg 0.700 1.312
inch 2.17 2.17 3.54 2.17 4.17 6.80 2.35 2.35 1.42 lb 1.54 2.89
A25
1 1/4 1
mm 55.0 55.0 105.0 65.0 125.1 206.8 59.8 65.0 44.0 Kg 1.105 2.100
inch 2.17 2.17 4.13 2.56 4.93 8.14 2.35 2.56 1.73 lb 2.44 4.63
A25
1 1/4 1 1/4
mm 55.0 55.0 105.0 65.0 125.1 206.8 59.8 65.0 44.0 Kg 1.105 2.100
inch 2.17 2.17 4.13 2.56 4.93 8.14 2.35 2.56 1.73 lb 2.44 4.63
A30
1 1/2 1 1/2
mm 65.0 65.0 111.1 80.0 132.4 214.9 69.8 82.0 57.0 Kg 1.665 3.140
inch 2.56 2.56 4.37 3.15 5.21 8.46 2.75 3.23 2.24 lb 3.67 6.92
ISO 16028 Interchange Couplings
Flat Face