Overall dimensions and technical information are provided solely for informative purposes and may be modified without notice Air service units 2 | 77 Series Airplus - Accessories 2 Air treatment ►Aluminium flanges Flange Y L1 L3 D2 L2 L3 D2 L7 B2 L6 B1 B3 Flange X B1 B2 B3 Model B1 B2 B3 D2 L1 L2 L3 L6 L7 N171Y 7,8 47,7 45,7 Ø 4,5 14 80 3 95 30,5 N171X 34,4 / / / / / / N172Y 9,7 64,6 55,6 Ø 5,2 18 95 6,8 117,9 40,5 N172X 55,6 / / / / / / N173Y 9,7 75,5 56 Ø 5,2 18 110 6,8 133 44,5 N173X 62 / / / / / / N174Y 13,7 106,5 102 Ø 8,5 25 148 6,5 175 64 N174X 85 / / / / / / ►Size adapters D1 D2 B1 Model Fits B1 D1 D2 N1713A Size 1 → Size 3 9 25.9 39.9 N1723A Size 2 → Size 3 9.5 32.9 Type X flange, size 3, technopolymer version Adapter for size 2 with size 3 (O-ring including) – N1723A Type Y mounting flange, size 2, technopolymer version Example configuration of adapter connecting size 2 with size 3 Example configuration of adapter connecting size 1 with size 3 Type Y mounting flange, size 1, aluminum version with extension Type X flange, size 3, aluminum version Adapter for size 1 with size 3 (O-ring including) – N1713A
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