Series AS3
Maintenance units and components
The Aventics Series AS3 covers G 1/8 to G 1/2 port sizes rated to 16 bar. The range includes filters (AS3-FLS, AS3-FLP), 2/2- and 3/2-way valves (AS3-SOV), charge units (AS3-SSU) for pressure-safe start-up, and 2-part maintenance units (AS3-ACD) combining filter and pressure regulator. The M12 connector version of AS3-SOV valves allows direct connection to decentralised fieldbus I/O modules.
AS3-SSU charge units are available in electrical (24 VDC, 110/230 VAC, PVN, SOE) and pneumatic (PNE, 3/2 function) versions. Combined 2-part units AS3-ACD join filter and pressure regulator in a single housing for G 3/8 and G 1/2 with inlet pressures up to 80 bar and various bowl configurations (PBP, PBS, AO/HO/AC).
| Type | Function | Port / Key feature |
|---|---|---|
| AS3-FLS | Filter | G 1/8-G 1/2, 5 µm, SSS/PBP bowl, HO/AO/AC drain |
| AS3-FLP | Pre-filter | G 3/8, 0.3 µm, PBP, HO/AO drain |
| AS3-SOV | 3/2-way valve | G 1/8-G 3/8; elec. 24V/110V/230V/PVN, M12; pneum.; CNOMO |
| AS3-SSU | Charge unit | G 1/8; elec. 24V/110V/230V/PVN/SOE; pneum. PNE; 3/2 function |
| AS3-ACD | 2-part maintenance unit | G 3/8, G 1/2; up to 80 bar inlet; filter + regulator GAU combined |
The AS3 series suits installations where pressure-safe start-up of the downstream circuit is required. The AS3-SSU with SOE output (electrically controlled switching valve) feeds the switch status back to the controller. For machines with CNOMO interfaces (automotive industry), SOV versions with a PVC-CNOMO control plate are available. AS3-ACD combination units with up to 80 bar inlet pressure are suited for direct connection to mid-size compressor outlets.
Typical applications: Pressure-safe start-up of compressed-air circuits in manufacturing machines and transfer systems, isolation and anti-start protection in robot cells and handling systems, compressed-air preparation for control units and valve islands with G 1/8-G 1/2 ports, automotive industry with CNOMO machine interfaces, and high-pressure inlet up to 80 bar directly at the compressor.