SMC AW40 Series Modular Filter Regulator (AW40-04-A)

Overview: Two Air Preparation Functions in One Compact Unit

The SMC AW40 Series Filter Regulator is a combination filter and pressure regulator that minimizes space and piping requirements by integrating two air preparation functions into a single modular unit. Rather than installing separate filter and regulator components in series, the AW40 delivers 5 micron filtration and precise pressure regulation from one compact body, reducing both the physical footprint and the piping complexity of a pneumatic system’s air preparation stage.

As an authorized supplier of SMC pneumatic components, Seven Star LLC sources and supplies the AW40 filter regulator to refineries, manufacturing plants, and general industrial facilities across Oman and the wider GCC. Because filter regulator sizing and port configuration must match the connected pneumatic circuit’s flow requirements, Seven Star LLC helps engineering teams specify the correct AW40 variant for their compressed air system.

Working Principle: Filtration and Regulated Pressure Reduction

Compressed air entering the AW40 first passes through a 5 micron filter element that removes particulate contamination and condensate before the air reaches the regulator section, protecting downstream pneumatic components (valves, cylinders, actuators) from debris and moisture damage. The regulator section then reduces and stabilizes the supply pressure to a user-set output pressure, with the AW-A series design reducing pressure drop across the regulator by up to 50% compared to earlier designs, improving overall system energy efficiency.

The maximum set pressure for the AW-A series is 100 psi, suitable for the great majority of standard pneumatic tooling and actuator applications, and the regulator knob allows fine adjustment of outlet pressure to match the specific requirement of the downstream pneumatic circuit, whether that is a delicate positioning cylinder or a more robust clamping or actuation application.

Engineering Design of the AW40

The AW40 body size accommodates 1/4, 3/8, and 1/2 inch port sizes, giving specifiers flexibility to match pipe connection size to the required flow capacity, and the element and bowl are designed as one piece, allowing element replacement to be completed by hand without special tools. The bowl is covered with a transparent bowl guard, protecting the polycarbonate bowl from the environment while still allowing 360-degree visibility of the filter element and condensate level for quick visual inspection.

Compared to earlier-generation filter regulators, the AW-A series achieves up to a 46% reduction in required maintenance space, an important consideration in control panels and machine enclosures where footprint is at a premium. Options include auto-drain configurations for condensate management without manual intervention, and pressure gauge fitting for direct visual confirmation of regulated output pressure at the unit itself.

Key Features

The SMC AW40 Series Filter Regulator delivers combined filtration and pressure regulation in a compact footprint. Key characteristics include:

• Combined 5 micron filtration and pressure regulation in a single modular unit.
• Maximum set pressure of 100 psi with reduced pressure drop (up to 50% improvement).
• One-piece element and bowl design for hand-tool-free element replacement.
• Transparent bowl guard for 360-degree visibility with environmental protection.
• Port sizes from 1/4 to 1/2 inch (body size 40).
• Up to 46% reduction in required maintenance space versus earlier designs.
• Optional auto-drain and pressure gauge configurations.

Industrial Applications

The AW40 is deployed across manufacturing pneumatic tooling, refinery instrument air systems, and general industrial compressed air circuits wherever clean, regulated air supply is required for pneumatic actuators, valves, or tools. Its combination design makes it a standard specification component for machine builders and plant engineers looking to minimize air preparation footprint without compromising filtration or pressure regulation quality.

Seven Star LLC supports manufacturing plants, refinery instrumentation teams, and industrial facility maintenance departments across Oman, Muscat, Sohar, and the broader GCC region with sourcing of SMC AW40 filter regulators, helping projects maintain clean, properly regulated compressed air supply.

Technical Specifications

The table below summarizes the core specifications of the SMC AW40 Series Filter Regulator as supplied by Seven Star LLC.

Call To Action

Seven Star LLC supplies the SMC AW40 Series filter regulator with full manufacturer documentation and regional technical support. Contact our pneumatics division for a formal B2B quotation, to confirm the correct port size and options for your compressed air system, or to obtain the complete technical datasheet. Seven Star LLC ensures every unit shipped across Oman and the GCC is genuine SMC hardware, correctly specified, and backed by local support.