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Brand: SMC
SMC AW20 Air Filter & Pressure Regulator
Description
Overview
The SMC AW20 filter regulator is a modular unit from SMC Series AW (sizes AW10, AW20, AW30, AW40 and AW40-06). It combines a 5 micron air filter and a direct-operated, relieving-type pressure regulator in a single body, removing condensate and solid particles from compressed air and holding a stable downstream pressure for valves, cylinders and air tools.
The AW20 is the size-20 unit of the series, with 1/8 or 1/4 port connections, and is used where a compact air preparation unit is needed upstream of a valve manifold or a single machine.
Key Features
- Filter and regulator combined in one modular unit, saving space and piping
- Nominal filtration rating of 5 micron
- Set pressure range 0.05 to 0.7 MPa (0.85 MPa on the made-to-order -X2068 version), maximum operating pressure 1.0 MPa
- Relieving-type construction
- Polycarbonate bowl, with bowl guard available as an option
- Knob lock function to hold the set pressure
Technical Specifications
| Parameter | Value |
|---|---|
| Model | SMC AW20 (Series AW) |
| Port sizes | 1/8, 1/4 (Rc, NPT, G) |
| Pressure gauge port | 1/8 |
| Fluid | Air |
| Proof pressure | 1.5 MPa |
| Maximum operating pressure | 1.0 MPa |
| Set pressure range | 0.05 to 0.7 MPa (0.85 MPa on made-to-order -X2068) |
| Ambient and fluid temperature | -5 to 60 deg C (no freezing) |
| Nominal filtration rating | 5 micron |
| Drain capacity | 8 cm3 |
| Bowl material | Polycarbonate |
| Bowl guard | Option |
| Construction | Relieving type |
| Weight | 0.21 kg (AW20-A) |
| Set pressure range, semi-standard -1 | 0.02 to 0.2 MPa |
| Body material | Aluminium die-cast |
| Bonnet material | Polyacetal |
| Filter element | AF20P-060S, non-woven fabric |
| Bowl assembly | C2SF-A (polycarbonate, drain cock) |
| Pressure gauge supplied with option G | G36-10-01 (1.0 MPa) |
| Maximum panel thickness for panel mounting | 4 mm |
Applications
- Air supply preparation for pneumatic control panels and valve manifolds
- Packaging, assembly and machine-tool pneumatic circuits
- Instrument and actuator air on utility skids in power, water and process plants
- Maintenance replacement on OEM pneumatic equipment
SMC specifies replacing the filter element every two years or when the pressure drop reaches 0.1 MPa, whichever comes first. Condensate should be drained regularly, and polycarbonate bowls must not be cleaned with solvents.
SMC AW20-A Ordering Code and Options
In the SMC catalog the code reads AW + body size + thread type + port size + options + semi-standard symbols + -A. For the example AW20-F02-A, 20 is the body size, F is G thread (blank is Rc, N is NPT), 02 is the 1/4 port (01 is 1/8), and no options are selected.
Option letters for size 20 are B (bracket), H (set nut for panel mounting), C (normally closed float-type auto drain), and G or M for a round pressure gauge with limit indicator or with colour zone. Semi-standard symbols are 1 (0.02 to 0.2 MPa setting), 2 (metal bowl), 6 (nylon bowl), C (bowl guard), J (drain guide 1/8 instead of drain cock), N (non-relieving), R (flow right to left) and Z (psi labelling, available with NPT threads). The normally open auto drain and the metal bowl with level gauge are not offered in size 20.
Options B, G, H and M are shipped loose, not assembled. Made-to-order variants are -X406 (0.4 MPa maximum setting), -X64 (long bowl) and -X2068 (0.85 MPa maximum setting).
SMC AW20-A Installation Notes
The regulator knob must be pulled to unlock before adjustment and pushed to lock afterwards; an orange mark is visible while it is unlocked. SMC warns against using tools on the knob and advises setting pressure while watching the inlet and outlet gauges. Residual pressure cannot be exhausted back to the inlet when the set pressure is 0.15 MPa or lower; a regulator with backflow function is needed for that. With the normally closed auto drain, condensate remains in the bowl when pressure is removed, so draining at the end of the day is recommended. Polycarbonate bowls must not be exposed to organic solvents, cutting oil, synthetic oil, alkalis or thread-lock fluid; SMC recommends a metal bowl where this is in doubt.
Why Seven Star LLC
Seven Star LLC supplies SMC pneumatic components, including AW series filter regulators, to plants across Oman and the GCC. The AW family comes in several sizes, thread standards and options that are not interchangeable, so we confirm the port size, thread type, pressure range and bowl option against your drawing or existing unit before quoting.
Request a Quote for SMC AW20 Air Filter & Pressure Regulator
Submit a formal inquiry through our RFQ page with the full SMC part number (for example AW20-F02-A), the port size and thread type (Rc, NPT or G), the required set pressure range, the bowl and gauge options and the quantity. Our team will confirm the correct SMC AW20 filter regulator for your pneumatic system and send a formal quotation.
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How the SMC AW20 filter regulator works
Compressed air enters the filter, where the element removes solid particles and the bowl collects condensate. The air then passes the regulator. The regulator holds the set downstream pressure and relieves excess pressure.
Where the SMC AW20 filter regulator is used
- Pneumatic control panels
- Valve manifolds
- Packaging machines
- Assembly and machine-tool circuits
- Utility skids in power, water and process plants
Selection checklist for the SMC AW20 filter regulator
- Port size and thread type
- Set pressure range
- Filtration rating
- Bowl type and guard
- Gauge option
- Mounting method
- Ambient temperature
- Drain type
Installation, commissioning and maintenance notes for the SMC AW20 filter regulator
Mount the unit with the bowl pointing down and the air flowing in the marked direction. Set the pressure with the knob and lock it. Drain the condensate regularly and do not clean the polycarbonate bowl with solvents.
Requesting a quotation for the SMC AW20 filter regulator
Please send the port size, the thread type and the quantity needed. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.
AW20 unit type
It is a modular filter regulator.
AW20 maker
It is made by SMC.
AW20 series
It belongs to Series AW with sizes AW10, AW20, AW30, AW40 and AW40-06.
AW20 size
The AW20 is the size-20 unit of the series.
AW20 single body
The filter and the regulator share a single body.
AW20 space saving
The combined unit saves space and piping.
AW20 filtration
The nominal filtration rating is 5 micron.
AW20 regulator type
The regulator is direct-operated and relieving type.
AW20 port sizes
Port sizes are 1/8 and 1/4.
AW20 thread types
Threads are Rc, NPT or G.
AW20 gauge port
The pressure gauge port is 1/8.
AW20 set pressure
The set pressure range is 0.05 to 0.7 MPa.
AW20 made-to-order version
The made-to-order -X2068 version reaches 0.85 MPa.
AW20 maximum pressure
The maximum operating pressure is 1.0 MPa.
AW20 low range
A semi-standard range of 0.02 to 0.2 MPa is available.
AW20 temperature
Ambient and fluid temperature runs from minus 5 to plus 60 degrees C without freezing.
AW20 drain capacity
The drain capacity is 8 cm3.
AW20 bowl
The bowl is polycarbonate.
AW20 bowl guard
A bowl guard is available as an option.
AW20 body material
The body is aluminium die-cast.
AW20 bonnet material
The bonnet is polyacetal.
AW20 filter element
The filter element is AF20P-060S, a non-woven fabric.
AW20 knob lock
A knob lock holds the set pressure.
AW20 weight
The AW20-A weighs 0.21 kg.
AW20 panel mounting
The maximum panel thickness for panel mounting is 4 mm.
AW20 element interval
SMC specifies changing the filter element every two years.
Air records for the SMC AW20 filter regulator
Record the set pressure, the element date and the date of each drain check.
Choosing the right SMC AW20 filter regulator option
Choose the port size, the gauge and the bowl guard from the site needs.
Datasheets & Documents
- Instruction Manual SMC AW20 Air Filter & Pressure Regulator Manual Download
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About brand
Pneumatic control components are SMC's core business: the Tokyo company, founded in 1959, makes the air preparation units, valves and actuators found on machines and instrument air lines everywhere. Seven Star LLC, an independent supplier in Oman, lists SMC AW series filter regulators (AW20 and AW40) and the VX2 series direct-operated 2-port solenoid valve, and sources other SMC parts by full part number.
SMC series listed on this page
The AW is a combined filter and pressure regulator in SMC's modular air preparation line. The body size is in the name: AW20 is the smaller unit and AW40 the larger, and the digits after the dash give the port size. A part number such as AW40-04-A therefore describes body size, port and options in one string. The VX2 is a direct-operated two-port solenoid valve for shutting off air, water, oil or steam, depending on the body and seal materials chosen.
Ordering SMC parts: what we need
Give the complete SMC part number from the label, including thread prefix, options and the final suffix letter. For AW units state gauge, drain type and bracket if you need them. For VX2 valves send coil voltage, port size, orifice, body and seal material, and the fluid. Buyers in the GCC often have NPT or G threads on site, so say which thread standard the piping uses.
Browse SMC products by category: Regulators, Solenoid Valve.
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Frequently Asked Questions
Include the full model and part number, the supply and voltage data of your system and the quantity required. Seven Star LLC matches the item against the manufacturer documentation and confirms compatibility before preparing the quotation.
Yes. Seven Star LLC supplies industrial components across Oman and the wider GCC, and the inquiry form on our website accepts requests from anywhere in the region. Our team responds with a formal quotation for your project.
Seven Star LLC supplies SMC products to customers in Oman and the GCC and can provide the manufacturer documentation and technical support on request.
Submit a formal inquiry through the RFQ page of our website with your specification. The inquiry form collects the product name, brand and category of the item, and our team responds with the pricing and availability details for your order.
Our technical team reviews the product data of your plant, confirms the configuration and advises on associated spares and installation details before your order is placed.

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