
The AirTAC Airtac GAF Filter GAF300C15W is a genuine compressed-air filter. Its diversion structure spins the air to separate liquid water and trap solid particles down to 5 µm, protecting downstream valves and tools. It has 1/2" ports and a 60 cc drain bowl. It is a filter only — it does not regulate or set pressure.
The GAF300C15W is a filter-only unit that spins incoming air to throw water and solid particles into its 60 cc metal drain bowl, while the 5 um HDPE core traps fine grain. It is not a regulator and carries no pressure gauge, so it cleans the air without attempting to control pressure.
This 1/2in model weighs 360 g and its flow curve is plotted to 6000 L/min, placing it in the GAF300 size class. The metal bowl is a build choice for the environment, and the 5 um element suits precision valves or instrument air where finer filtration matters.
| Model | Airtac GAF Filter GAF300C15W |
|---|---|
| Series | GAF300 air filter |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Bowl material | Metal |
| Drain type | Semi-auto drain + manual drain |
| Bracket | Included |
| Fluid | Air |
|---|---|
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 60 cc |
| Element | HDPE filter core |
| Weight | 360 g |
Specifications follow the official AirTAC GAF catalogue (pages 225-226). Air must not freeze in the unit. This is a filter only — it separates water and solid particles but does not set or hold a downstream pressure. To regulate pressure as well, use the matching GAFR300 filter-regulator.
| GAF300 | GA300 series air filter — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| (blank) | Mounting bracket included. |
| W | Filtering grade 5 µm. |
| (blank) | PT port thread. |
A GAF has no regulator and no pressure gauge — there is no type, gauge or reflux code. Need to regulate pressure too? The matching GAFR300-15 is the same filter with a built-in regulator.
Figures are the end of the flow curve plotted in the AirTAC catalogue — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. A filter this size drops less pressure at flow than the same-body GAFR filter-regulator, so match it to your peak demand.
| This model | GAF300 · 1/2" · curve to 6000 L/min |
|---|---|
| One size down | GAF200 |
| One size up | GAF400 (curve to 8000 L/min) |
| Add regulation | GAFR300-15 (filter + regulator) |
Feed a bank of precision pneumatic valves on a machining center, where the 5 um element stops fine grain that could cause spool sticking or pilot valve wear.
Protect sensitive instruments or flow meters on a test bench, using the 1/2in port to supply several devices while the 60 cc bowl handles condensate from a moderately wet line.
Clean the air feeding multiple assembly tools at a workstation, where the 360 g body mounts easily on a frame and the semi-auto drain suits a line that is checked daily.
Choose the GAF300 body when you need a 1/4in, 3/8in or 1/2in port with a 60 cc drain bowl, stepping up from the GAF200's 25 cc bowl if you want fewer drain checks. The metal bowl here is a material choice with the same common spec as PC or nylon, so confirm compatibility for aggressive surroundings. This unit ships with both semi-auto and manual drains, includes the mounting bracket, and uses a 5 um element for finer filtration at the cost of more frequent element service. Port threads are PT, so match your fittings accordingly. If the line also needs a set pressure, the matching GAFR300-15 adds a built-in regulator. The proof pressure of 1.5 MPa against the 0.9 MPa top of the working range gives about a 1.67x margin.
Quick checklist
This is a filter only — it removes water and solid particles but adds no pressure control and no lubrication. Add a GAR regulator, a GAL lubricator, or step up to the GAFR300-15 filter-regulator as your air-prep needs grow.
The GAF300C15W is a filter-only unit with a 5 um HDPE element, a 60 cc metal drain bowl, and a weight of 360 g. Its working pressure range is 0.15-0.9 MPa (20-130 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -5 to 70 C. The flow curve is plotted to 6000 L/min, and it uses a 1/2in PT port.
The metal bowl is a build and environment choice, not a performance upgrade. The common specification is identical for PC, nylon and metal bowls, so you should confirm compatibility for aggressive surroundings. This model also includes both semi-auto and manual drains, the mounting bracket, and a 5 um element for finer filtration.
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Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.