
The AirTAC Airtac GAF Filter GAF500C20JW 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 3/4" ports and a 108 cc drain bowl. It is a filter only — it does not regulate or set pressure.
The GAF500C20JW is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 108 cc metal drain bowl, while the 5 um HDPE element traps fine grain. It protects downstream valves, cylinders and tools from contamination without any pressure regulation function.
This 3/4in port model weighs 680 g and uses a metal bowl with both semi-auto and manual drains fitted. The 5 um element suits precision applications, and the unit operates from 0.15-0.9 MPa (20-130 psi) with a proof pressure of 1.5 MPa (215 psi).
| Model | Airtac GAF Filter GAF500C20JW |
|---|---|
| Series | GAF500 air filter |
| Port size | 3/4" (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 | Not included (J) |
| Fluid | Air |
|---|---|
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 108 cc |
| Element | HDPE filter core |
| Weight | 680 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 GAFR500 filter-regulator.
| GAF500 | GA500 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). |
| 20 | Port size 3/4". This body offers 20 = 3/4". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| J | No bracket (J) — supplied without the mounting bracket. |
| 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 GAFR500-20 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 | GAF500 · 3/4" · curve to 9000 L/min |
|---|---|
| One size down | GAF400 |
| One size up | GAF600 (curve to 12000 L/min) |
| Add regulation | GAFR500-20 (filter + regulator) |
Protect solenoid valves and feed cylinders on CNC machines from water and scale in the compressed air supply, where the 5 um element prevents fine abrasive wear.
Feed air gauges and measurement fixtures with filtered air, using the 5 um element to keep particulate from affecting precision readings.
Clean the air feeding pneumatic atomization equipment in finishing lines, where water droplets would ruin the coating finish.
Choose the GAF500 body for 3/4in port lines that need substantial condensate handling; its 108 cc bowl holds about 1.7x the condensate of the GAF400's 100 cc bowl, meaning fewer drain checks in service. The metal bowl suits demanding environments, though confirm compatibility for aggressive surroundings since no chemical data is printed. This model ships without the mounting bracket (J), so plan for panel mounting or use an existing bracket. The 5 um element (W) traps finer particles than the standard 40 um, at the cost of more frequent element service. The PT thread standard must match your fittings; no gauge is involved. For lines that also need a set pressure, the matching GAFR500-20 adds a built-in regulator, while this GAF only filters. With a proof pressure of 1.5 MPa against the 0.9 MPa working maximum, the safety margin is about 1.67x.
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 GAFR500-20 filter-regulator as your air-prep needs grow.
This filter-only unit has a 5 um filtering grade, a working pressure range of 0.15-0.9 MPa (20-130 psi), a proof pressure of 1.5 MPa (215 psi), and a temperature range of -5 to 70 C. It has a 108 cc drain bowl and weighs 680 g, with a flow curve plotted to 9000 L/min.
The C code specifies a metal bowl, which is a build choice for the environment; no temperature or impact data is printed, so confirm compatibility for aggressive surroundings. The J code means the mounting bracket is omitted, so you must use a panel mount or an existing bracket. This model also has both semi-auto and manual drains fitted.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.