Airtac GAC F.R.L. Unit GAC500N20ALNWK
The AirTAC Airtac GAC F.R.L. Unit GAC500N20ALNWK is a genuine three-unit F.R.L. combination — a filter, a pressure regulator and a lubricator pre-assembled on one bracket with quick mounting clamps. It has 3/4" ports, a 5 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialNylon
- Drainautomatic
- Pressure gaugeNot fitted
- Weight2460 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAC F.R.L. Unit GAC500N20ALNWK
Delivering cleaned, regulated and lubricated air for demanding pneumatic setups, this AirTAC F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. It features a 3/4in port, a 5 um element for fine particle capture, and operates at 0.15-0.4 MPa (20-58 psi). The sequence ensures air passes through the filter first, then the regulator, before oil mist is added downstream so the regulator seat never gets fouled.
This specific configuration uses a nylon bowl and an automatic drain to clear condensate without an operator, which is decisive for unattended or wet lines. The unit carries the reverse-flow (reflux) valve, shown as a separate pneumatic symbol in the catalogue, and ships without a gauge. If reading the set pressure is required, a gauge can be added to the 1/4in connection. The 108 cc drain bowl and 225 cc oil bowl dictate the service interval, meaning fewer interventions than smaller bodies.
Airtac GAC F.R.L. Unit GAC500N20ALNWK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500N20ALNWK |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Nylon |
| Drain type | Automatic drain |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 108 cc |
| Capacity of oil bowl | 225 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 2460 g |
Specifications follow the official AirTAC GAC catalogue (pages 216-217). Air must not freeze in the unit. No gauge is supplied with this model — the gauge connection on a GAC500 is 1/4" if you add one.
Model Code: Airtac GAC F.R.L. Unit GAC500N20ALNWK
| GAC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 20 | Port size 3/4". This body offers 20 = 3/4". |
| A | Drain: Automatic drain. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| N | No pressure gauge; 1/4" gauge connection. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
Constituent units, orderable separately as spares: GAF500-20 filter, GAR500-20 regulator, GAL500-20 lubricator — all three share this body and port.
Size Class & Flow Envelope
- GAC2001/8"-1/4" · 1750 L/min
- GAC3001/4"-1/2" · 3000 L/min
- GAC4003/8"-1/2" · 6000 L/min
- GAC5003/4" · 7000 L/min
- GAC6003/4"-1" · 12000 L/min
Figures are the end of the flow curve plotted in the AirTAC catalogue at 0.7 MPa inlet pressure — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. Outlet pressure falls as flow rises, so size a body with headroom above your peak demand.
| This model | GAC500 · 3/4" · curve to 7000 L/min |
|---|---|
| One size down | GAC400 |
| One size up | GAC600 (curve to 12000 L/min) |
| Build order | Filter → bracket → regulator → lubricator |
Where the Airtac GAC F.R.L. Unit GAC500N20ALNWK Is Used
Textile Manufacturing Lines
Feeds low-pressure air to looms and spinning frames where a 5 um element protects delicate air-jet nozzles from clogging.
Carton Erecting Machines
Provides steady 0.4 MPa lubricated air to continuous motion packaging equipment, utilizing the automatic drain during prolonged wet shifts.
Palletizing Robots
Conditions air for gripper actuators on 3/4in distribution headers, ensuring smooth movement without fouling internal seals.
Is the Airtac GAC F.R.L. Unit GAC500N20ALNWK the Right Air-Prep Unit?
Choose this 2460 g unit for 3/4in lines requiring low-pressure regulation up to 0.4 MPa. The 5 um element traps far finer particles than the standard 40 um grade, suiting precision valves, but requires more frequent element service. Because the lubricator adds oil mist downstream, select a filter-regulator instead if the line must remain oil-free. The three units are separately orderable as GAF500-20, GAR500-20 and GAL500-20, so a damaged bowl does not require replacing the whole assembly. Stepping down to the GAC400 body drops the plotted flow envelope from 7000 L/min to 6000 L/min at 0.7 MPa inlet, while the L-type pressure ceiling of 0.4 MPa is 44% of the standard 0.9 MPa maximum.
Quick checklist
- ✓ Body size for your peak flow (3/4" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Thread & gauge scale (PT / G / NPT)
Installation & Maintenance Notes
- check Install with the airflow arrow: filter first, lubricator last.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Fill the oil bowl with ISO VG 32 or equivalent only.
- check Drain condensate before the 108 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 2460 g unit on its bracket, not on the tubing.
The lubricator adds an oil mist downstream of the regulator. If any part of the line must stay oil-free, use a filter-regulator instead of an F.R.L. combination on that branch.
Airtac GAC F.R.L. Unit GAC500N20ALNWK FAQ
This lower-pressure type operates at 0.15-0.4 MPa (20-58 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The temperature range is -5 to 70 C, the drain bowl holds 108 cc, the oil bowl holds 225 cc, the unit weighs 2460 g, and the recommended lubricant is ISO VG 32.
The N in the ordering code indicates no gauge is supplied. The body features a 1/4in gauge connection, allowing operators to install a separate gauge reading MPa/psi for the default PT thread if they need to monitor the 0.15-0.4 MPa outlet setting.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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