Airtac GAC F.R.L. Unit GAC500C20LN
The AirTAC Airtac GAC F.R.L. Unit GAC500C20LN 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 40 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 grade40 µm
- Bowl materialMetal
- Drainsemi-auto + manual
- 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 GAC500C20LN
Delivering cleaned, regulated and lubricated air for demanding pneumatic setups, this AirTAC unit combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves lines needing a lower operating pressure of 0.15-0.4 MPa (20-58 psi), while the 40 um element captures solid contaminants before they reach downstream valves. Because the lubricator sits last in the sequence, oil mist is introduced downstream of the regulator seat, preventing fouling of the pressure-control mechanism.
Weighing 2460 g, the body requires a firm panel or frame mount rather than support from the tubing alone. The metal bowl equips this assembly for rugged industrial environments, and the 108 cc condensate sump paired with a 225 cc oil reservoir sets the maintenance interval. No gauge is supplied, but a 1/4in connection is ready if you need to add instrumentation to verify the downstream setting.
Airtac GAC F.R.L. Unit GAC500C20LN Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20LN |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Metal |
| Drain type | Semi-auto drain + manual 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 GAC500C20LN
| GAC500 | GA500 series F.R.L. unit — sets ports, 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. |
| 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. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
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 GAC500C20LN Is Used
Textile Machinery
Feeds low-pressure air looms and spinning frames where delicate yarn handling requires a regulated 0.4 MPa supply and consistent oil mist for sliding components.
Carton Folding Lines
Conditions air for pneumatic folding arms and glue guns that operate below 0.4 MPa, ensuring smooth actuation without overpowering light cardboard materials.
Bulk Material Handling
Supplies air to low-pressure diverters and sorting gates on package conveyors, using the 3/4in port to maintain adequate volume for multiple downstream cylinders.
Is the Airtac GAC F.R.L. Unit GAC500C20LN the Right Air-Prep Unit?
Choose this lower-pressure variant when your equipment strictly operates within 0.15-0.4 MPa (20-58 psi), as the internal spring is optimized for that narrow band rather than the standard 0.15-0.9 MPa range. The semi-auto and manual drain pair handles condensate removal, emptying the 108 cc bowl either on pressure drop or by hand. If your line must remain completely oil-free, omit the lubricator and select a dedicated filter-regulator instead. Replacement spares share the exact 500-20 suffix: order GAF500-20, GAR500-20 and GAL500-20 individually as needed. Stepping down to the GAC400 drops the plotted flow envelope from 7000 L/min to 6000 L/min at 0.7 MPa inlet, whereas moving up to the GAC600 provides a 12000 L/min envelope. The lower-pressure type tops out at 0.4 MPa, which is 44% of the standard 0.9 MPa ceiling.
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 GAC500C20LN FAQ
This lower-pressure F.R.L. combination 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 filtering grade is 40 um, and the recommended lubricant is ISO VG 32. It features a 108 cc drain bowl, a 225 cc oil bowl, and weighs 2460 g.
The N in the product code indicates no gauge is supplied from the factory. The body features a 1/4in gauge connection, allowing you to install a compatible PT-thread gauge reading in MPa/psi to monitor your specific 0.15-0.4 MPa downstream setting.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC Air-Preparation Units
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