Airtac GAC F.R.L. Unit GAC50020LN
The AirTAC Airtac GAC F.R.L. Unit GAC50020LN 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 materialPC
- 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 GAC50020LN
Delivering cleaned, regulated and lubricated air for medium-to-large pneumatic setups, this GAC50020LN unit combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 2460 g body mass, requiring a solid frame mount rather than tubing support. Air passes through the 40 um filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls.
Configured for low-pressure duties, the regulator operates within 0.15-0.4 MPa (20-58 psi). Because the N follows the port, no gauge is supplied, though a 1/4in gauge connection allows adding one later to read the set pressure. The PC bowl holds 108 cc of condensate and 225 cc of oil, extending the interval between maintenance visits.
Airtac GAC F.R.L. Unit GAC50020LN Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020LN |
|---|---|
| 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 | PC |
| 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 GAC50020LN
| GAC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. 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 GAC50020LN Is Used
Textile Machinery
Feeds low-pressure air to loom cylinders and weaving actuators that require a gentle 0.15-0.4 MPa operating range alongside consistent oil mist.
Carton Erectors
Conditions air for large-format folding and sealing arms, utilizing the 3/4in port to maintain adequate flow during rapid box-forming cycles.
Pneumatic Presses
Regulates delicate pressing force on light assembly lines, relying on the 108 cc drain bowl to capture moisture from continuous daily operation.
Is the Airtac GAC F.R.L. Unit GAC50020LN the Right Air-Prep Unit?
Choose this 3/4in assembly for systems needing a strict 0.15-0.4 MPa (20-58 psi) ceiling, avoiding it entirely if machinery might ever require higher actuation force. It carries a semi-auto and manual drain pair, discharging condensate on pressure drops or demand. If the downstream line must remain oil-free, select a filter-regulator instead and omit the lubricator. Replacement spares share the 500-20 suffix: GAF500-20, GAR500-20 and GAL500-20.
Stepping down, the GAC400 flow curve is plotted to 6000 L/min at 0.7 MPa inlet versus this body's 7000 L/min, making the larger unit better for higher demand. Keep in mind that 0.4 MPa is 44% of the standard 0.9 MPa ceiling, firmly capping the output pressure for sensitive applications.
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 GAC50020LN FAQ
This lower-pressure type operates at 0.15-0.4 MPa (20-58 psi) with a max pressure of 1.0 MPa (145 psi) and a 1.5 MPa (215 psi) proof pressure. The temperature range is -5 to 70 C, and it uses a 40 um element. It features a 108 cc drain bowl, a 225 cc oil bowl, weighs 2460 g, and requires ISO VG 32 lubricant.
The N after the port code indicates no gauge is supplied. To read the downstream setting, a separate gauge must be fitted to the 1/4in gauge connection on the body. The default PT thread dictates an MPa/psi scale if a gauge is added.
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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