Airtac GAC F.R.L. Unit GAC50020L
The AirTAC Airtac GAC F.R.L. Unit GAC50020L 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 gaugeCircular, MPa / psi
- 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 GAC50020L
Delivering cleaned, lubricated air at a strictly capped downstream pressure, the AirTAC GAC50020L is a three-unit pneumatic combination comprising a filter, regulator and lubricator. 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. This lower-pressure type restricts the working range to 0.15-0.4 MPa (20-58 psi), making it suitable for sensitive actuators, while the 3/4" port sits in a heavy 2460 g size class that demands a solid frame mount rather than tubing support.
This assembly arrives pre-plumbed on an L-shape bracket with quick mounting clamps, eliminating inter-unit tubing and cutting installation time. A circular gauge is fitted to read the set pressure in MPa/psi, matching the default PT thread. Condensate is managed by a semi-auto drain that dumps on every pressure drop alongside a manual drain, together holding 108 cc of water. The 225 cc oil bowl reduces the frequency of top-ups, and the three internal units are separately orderable as GAF500-20, GAR500-20 and GAL500-20 if only the element or bowl needs replacement.
Airtac GAC F.R.L. Unit GAC50020L Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020L |
|---|---|
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAC F.R.L. Unit GAC50020L
| 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). |
| (blank) | Circular pressure gauge fitted. |
| (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 GAC50020L Is Used
Textile Pneumatic Looms
Feeds large arrays of low-pressure air jets on weaving machines where exceeding 0.4 MPa would damage delicate yarn guides.
Carton Erecting Stations
Supplies the 3/4" main air header for multi-head carton erectors, providing steady low-pressure actuation and oil mist for moving suction cups.
Laboratory Gas Handling
Conditions instrument air for bench-scale pneumatic pumps, relying on the 40 um element to protect precision metering valves from particulate fouling.
Is the Airtac GAC F.R.L. Unit GAC50020L the Right Air-Prep Unit?
Choose this 3/4" port model for larger low-pressure circuits where the supply must be capped at 0.4 MPa, stepping up from the GAC400 which offers a smaller 100 cc drain bowl. The PC bowl is rated for the standard -5 to 70 C temperature range, but you should confirm material compatibility for aggressive chemical surroundings. If the machinery ever requires pressure above 0.4 MPa, this lower-pressure type is the wrong part, as the GAC500 is also available in a standard 0.15-0.9 MPa configuration. Because the lubricator introduces oil mist downstream, select a separate filter-regulator if your line must remain oil-free. The catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, which is roughly 1.17x the GAC400's 6000 L/min envelope. Furthermore, the 0.4 MPa ceiling is 44% of the standard type's 0.9 MPa maximum, firmly bounding the output for delicate pneumatics.
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 GAC50020L FAQ
This lower-pressure type operates at 0.15-0.4 MPa (20-58 psi). The maximum pressure is 1.0 MPa (145 psi) and the proof pressure is 1.5 MPa (215 psi). It functions in temperatures from -5 to 70 C, uses a 40 um element, and weighs 2460 g. The drain bowl holds 108 cc and the oil bowl holds 225 cc, with ISO VG 32 as the recommended lubricant.
A circular gauge is fitted to display the set pressure in MPa/psi, corresponding to the default PT thread. For condensate removal, the unit is equipped with both a semi-auto drain that expels water on each pressure drop and a manual drain for on-demand emptying, giving operators dual control over the 108 cc bowl.
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.
Related AirTAC Air-Preparation Units
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