Airtac GAC F.R.L. Unit GAC50020ALNW
The AirTAC Airtac GAC F.R.L. Unit GAC50020ALNW 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 materialPC
- 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 GAC50020ALNW
Delivering cleaned, regulated and lubricated air for demanding pneumatics, this GAC50020ALNW assembly integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves heavy-duty circuits, while the 5 um element captures fine particulates before they reach sensitive valves. Because the lubricator sits last in the sequence, oil mist is injected downstream of the regulator seat, preventing fouling of internal components.
This specific configuration carries an automatic drain on its 108 cc condensate bowl, discharging water without an operator whenever pressure drops. It is built for the lower pressure range of 0.15-0.4 MPa (20-58 psi) and ships without a gauge; the 1/4in gauge connection allows a pressure indicator to be added later if required. At 2460 g, the unit requires firm panel or frame mounting rather than tubing support.
Airtac GAC F.R.L. Unit GAC50020ALNW Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020ALNW |
|---|---|
| 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 | PC |
| 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 GAC50020ALNW
| 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". |
| 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. |
| (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 GAC50020ALNW Is Used
Textile Manufacturing Lines
Feeds low-pressure air to large loom and weaving stations where a 3/4in supply distributes consistent, lubricated air to multiple moving actuators.
Heavy Pneumatic Packaging
Conditions air for high-speed case erectors and palletizers, using the 5 um element to protect intricate gripper valves from fine debris.
Chemical Dosing Skids
Regulates low-pressure air for metering pumps where the 0.15-0.4 MPa range prevents over-pressurization of sensitive diaphragm assemblies.
Is the Airtac GAC F.R.L. Unit GAC50020ALNW the Right Air-Prep Unit?
Choose this 3/4in PC bowl unit when a large-flow machine line needs precise low-pressure regulation and fine 5 um filtration. The automatic drain clears the 108 cc bowl independently, suiting unattended or wet environments. If the application requires standard pressure up to 0.9 MPa, select an S-type model instead, as this L-type variant is strictly capped at 0.4 MPa. Because oil mist is added downstream, pick a separate filter-regulator if the downstream line must remain oil-free. For maintenance, the assembly accepts individual GAF500-20, GAR500-20 and GAL500-20 replacement units. Stepping up to the GAC600 body increases the plotted flow envelope from 7000 L/min to 12000 L/min at 0.7 MPa inlet, a 1.7x jump for larger duties.
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 GAC50020ALNW 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. It features a 108 cc drain bowl, a 225 cc oil bowl, a 5 um element, and weighs 2460 g. The recommended lubricant is ISO VG 32.
The N in the product code indicates no gauge is supplied. The unit has a 1/4in gauge connection, allowing operators to install a specific PT-thread gauge reading in MPa/psi to verify the 0.15-0.4 MPa setpoint.
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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