Airtac GAC F.R.L. Unit GAC50020SNWK
The AirTAC Airtac GAC F.R.L. Unit GAC50020SNWK 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 - 0.9 MPa (20 - 130 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 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 GAC50020SNWK
Delivering cleaned, regulated and lubricated air for heavy pneumatic lines, this AirTAC GAC50020SNWK combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves demanding circuits, while the 5 um element traps fine particulates before they reach precision valves. Air flows through the filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls.
Weighing 2460 g, this unit needs a solid panel or frame mount rather than tubing support. The PC bowl pairs with a semi-auto and manual drain, and no gauge is supplied out of the box, though a 1/4in connection is ready if you add one later. The reverse-flow valve is fitted, shown as a separate pneumatic symbol in the catalogue.
Airtac GAC F.R.L. Unit GAC50020SNWK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020SNWK |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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 GAC50020SNWK
| 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. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 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 GAC50020SNWK Is Used
Automotive Assembly Lines
Feeds large robotic welding and handling arms where a 3/4in supply maintains steady pressure across multiple simultaneous actuators.
Palletizing Stations
Conditions air for heavy-duty bagging and pallet wrapping machinery, with the 5 um element protecting high-speed pneumatic grippers from grit.
Woodworking Machinery
Supplies air to multi-spindle CNC routers and presses, relying on the 108 cc drain bowl to capture condensate from intermittent heavy demand.
Is the Airtac GAC F.R.L. Unit GAC50020SNWK the Right Air-Prep Unit?
Choose this 3/4in body for mid-to-large air preparation duties, stepping down to the GAC400 if your flow needs are lower, or up to the GAC600 for 1in main headers. The 5 um element suits instrument air and sensitive valves better than the standard 40 um grade, though it requires more frequent element changes. Since no gauge is included, operators cannot read the set pressure without adding one to the 1/4in port. If the downstream line must remain oil-free, omit the lubricator and choose a filter-regulator instead. Replacement spares share the 500-20 suffix: GAF500-20, GAR500-20 and GAL500-20. The catalogue flow curve for the GAC500 is plotted to 7000 L/min at 0.7 MPa inlet, which is roughly 1.17x the 6000 L/min envelope of the GAC400.
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 GAC50020SNWK FAQ
This standard type unit regulates from 0.15-0.9 MPa (20-130 psi) and carries a max pressure of 1.0 MPa (145 psi) with a 1.5 MPa (215 psi) proof pressure. It operates from -5 to 70 C, uses a 108 cc drain bowl and a 225 cc oil bowl, weighs 2460 g, and requires ISO VG 32 lubricant.
The N in the ordering code means no gauge is supplied, so you must add your own to the 1/4in gauge connection to read the set pressure. This model also includes a reverse-flow valve, which the catalogue details on its own page, and uses a 5 um element for finer filtration than the standard 40 um grade.
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
Request a Quote for Airtac GAC F.R.L. Unit GAC50020SNWK
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.