Airtac GAC F.R.L. Unit GAC500C20SNK
The AirTAC Airtac GAC F.R.L. Unit GAC500C20SNK 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 - 0.9 MPa (20 - 130 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 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 GAC500C20SNK
Delivering cleaned, regulated and lubricated air for heavy pneumatic duty, the GAC500C20SNK is a three-unit F.R.L. combination built around a 3/4in port. Air passes through a 40 um filter, a standard type regulator set for 0.15-0.9 MPa (20-130 psi), and a lubricator that introduces oil mist downstream of the pressure seat. The assembly rides on an L-shape bracket with quick clamps, eliminating inter-unit tubing and cutting installation leak paths.
This specific configuration uses a durable metal bowl paired with a semi-auto and manual drain setup, tipping the scales at 2460 g. Because the code carries an N after the port, no pressure gauge is supplied; the block retains a 1/4in gauge connection should operators need to add instrumentation. A reverse-flow valve is fitted, which the catalogue depicts as a separate pneumatic symbol with details on its own page.
Airtac GAC F.R.L. Unit GAC500C20SNK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC500C20SNK |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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 GAC500C20SNK
| 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. |
| 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. |
| (blank) | Filtering grade 40 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 GAC500C20SNK Is Used
Automotive Assembly Line
Feeds a multi-station welding cell where the 3/4in port supplies enough volume for several large bore cylinders operating simultaneously.
Palletizer Air Header
Conditions the main air supply for a robotic palletizer, ensuring consistent pressure and oil mist for heavy-duty gripper actuators.
Heavy Material Handling
Prepares air for a chain conveyor system, protecting pneumatic brakes and clutches from moisture and particulate ingress.
Is the Airtac GAC F.R.L. Unit GAC500C20SNK the Right Air-Prep Unit?
Choose this 2460 g assembly when a machine header demands a robust metal bowl and a 3/4in flow path, stepping up from the GAC400 which plots a 6000 L/min envelope at 0.7 MPa inlet versus this body's 7000 L/min curve. The semi-auto drain dumps condensate on every pressure drop while the manual option allows on-demand emptying of the 108 cc bowl. If the downstream line must remain completely free of oil, skip the lubricator and select a dedicated filter-regulator instead. Replacement spares share the exact same suffix: GAF500-20, GAR500-20 and GAL500-20. The 1.5 MPa proof pressure provides a 1.5x burst-test margin above the 1.0 MPa maximum, though it is never permission to run above that limit.
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 GAC500C20SNK FAQ
This standard type unit regulates from 0.15-0.9 MPa (20-130 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C, uses a 40 um element, weighs 2460 g, holds 108 cc of condensate and 225 cc of oil, and requires ISO VG 32 lubricant.
No, the N in the code means no gauge is supplied. The unit features a 1/4in gauge connection, allowing you to install a separate instrument if you need to visually monitor the 0.15-0.9 MPa outlet setting.
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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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