Airtac GAC F.R.L. Unit GAC50020SNK
The AirTAC Airtac GAC F.R.L. Unit GAC50020SNK 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 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 GAC50020SNK
Delivering cleaned, regulated and lubricated air for demanding pneumatic lines, this GAC50020SNK assembly integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port pairs with a 2460 g mass, placing it in a heavy-duty size class that requires a firm panel or frame mount rather than tubing support. It conditions supply air at 0.15-0.9 MPa (20-130 psi) using a 40 um element, passing flow through the filter first, then the regulator, and finally the lubricator so oil mist is added downstream without fouling the regulator seat.
Because the N follows the port, no gauge is supplied; operators can add one via the 1/4in gauge connection. This specific model carries a reverse-flow (reflux) valve, which the catalogue illustrates as a separate pneumatic symbol with details on its own page. Condensate is managed by a paired semi-auto and manual drain emptying into a 108 cc bowl, while the 225 cc oil reservoir dictates the lubricant top-up interval.
Airtac GAC F.R.L. Unit GAC50020SNK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC50020SNK |
|---|---|
| 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 | 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 GAC50020SNK
| 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. |
| (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 GAC50020SNK Is Used
Automotive Assembly Lines
Feeds large bore cylinders and multi-station headers on a production line where a steady 3/4in air supply and consistent oil mist protect moving robotic actuators.
Palletizer Air Prep
Conditions high-flow air for heavy-duty palletizing machines, ensuring pneumatic grippers and lift cylinders receive stable pressure and lubrication under continuous duty.
CNC Machine Tooling
Supplies cleaned and regulated air to CNC machining centers for tool changer actuators and coolant valves, relying on the 40 um element to protect precision valves.
Is the Airtac GAC F.R.L. Unit GAC50020SNK the Right Air-Prep Unit?
Choose this 3/4in unit when a machine header requires substantial air preparation, stepping up from the GAC400 which plots to 6000 L/min at 0.7 MPa inlet versus this body's 7000 L/min envelope. The standard PC bowl suits general industrial environments, and the semi-auto drain dumps condensate on every pressure drop. If the downstream line must remain oil-free, omit the lubricator and choose a filter-regulator instead. Replacement spares share the same body-port suffix: GAF500-20, GAR500-20 and GAL500-20. Stepping up to the GAC600 yields a 205 cc drain bowl, roughly 1.9x the 108 cc capacity here, meaning fewer manual interventions for wet lines.
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 GAC50020SNK 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 in temperatures from -5 to 70 C, weighs 2460 g, and features a 108 cc drain bowl alongside a 225 cc oil bowl. The recommended lubricant is ISO VG 32 or equivalent.
The N in the ordering code indicates no gauge is supplied from the factory. The unit has a 1/4in gauge connection port, allowing operators to install a compatible pressure gauge that matches their preferred scale. Without adding one, the exact set downstream pressure cannot be visually read.
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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