Airtac GAC F.R.L. Unit GAC400N15LK
The AirTAC Airtac GAC F.R.L. Unit GAC400N15LK 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 1/2" ports, a 40 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
- TypeF.R.L. combination
- Port size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade40 µm
- Bowl materialNylon
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- Weight2390 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 GAC400N15LK
Supplying a 1/2in port, the AirTAC GAC400N15LK is a three-unit F.R.L. combination that pre-assembles a filter, regulator and lubricator on a single L-shape bracket with quick mounting clamps. Air passes through the filter first, then the regulator sets the pressure, and the lubricator adds oil mist last so the internal regulator seat never gets fouled. This lower-pressure type regulates between 0.15-0.4 MPa (20-58 psi) and uses a standard 40 um element.
Weighing 2390 g, this body pairs a 100 cc condensate bowl with a 185 cc oil reservoir, meaning fewer interventions compared to a GAC300 with its 60 cc drain capacity. The unit carries a nylon bowl and a fitted circular gauge reading MPa/psi for the default PT thread. A reverse-flow (reflux) valve is fitted, which the catalogue shows as a separate pneumatic symbol with details on its own page.
Airtac GAC F.R.L. Unit GAC400N15LK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC400N15LK |
|---|---|
| Series | GAC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Nylon |
| 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 | 100 cc |
| Capacity of oil bowl | 185 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 2390 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 GAC400N15LK
| GAC400 | GA400 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| (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. |
| K | Reverse-flow (reflux) valve attached. |
Constituent units, orderable separately as spares: GAF400-15 filter, GAR400-15 regulator, GAL400-15 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 | GAC400 · 1/2" · curve to 6000 L/min |
|---|---|
| One size down | GAC300 |
| One size up | GAC500 (curve to 7000 L/min) |
| Build order | Filter → bracket → regulator → lubricator |
Where the Airtac GAC F.R.L. Unit GAC400N15LK Is Used
Textile Machinery
Feeds low-pressure actuator banks on looms and spinning frames where delicate tension control requires a strict 0.4 MPa ceiling.
Carton Erectors
Conditions air for pneumatic folding arms and sealers that operate large-bore cylinders at moderate pressures without needing high force.
Light Conveyor Lines
Prepares air for sorting diverters and gentle product handling gates that rely on soft contact and lower actuation forces.
Is the Airtac GAC F.R.L. Unit GAC400N15LK the Right Air-Prep Unit?
Choose this model for 1/2in ported lines that need a strict 0.15-0.4 MPa (20-58 psi) ceiling; if the machine may ever need more, the L type is the wrong part. It ships with both a semi-auto and a manual drain (the semi-auto dumps on each pressure drop, the manual on demand), and the 40 um element handles general plant air. Because oil mist is added downstream, choose a filter-regulator instead if the line must stay oil-free. Should a component fail, the three units are separately orderable as GAF400-15, GAR400-15 and GAL400-15.
The catalogue flow curve for the GAC400 is plotted to 6000 L/min at 0.7 MPa inlet, which is exactly double the GAC300's 3000 L/min envelope, giving clear room to size up. Furthermore, the 0.4 MPa upper limit is 44% of the Standard type's 0.9 MPa ceiling.
Quick checklist
- ✓ Body size for your peak flow (1/2" 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 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 2390 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 GAC400N15LK FAQ
This lower-pressure type operates at 0.15-0.4 MPa (20-58 psi) with a max pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It handles temperatures from -5 to 70 C, uses a 40 um element, and weighs 2390 g. The drain bowl holds 100 cc and the oil bowl holds 185 cc, requiring ISO VG 32 or equivalent lubricant.
The K indicates that a reverse-flow (reflux) valve is attached to this unit. The catalogue draws this as a separate pneumatic symbol with details on its own page, representing an ordering difference for specific circuit requirements.
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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