Airtac GAC F.R.L. Unit GAC400N15ALK
The AirTAC Airtac GAC F.R.L. Unit GAC400N15ALK 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
- Drainautomatic
- 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 GAC400N15ALK
Delivering cleaned, regulated and lubricated air for demanding pneumatics, the AirTAC GAC400N15ALK is a complete F.R.L. combination built around a 1/2in port. This assembly pairs a 40 um filter, a regulator and a lubricator on a single L-shape bracket with quick mounting clamps, eliminating inter-unit tubing. The nylon bowl equips this lower-pressure type unit, which operates within a 0.15-0.4 MPa (20-58 psi) range.
Air moves through the filter, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. Fitted with an automatic drain, the 100 cc condensate bowl clears liquid without an operator present. A circular gauge reading MPa/psi is included for the default PT thread, and the reverse-flow valve is fitted as a distinct pneumatic symbol detailed in the catalogue.
Airtac GAC F.R.L. Unit GAC400N15ALK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC400N15ALK |
|---|---|
| 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 | 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 | 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 GAC400N15ALK
| 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". |
| 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). |
| (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 GAC400N15ALK Is Used
Textile Machinery
Feeds low-pressure air to looms and spinning frames where delicate yarn handling requires a stable 0.15-0.4 MPa output and continuous lubrication.
Carton Erectors
Conditions air for pneumatic folding arms and sealers on automated packaging lines, using the automatic drain to handle condensate in humid washdown areas.
Lab Pneumatics
Supplies regulated, lubricated air to multi-station laboratory test rigs, benefiting from the 40 um element to protect precision valves from particulate ingress.
Is the Airtac GAC F.R.L. Unit GAC400N15ALK the Right Air-Prep Unit?
Choose this 2390 g assembly for mid-capacity lines needing stable low-pressure output. The automatic drain suits unattended or wet environments, while the 185 cc oil bowl minimises maintenance interventions. If a machine ever requires pressure above 0.4 MPa, this lower-pressure type is the wrong part. Because oil mist is added downstream, select a filter-regulator instead if the line must remain oil-free. Replacement spares follow the body-port suffix exactly: 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, whereas the smaller GAC300 plots to 3000 L/min, giving this body a 2x flow-envelope step for sizing larger duties. Note that 0.4 MPa 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 GAC400N15ALK FAQ
This lower-pressure unit regulates from 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). It operates from -5 to 70 C, weighs 2390 g, features a 100 cc drain bowl and a 185 cc oil bowl, and uses ISO VG 32 lubricant.
The K indicates that a reverse-flow (reflux) valve is attached to this assembly. The catalogue shows this component as a separate pneumatic symbol with further details provided on its own page.
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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