
The AirTAC Airtac GAC F.R.L. Unit GAC400N10LK 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 3/8" ports, a 40 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
Delivering cleaned, regulated and lubricated air for downstream pneumatics, this AirTAC unit integrates a filter, regulator and lubricator on a single L-shape bracket. The 3/8in ported body pairs a 100 cc condensate bowl with a 185 cc oil reservoir, weighing 2390 g. A 40 um element captures particulates, while the lower pressure type governs output between 0.15-0.4 MPa (20-58 psi).
Air passes through the filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. The nylon bowl is fitted with both semi-auto and manual drains, and a circular gauge reading MPa/psi is included for the default PT thread. This specific configuration also carries a reverse-flow (reflux) valve, which the catalogue shows as a separate pneumatic symbol with details on its own page.
| Model | Airtac GAC F.R.L. Unit GAC400N10LK |
|---|---|
| Series | GAC400 F.R.L. combination |
| Port size | 3/8" (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.
| 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). |
| 10 | Port size 3/8". 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: GAF400-10 filter, GAR400-10 regulator, GAL400-10 lubricator — all three share this body and port.
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 · 3/8" · curve to 6000 L/min |
|---|---|
| One size down | GAC300 |
| One size up | GAC500 (curve to 7000 L/min) |
| Build order | Filter → bracket → regulator → lubricator |
Feeds delicate pneumatic clamps on electronics assembly lines where actuator force must stay below 0.4 MPa to avoid crushing components.
Conditions air for small bagging and sealing machines, providing steady low pressure and oil mist to protect moving jaws.
Supplies clean, regulated air to laboratory test fixtures that require precise low-pressure control and lubrication for valves.
Choose this assembly when a machine requires strictly limited downstream pressure, as the L type tops out at 0.4 MPa; if the equipment might ever demand more, the standard 0.15-0.9 MPa variant is the correct choice. The 100 cc drain bowl and 185 cc oil capacity dictate the maintenance interval, requiring fewer interventions than a smaller body. Because oil mist is introduced downstream, select a filter-regulator instead if the line must remain oil-free. Should the element clog or bowl sustain damage, order the individual GAF400-10, GAR400-10 and GAL400-10 spares rather than replacing the whole assembly. Stepping down to the GAC300 reduces the plotted flow envelope from 6000 L/min to 3000 L/min at 0.7 MPa inlet, halving the available capacity. Furthermore, the 0.4 MPa ceiling is about 44% of the standard type's 0.9 MPa maximum, quantifying exactly what is sacrificed for low-pressure control.
Quick checklist
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.
This lower-pressure type operates at 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 features a 3/8in port, a 40 um element, a 100 cc drain bowl, a 185 cc oil bowl, and weighs 2390 g. The unit functions from -5 to 70 C and uses ISO VG 32 lubricant.
The K indicates that a reverse-flow (reflux) valve is attached to the unit. The catalogue illustrates this as a distinct pneumatic symbol, and its specific operational details are found on a separate page of the documentation.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.