
The AirTAC Airtac GAC F.R.L. Unit GAC400N15SNK 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 - 0.9 MPa (20 - 130 psi).
Delivering cleaned, regulated and lubricated air for mid-sized pneumatic setups, this GAC400N15SNK F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. It features a 1/2in port, a 40 um element and a standard pressure range of 0.15-0.9 MPa (20-130 psi). The nylon bowl equips this unit, while the reverse-flow (reflux) valve is fitted, shown as a separate pneumatic symbol in the catalogue.
Because no gauge is supplied, operators must add one to the 1/4in gauge connection to read the set pressure. Weighing 2390 g, the assembly requires a firm panel or frame mount rather than tubing support. The 100 cc condensate bowl and 185 cc oil bowl dictate the maintenance frequency, with the semi-auto and manual drain pair fitted to clear accumulated moisture.
| Model | Airtac GAC F.R.L. Unit GAC400N15SNK |
|---|---|
| Series | GAC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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. No gauge is supplied with this model — the gauge connection on a GAC400 is 1/4" if you add one.
| 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. |
| 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: GAF400-15 filter, GAR400-15 regulator, GAL400-15 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 · 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 |
Feeds main air headers for robotic welding cells and stamping presses where a steady 1/2in supply is required.
Provides consistent pressure and oil mist to the folding cylinders and sealing jaws in continuous packaging operations.
Conditions air for heavy-duty pneumatic stops and diverters on 24/7 package sorting conveyor networks.
Choose this 1/2in port body for duties requiring the GAC400 flow envelope, plotted to 6000 L/min at 0.7 MPa inlet, which is double the GAC300 capacity. If your line must remain oil-free, omit the lubricator and select a filter-regulator instead, as this unit adds oil mist downstream of the regulator seat. Replacement spares follow the body-port suffix exactly: GAF400-15, GAR400-15 and GAL400-15.
The standard type regulates up to 0.9 MPa, but the maximum supply is 1.0 MPa, leaving only about 0.1 MPa of headroom above the top setting.
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 standard type unit operates at 0.15-0.9 MPa (20-130 psi) with a max pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The temperature range is -5 to 70 C. It features a 100 cc drain bowl, a 185 cc oil bowl, a 40 um element, and weighs 2390 g. Use ISO VG 32 or equivalent lubricant.
The N in the ordering code indicates no gauge is supplied. To monitor the regulated pressure, you must install a circular gauge into the 1/4in gauge connection on the body. The default PT thread means an added gauge should read in MPa/psi.
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.