
The AirTAC Airtac GAC F.R.L. Unit GAC500N20ASNK 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).
Delivering cleaned, regulated and lubricated air for demanding pneumatic lines, this GAC500N20ASNK combines a filter, regulator and lubricator on a single L-shape bracket. The 3/4in port serves a standard pressure range of 0.15-0.9 MPa (20-130 psi) with a 40 um element. Because the lubricator sits last in the sequence, oil mist is introduced downstream of the regulator seat, preventing fouling of the internal pressure-control mechanisms.
Weighing 2460 g, the assembly relies on a solid panel or frame mount rather than tubing support. The unit uses a nylon bowl and an automatic drain to clear condensate from the 108 cc sump without an operator. No gauge is supplied, but a 1/4in connection is ready if you need to add one to read the set pressure.
| Model | Airtac GAC F.R.L. Unit GAC500N20ASNK |
|---|---|
| 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 | 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 | 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.
| GAC500 | GA500 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). |
| 20 | Port size 3/4". This body offers 20 = 3/4". |
| A | Drain: Automatic 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.
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 |
Feeds a multi-station machine header where the 3/4in port and automatic drain handle continuous air demand and high condensate generation without operator intervention.
Supplies oil-misted air to heavy-duty pneumatic grippers and cylinders, ensuring moving parts stay lubricated during high-cycle pallet handling operations.
Conditions air for large bore actuators on CNC routers, using the 40 um element to protect valves from sawdust ingress while maintaining stable pressure.
This 3/4in body offers a flow envelope plotted to 7000 L/min at 0.7 MPa inlet, sitting between the GAC400 (6000 L/min) and the GAC600 (12000 L/min). The automatic drain is decisive for unattended or wet lines, while the nylon bowl suits standard plant environments. If the downstream circuit must remain completely oil-free, omit the lubricator and choose a dedicated filter-regulator instead. The three constituent parts are separately orderable as GAF500-20, GAR500-20 and GAL500-20, so a damaged bowl does not require replacing the whole assembly. The reverse-flow (reflux) valve is fitted on this model, shown as a separate pneumatic symbol in the catalogue. Stepping down to the GAC400 reduces the condensate sump to 100 cc, whereas this GAC500 holds 108 cc, giving roughly 1.08x the drain capacity of its smaller neighbour.
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 regulates from 0.15-0.9 MPa (20-130 psi) and shares a 1.0 MPa (145 psi) max pressure with a 1.5 MPa (215 psi) proof pressure. It operates from -5 to 70 C, weighs 2460 g, and uses ISO VG 32 lubricant. The drain bowl holds 108 cc and the oil bowl holds 225 cc.
No gauge is supplied from the factory. The N in the code after the port indicates the gauge is omitted, but a 1/4in gauge connection is built into the body so you can install your own pressure indicator to monitor the 0.15-0.9 MPa range.
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.