
The AirTAC Airtac GAC F.R.L. Unit GAC50020ASNW 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 5 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi).
Delivering cleaned, regulated and lubricated air for heavy pneumatic lines, this GAC50020ASNW assembly integrates a filter, regulator and lubricator on a single L-shape bracket. Air passes through the 5 um element before reaching the regulator, ensuring oil mist is added downstream so the regulator seat never fouls. The 3/4in port and 2460 g mass place this unit in a large size class that requires a solid panel or frame mount rather than tubing support.
Operating at 0.15-0.9 MPa (20-130 psi), the standard pressure type suits general plant air, while the automatic drain clears condensate from the 108 cc bowl without an operator. Because no gauge is supplied, the set pressure cannot be read without adding a 1/4in gauge to the connection port. If the downstream line must stay oil-free, omit the lubricator and choose a separate filter-regulator instead.
| Model | Airtac GAC F.R.L. Unit GAC50020ASNW |
|---|---|
| Series | GAC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | PC |
| 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. |
|---|---|
| (blank) | Bowl material: PC. 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. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
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 large multi-station machine headers where a 3/4in port sustains high air volume for concurrent pneumatic wrenches and actuators.
Conditions air for heavy-duty lift cylinders, with the 5 um element safeguarding sensitive flow controls from grit.
Supplies clean, regulated air at 0.15-0.9 MPa to tool changers and clamping fixtures, adding oil mist for high-speed moving parts.
Choose this PC bowl model for standard 0.15-0.9 MPa (20-130 psi) duties where a 5 um element protects precision valves from fine particulates. The automatic drain is decisive for unattended or wet lines, though the missing gauge means operators must fit a 1/4in accessory to monitor downstream pressure. Stepping down to the GAC400 drops the plotted flow envelope from 7000 L/min to 6000 L/min at 0.7 MPa inlet, while stepping up to the GAC600 increases the condensate capacity. Should the element clog or bowl crack, order GAF500-20, GAR500-20 and GAL500-20 spares. The 1.5 MPa (215 psi) proof pressure against a 1.0 MPa (145 psi) maximum provides a 1.5x burst-test margin, not permission to run above 1.0 MPa.
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 maximum pressure of 1.0 MPa (145 psi) and a 1.5 MPa (215 psi) proof pressure. It handles temperatures from -5 to 70 C, features a 108 cc drain bowl and a 225 cc oil bowl, uses ISO VG 32 lubricant, and weighs 2460 g.
The N in the product code indicates no gauge is supplied, so you cannot read the set pressure unless you install one. The body features a 1/4in gauge connection port, allowing you to add a PT-threaded accessory reading in MPa/psi to match the default thread scale.
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.