The AirTAC Airtac GAFR Filter & Regulators GAFR400C15AST is a genuine two-in-one filter & regulator — a diversion-type water/particulate filter and a balanced pressure regulator built into ONE body. It has 1/2" ports, a 40 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi). It has no lubricator, so it adds no oil to the airflow.
The GAFR400C15AST is an AirTAC filter and regulator in a single body: incoming air is spun through a diversion stage so liquid water and solid particles fall into the bowl, then a balanced pressure mechanism sets and holds the outlet level. This model carries a 1/2in NPT port, a standard adjustment span of 0.15-0.9 MPa (20-130 psi) and a 40 um element. Because both jobs share one casting, you seal one fewer joint than you would when plumbing a separate filter ahead of a separate regulator. The C code gives a metal drain bowl holding 100 cc on a unit that weighs 880 g, and the automatic drain expels collected condensate without anyone opening a valve, which suits lines that run unattended. A circular gauge with clip and magnifier is supplied and, on the NPT thread version, reads in psi and bar. Maximum pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and the rated temperature span is -5 to 70 C.
| Model | Airtac GAFR Filter & Regulators GAFR400C15AST |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (NPT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Metal |
| 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 |
| Bracket | Included |
| Weight | 880 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. The fitted circular gauge reads in psi / bar, set by the NPT thread code. This unit filters and regulates only; it does not add lubrication.
| GAFR400 | GA400 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| T | NPT thread; gauge scale psi / bar. |
| (blank) | No reverse-flow valve. |
The filter and the regulator are ONE body here — there is no separate GAF filter or GAR regulator part to assemble. Need lubrication downstream too? Add a lubricator by ordering the matching GAFC400-15 F.R.L. combination instead.
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 | GAFR400 · 1/2" · curve to 7000 L/min |
|---|---|
| One size down | GAFR300 |
| One size up | GAFR500 (curve to 8000 L/min) |
| Add a lubricator | GAFC400-15 (F.R.L. combination) |
A machining cell with mid-size clamps and pneumatic slides draws steady air through a 1/2in line; the 0.15-0.9 MPa (20-130 psi) span covers typical clamp settings and the 40 um element protects directional valves.
Carton sealers and case packers running shifts without an operator benefit from the automatic drain: condensate drops out on its own and the balanced mechanism keeps actuator speed stable as supply pressure wanders.
The 880 g body and included bracket want a proper panel or frame mount, not support from the tubing, and the 100 cc bowl on automatic drain copes with the wet air a long header run collects.
Choose this model when a 1/2in NPT connection and the standard 0.15-0.9 MPa (20-130 psi) range match your machine; the lower-pressure L version tops out at 0.4 MPa, so pick it only if nothing downstream will ever need more. The metal bowl is a build and environment choice; since no chemical or impact data is printed, confirm material compatibility for aggressive surroundings. The A code means an automatic drain, and the bracket is included with the gauge already fitted; order the J or N variants only if you panel-mount or already read pressure elsewhere. The 40 um element suits general plant air, while the W option drops filtering to 5 um for finer protection at the cost of more frequent element service. If the line also needs oil mist downstream, order the matching GAFC400 combination, which adds a lubricator stage. A GAFR400 plots its flow curve to 7000 L/min at 0.7 MPa inlet, twice the 3500 L/min envelope of the smaller GAFR300, so drop one body size when your consumption sits below half that.
Quick checklist
This is a filter and regulator only — it delivers filtered, pressure-set air with no added oil. If a downstream tool needs lubrication, add a separate lubricator or order the GAFC400-15 combination; do not expect an oil mist from this unit.
It is a filter and regulator in one body with a 1/2in port and a 40 um element. Adjustable range: 0.15-0.9 MPa (20-130 psi) on the standard type. Maximum pressure: 1.0 MPa (145 psi). Proof pressure: 1.5 MPa (215 psi). Temperature range: -5 to 70 C. The metal drain bowl holds 100 cc and the unit weighs 880 g. The automatic drain is fitted, the mounting bracket is included, and the gauge reads psi and bar.
The thread code sets both the connection and the gauge scale: T gives NPT threads with the circular gauge reading psi and bar, G gives G threads with bar and MPa, and the blank version gives PT with MPa and psi. Pick the scale your operators actually read, since it cannot be changed by swapping parts alone.
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Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
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Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.