Airtac GAFR Adjustable Filter Regulator GAFR300C10SK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300C10SK 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 3/8" 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.
- TypeFilter & regulator
- Port size3/8"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialMetal
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- Weight500 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAFR Adjustable Filter Regulator GAFR300C10SK
The GAFR300C10SK is a filter and regulator combined into a single body, replacing the need for separate GAF filter and GAR regulator units. It spins incoming air to separate liquid water and trap solid particles, then delivers a steady outlet pressure through its balanced regulator. This model has a 3/8" port, a 60 cc metal condensate bowl, and weighs 500 g, making it a compact mid-range solution for machine sub-circuits.
It operates in the standard pressure range of 0.15-0.9 MPa (20-130 psi) with a 40 um filtering element. The metal bowl suits demanding environments, and the included circular gauge with MPa/psi scale provides clear local pressure readout. A reverse-flow valve is fitted as an ordering option, and the unit is rated for -5 to 70 C without freezing.
Airtac GAFR Adjustable Filter Regulator GAFR300C10SK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300C10SK |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 3/8" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Metal |
| 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 | 60 cc |
| Bracket | Included |
| Weight | 500 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR300C10SK
| GAFR300 | GA300 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). |
| 10 | Port size 3/8". This body offers 08 = 1/4", 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). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
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 GAFC300-10 F.R.L. combination instead.
Size Class & Flow Envelope
- GAFR2001/8"-1/4" · 2000 L/min
- GAFR3001/4"-1/2" · 3500 L/min
- GAFR4003/8"-1/2" · 7000 L/min
- GAFR5003/4" · 8000 L/min
- GAFR6003/4"-1" · 12000 L/min
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 | GAFR300 · 3/8" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-10 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR300C10SK Is Used
Machine tool sub-circuits
Feed a 3/8" line to a precision drilling or tapping spindle with clean, regulated air. The 40 um element protects the spindle's internal pilot valves from particulate wear.
Assembly station air prep
Mount this unit on a workbench or machine frame to supply filtered air to pneumatic hand tools and fixtures. The 60 cc metal bowl handles condensate from humid plant air with manual draining.
Test rig pressure control
Use the balanced regulator to hold a stable test pressure for jigs and gauges. The included gauge lets operators verify setpoint at a glance, and the reverse-flow valve is fitted per the K code.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300C10SK the Right Air-Prep Unit?
Choose the GAFR300 body for 1/4" to 1/2" port lines; its 3500 L/min flow envelope at 0.7 MPa inlet sits between the smaller GAFR200 and the larger GAFR400. The metal bowl (C) is a build choice with the same 1.0 MPa max pressure rating as PC or nylon versions. This model includes both semi-auto and manual drains, the standard S pressure type, a mounting bracket, and a fitted gauge. The 40 um element is the standard grade; select W for 5 um filtration if you need finer particle removal for precision valves. The PT thread option pairs with the MPa/psi gauge scale. Since the K code is present, the reverse-flow valve is fitted as an ordering difference. If your line needs lubrication downstream, order the matching GAFC300-10 combination instead. With a 1.0 MPa max supply, you have about 0.1 MPa above the 0.9 MPa top of the regulated range, so plan your inlet pressure near maximum to achieve the highest setpoints.
Quick checklist
- ✓ Body size for your peak flow (3/8" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Bracket kept or removed (J); add a lubricator = GAFC
Installation & Maintenance Notes
- check Install with the airflow arrow: IN to OUT, gauge/knob accessible.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure with the pressed-in self-locking knob; pull to adjust, press to lock.
- check Drain condensate before the 60 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 500 g unit on its bracket, not on the tubing.
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 GAFC300-10 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR300C10SK FAQ
The GAFR300C10SK is a filter & regulator with a 3/8" port. Its pressure range is 0.15-0.9 MPa (20-130 psi), with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C and must not freeze. The metal drain bowl holds 60 cc of condensate, and the unit weighs 500 g. It uses a 40 um element and has a semi-auto plus manual drain.
The K code indicates that a reverse-flow (reflux) valve is fitted to the GAFR300C10SK. This is an ordering difference from models without the K code. The catalogue defers the detailed function of this valve to a separate page, so we recommend confirming the operational details from the official AirTAC datasheet if you need them.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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