Airtac GAFR Adjustable Filter Regulator GAFR300C10LWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300C10LWK 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 5 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size3/8"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 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 GAFR300C10LWK
The GAFR300C10LWK is a filter and regulator combined into a single body, eliminating the need for separate components. It spins incoming air to separate liquid water and trap solid particles, then delivers a steady outlet pressure via its balanced regulator. This model has a 3/8" port, a lower-pressure range of 0.15-0.4 MPa (20-58 psi), and a 5 um element for finer filtration.
The metal bowl (C) holds 60 cc of condensate, and the unit weighs 500 g, placing it in the mid-size class for shop-floor installations. A circular gauge with MPa/psi scale is fitted, and the mounting bracket is included. The reverse-flow (reflux) valve is attached as an ordering difference, and the semi-auto plus manual drain provides flexible condensate removal.
Airtac GAFR Adjustable Filter Regulator GAFR300C10LWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300C10LWK |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 3/8" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| 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 GAFR300C10LWK
| 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. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| W | Filtering grade 5 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 GAFR300C10LWK Is Used
Precision valve control
Feed a bank of precision pneumatic valves that require clean, regulated air at a stable lower pressure. The 5 um element protects sensitive internals from fine particulate.
Test bench setup
Supply a laboratory test fixture with a consistent 0.15-0.4 MPa air supply. The self-locking knob maintains the setpoint despite bench vibration.
Light assembly line
Power small pneumatic tools on an assembly line where space is tight. The single-body design saves rail width compared to separate filter and regulator units.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300C10LWK the Right Air-Prep Unit?
Choose the GAFR300 body for 1/4" to 1/2" port lines, with a flow curve plotted to 3500 L/min at 0.7 MPa inlet; step up to the GAFR400 for a 7000 L/min envelope at 0.7 MPa inlet if you need more capacity. The metal bowl suits demanding environments, while the 5 um element traps finer particles than the standard 40 um for precision applications. The L-type regulator tops out at 0.4 MPa, so confirm your system never needs more than that. This unit includes the bracket and gauge, with a PT thread and MPa/psi scale. If lubrication is needed downstream, order the matching GAFC300-10 combination instead. The 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range, giving you headroom for supply fluctuations.
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 GAFR300C10LWK FAQ
The GAFR300C10LWK operates from 0.15-0.4 MPa (20-58 psi), with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). Temperature range is -5 to 70 C. The drain bowl holds 60 cc and the unit weighs 500 g. The port is 3/8" and the element is 5 um.
The K code indicates the reverse-flow (reflux) valve is fitted. This is an ordering difference from models without it. The catalogue does not detail its function, so consult the datasheet for operational specifics.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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