Airtac GAFR Adjustable Filter Regulator GAFR300C10SJNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300C10SJNK 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 gaugeNot fitted
- 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 GAFR300C10SJNK
The GAFR300C10SJNK is a filter and regulator combined into a single body, saving rail space and eliminating a joint compared to separate GAF and GAR units. It handles a 3/8" port with a 40 um element, delivering a regulated output from 0.15 to 0.9 MPa (20-130 psi).
This version has a metal bowl and comes without a gauge, so the 1/8" gauge connection is available if you add one later. The semi-auto and manual drains are both fitted, and the reverse-flow valve is included as an ordering difference.
Airtac GAFR Adjustable Filter Regulator GAFR300C10SJNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300C10SJNK |
|---|---|
| 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 | Not included (J) |
| Weight | 500 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. No gauge is supplied with this model — the gauge connection on a GAFR300 is 1/8" if you add one. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR300C10SJNK
| 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). |
| J | No bracket (J) — supplied without the mounting bracket. |
| N | No pressure gauge; 1/8" gauge connection. |
| (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 GAFR300C10SJNK Is Used
Precision Fixture Clamping
Feed a 3/8" line to a precision clamping fixture on a CNC machine. The 40 um element protects fine valve internals, while the regulator holds a steady pressure for consistent clamping force.
Conveyor Tensioning
Maintain stable air pressure for a conveyor belt tensioning cylinder. The semi-auto drain handles routine condensate removal in a moderately wet line, and the metal bowl stands up to shop-floor conditions.
Test Bench Air Supply
Provide clean, regulated air to a test bench with multiple pneumatic gauges. The 500 g body mounts securely to a panel, and the reverse-flow valve is fitted as specified for the application.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300C10SJNK the Right Air-Prep Unit?
Choose the body and port first: GAFR300 offers 1/4", 3/8", and 1/2" ports, with a flow curve plotted to 3500 L/min at 0.7 MPa inlet. The metal bowl here is a build choice; the 1.0 MPa max and -5 to 70 C range are identical for PC, nylon, and metal bowls, so confirm compatibility for aggressive surroundings. The semi-auto and manual drains are both fitted, while the J code means no bracket is included. The N code means no gauge is supplied, but the 1/8" connection is ready for one. The K code adds the reverse-flow valve. If oil is needed downstream, order the GAFC300-10 combination instead. 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range.
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 GAFR300C10SJNK FAQ
Working pressure is 0.15-0.9 MPa (20-130 psi), with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. 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 40 um.
The J code omits the mounting bracket for panel-mount installations, and the N code means no gauge is supplied. The 1/8" gauge connection is present, so you can add a gauge with the correct scale for your PT threads.
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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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