Airtac GFR Filter Regulator GFR300C08AJNW
The AirTAC GFR Filter Regulator GFR300C08AJNW is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- 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 GFR Filter Regulator GFR300C08AJNW
GFR300C08AJNW is an AirTAC G-series filter regulator: filtration and pressure regulation in one 300-size body for compressed air. This configuration has PT (1/4 in) ports, an automatic drain that clears condensate from the PC bowl on its own, and the optional 5 um element (W) for finer filtration than the standard 40 um grade. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the operating range is -5 to 70 C. No gauge, bracket or check valve is fitted on this build.
It is a genuine AirTAC part. The GFR family spans 200 to 600 size with G(BSPP) and NPT thread options, manual and differential-pressure drain variants, and gauge and bracket choices. Flow is published as curves rather than a single rated figure, so we confirm the flow and datasheet details for your application on request.
Airtac GFR Filter Regulator GFR300C08AJNW Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08AJNW |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
Model Code: Airtac GFR Filter Regulator GFR300C08AJNW
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| C0 | Port size See datasheet. This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C0 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR300C08AJNW Is Used
Analytical instrument air
Filtered air at a fixed pressure feeds sample-prep enclosures and actuated valves on a lab analyzer skid, with the 5 um element suiting sensitive pneumatic components.
Electronics assembly pick-and-place
Regulated air supplies the vacuum ejectors and gripper cylinders of PCB placement modules, where finer filtration protects small moving parts.
Spray booth gun supply
The unit delivers filtered air at a set pressure to the spray guns in a paint booth, with the automatic drain handling condensate collected through the shift.
Is the Airtac GFR Filter Regulator GFR300C08AJNW the Right Unit?
Choose this 300-size, 1/4 in PT code when downstream equipment needs the finer 5 um element rather than the standard 40 um grade - for example instruments, vacuum ejectors or fine control valves; general cylinder and tool circuits are usually served by the 40 um codes. Drain type is automatic here, with manual and differential-pressure variants in the range; step up or down in size (200/400/600) to match demand. Flow is published as curves, not a single rating, so ask us to confirm sizing before ordering. Thread is PT as standard with G(BSPP) and NPT orderable; this build has no bracket and no gauge.
Quick checklist
- ✓ Body size for your peak flow (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
Airtac GFR Filter Regulator GFR300C08AJNW FAQ
AirTAC publishes flow for the G-series as curves, not as a single rated figure, so no number is stated here. Share your working pressure and consumption and we will confirm sizing against the curves and provide the datasheet on request.
The W in the code orders the 5 um element; without it the unit carries the standard 40 um grade. Choose 5 um when downstream devices need finer filtration, and 40 um for general cylinder and tool circuits. Both grades are catalogue options in every GFR size.
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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.
Request a Quote for Airtac GFR Filter Regulator GFR300C08AJNW
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.