Airtac GFR Filter Regulator GFR300C10AJNWK
The AirTAC Airtac GFR Filter Regulator GFR300C10AJNWK 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 GFR300C10AJNWK
The GFR300C10AJNWK is an AirTAC G-series filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at your set point. This 300-size unit has a 3/8 in PT port, the finer 5 um filter element (W) and an automatic drain that ejects collected condensate from the PC bowl without manual attention. A reverse (check) valve is fitted (K). No pressure gauge is fitted (N) and no mounting bracket is included (J). With automatic drain, the adjusting range is 0.15-0.9 MPa (20-130 psi); max inlet pressure is 1.0 MPa (145 psi) and operating temperature is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR filter regulator series is offered in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um (W) elements, G (BSPP) and NPT thread options, gauge and bracket variants, and a low-pressure type. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application.
Airtac GFR Filter Regulator GFR300C10AJNWK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C10AJNWK |
|---|---|
| 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 GFR300C10AJNWK
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| C1 | 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-C1 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR300C10AJNWK Is Used
Mechanical press air prep
Regulate the supply to a press clutch and brake circuit; the fitted check valve backs up downstream pressure if the plant air main drops momentarily.
Process valve actuation
Feed quarter-turn pneumatic actuators on a water treatment skid with 5 um filtered air at a fixed set point, while the automatic drain handles condensate continuously.
Wire-line pneumatic tensioner
Supply the tensioner and dancer on a wire-drawing machine; clean regulated air plus the check valve keeps tension stable through pressure dips in the shop main.
Is the Airtac GFR Filter Regulator GFR300C10AJNWK the Right Unit?
Step up through 200 / 300 / 400 / 600 to match your port and flow need - this is the 300 size with 3/8 in PT thread. The 5 um (W) element gives finer filtration than the 40 um standard, and the K option adds a reverse (check) valve for circuits that should hold pressure if supply dips. Drain options: differential-pressure (default), automatic (this unit) or manual (M). Gauge and bracket are omitted in this code but available as variants; G (BSPP) or NPT threads can be ordered instead of PT. Flow is published as curves, not a single rating, so ask us to confirm sizing before ordering.
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 GFR300C10AJNWK FAQ
We do not quote a single rated flow because AirTAC publishes G-series flow as curves, not one figure. Share your application details and we will confirm the sizing and send the datasheet on request.
K means a reverse (check) valve is fitted, so downstream pressure is held back if the upstream supply drops. The same unit without K is available, and you can combine K with either the 40 um standard or the 5 um (W) element and any drain type in the GFR range.
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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 GFR300C10AJNWK
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.