AirTAC GFR300-10 Filter Regulator (GFR30010AJNK)
The AirTAC AirTAC GFR300-10 Filter Regulator (GFR30010AJNK) 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 PT3/8" ports, a automatic 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 sizePT3/8"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainAutomatic drain
- Bowl materialPC
- Pressure gaugeNot fitted
- 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 GFR300-10 Filter Regulator (GFR30010AJNK)
GFR30010AJNK is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and holds a steady downstream pressure. This 300-size unit carries a PT3/8 port for mid-size supply lines, the A code gives an automatic drain that ejects collected condensate on its own, the standard 40 um element suits general plant air, no gauge is fitted, and the K code adds a check valve that holds downstream pressure if the upstream supply drops.
This is a genuine AirTAC part in the 200/300/400/600 G-series line, available in other ports and threads (G and NPT are catalogue options), other drain types, the finer 5 um element and an optional gauge. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures on request.
AirTAC GFR300-10 Filter Regulator (GFR30010AJNK) Technical Specifications
| Model | AirTAC GFR300-10 Filter Regulator (GFR30010AJNK) |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Not fitted |
| Reflux valve | Fitted (reverse flow permitted) |
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 GFR300-10 Filter Regulator (GFR30010AJNK)
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic 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. |
| J | Supplied without bracket. |
| N | No pressure gauge (N). |
| (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. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Where the AirTAC GFR300-10 Filter Regulator (GFR30010AJNK) Is Used
Welding fixture clamping
Feeds the pneumatic swing clamps on a robotic welding fixture; the check valve holds the clamped pressure steady if plant supply dips mid-cycle.
Packaging machine air prep
Supplies the cylinder-and-valve package on a carton-forming machine with filtered, regulated air held at one set point for the whole shift.
Conveyor diverters and stops
Runs pop-up diverters and stop gates on a parcel conveyor line where steady downstream pressure keeps stroke timing repeatable.
Is the AirTAC GFR300-10 Filter Regulator (GFR30010AJNK) the Right Unit?
Step up from size 200 to this 300 size (PT3/8) when the line feeds several cylinders or valves; larger sizes mean larger ports and more flow. Automatic drain means no one has to visit the bowl to dump condensate - choose manual or differential-pressure drain if that suits the installation better. The built-in check valve keeps the regulated downstream circuit from bleeding back when upstream pressure falls.
Flow is published as curves, not a single rated figure, so ask us to confirm sizing against your application before ordering. The thread is standard PT; G (BSPP) and NPT are order options, and the J code means no mounting bracket is supplied.
Quick checklist
- ✓ Body size for your peak flow (PT3/8" 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC GFR300-10 Filter Regulator (GFR30010AJNK) FAQ
AirTAC publishes flow for the GFR series as curves, not as a single rated number, so we do not quote one figure here. Send us your line pressure and air demand and we will confirm the sizing from the datasheet on request.
K means a reverse/check valve is fitted. It holds the regulated downstream pressure in place when the upstream supply drops, which is useful on clamping and holding circuits where losing pressure mid-cycle is not acceptable.
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.
Request a Quote for AirTAC GFR300-10 Filter Regulator (GFR30010AJNK)
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.