Airtac GFR Filter Regulator GFR300C08AJC1K
The AirTAC GFR Filter Regulator GFR300C08AJC1K 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 GFR300C08AJC1K
AirTAC's GFR series combines a filter and a pressure regulator in one body: a 40 um element with a drain bowl removes water and particulate from compressed air, and the regulator section sets downstream pressure over 0.15-0.9 MPa (20-130 psi) on this automatic-drain version. This GFR300C08AJC1K is the size 300 frame with PT1/4 (1/4 in.) ports, an automatic drain, a round external pressure gauge on the MPa scale, and a reverse (check) valve fitted. The bowl on size 300 is polycarbonate (PC), and the J code specifies the unit without a mounting bracket.
It is a genuine AirTAC part from the G series, which runs from size 200 to 600 with ports from 1/8 in. to 1 in., PT as the standard thread and G (BSPP) or NPT as catalogue options. The medium is compressed air only, with a maximum working pressure of 1.0 MPa (145 psi) and an operating range of -5 to 70 C. Flow is published as curves rather than a single rating, so we confirm datasheet figures for your duty on request.
Airtac GFR Filter Regulator GFR300C08AJC1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08AJC1K |
|---|---|
| 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 GFR300C08AJC1K
| 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 GFR300C08AJC1K Is Used
Plasma cutting table air feed
Conditions shop air ahead of a plasma cutter torch inlet: the 40 um element strips water and scale, the regulator holds the cutting pressure the torch manual calls for, and the check valve stops the line bleeding back.
Paint spray booth gun supply
Sits at the drop point above a finishing booth spray guns, keeping condensate out of the atomising air and holding the atomisation pressure the coating data sheet specifies.
Carton sealing line cylinders
Prepares air for the fold-and-tape cylinders on a case sealer so stroke speed and sealing pressure stay consistent from the first carton of the shift to the last.
Is the Airtac GFR Filter Regulator GFR300C08AJC1K the Right Unit?
The real choices in this family: size and port (200/300/400/600 frames, 1/8 in. to 1 in. ports - pick the step that matches your air demand), drain type (automatic as here, or manual or differential-pressure), filter grade (standard 40 um, or the 5 um W element), gauge style and scale, and thread (PT standard; G and NPT orderable by code). This code fixes those at 300 / PT1/4, automatic drain, 40 um element, no bracket, round MPa gauge and a fitted check valve. Because AirTAC publishes flow as curves rather than one rated figure, ask us to confirm sizing against your application 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 GFR300C08AJC1K FAQ
AirTAC publishes G-series performance as flow curves rather than one rated figure, so there is no single number we can quote. Send us your line pressure and air demand and we will confirm the right size from the datasheet on request.
The A in the code selects the automatic drain, which ejects collected condensate without manual attention - useful on lines that run unattended. Manual (M) and differential-pressure (blank) drains exist on the same 300 frame if you prefer to control blowdown yourself.
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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 GFR300C08AJC1K
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.