AirTAC GFR300-08 Filter Regulator (GFR30008F1K)
The AirTAC AirTAC GFR300-08 Filter Regulator (GFR30008F1K) 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 PT1/4" 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 sizePT1/4"
- 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 GFR300-08 Filter Regulator (GFR30008F1K)
The AirTAC GFR30008F1K is a G-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure in one body, with a reverse/check valve fitted. This configuration is the 300 size with a PT1/4 (Rc 1/4) port, the standard 40 um filter element, a differential-pressure drain, and the embedded square pressure gauge reading in MPa. The regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the 300-size polycarbonate bowl suits ambient temperatures of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, drain types (differential-pressure, automatic or manual), 40 um or 5 um elements, PT, G or NPT threads, and gauge or check-valve options. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures for your application on request.
AirTAC GFR300-08 Filter Regulator (GFR30008F1K) Technical Specifications
| Model | AirTAC GFR300-08 Filter Regulator (GFR30008F1K) |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (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 — square, MPa scale |
| 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 GFR300-08 Filter Regulator (GFR30008F1K)
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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 · PT1/4" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Where the AirTAC GFR300-08 Filter Regulator (GFR30008F1K) Is Used
Pilot air for process valves
Supplies pilot air to solenoid valves on a process skid, where the fitted check valve helps keep the regulated circuit isolated from upstream disturbances.
Wire and cable machinery
Conditions the air feeding pneumatic tensioners and guides on a wire-drawing or cabling line, with the MPa gauge giving operators a fixed reference setting.
Trailer and body pneumatic systems
Regulates filtered air on vehicle body equipment such as tail-lift and door controls, where the check valve supports stable downstream pressure in the circuit.
Is the AirTAC GFR300-08 Filter Regulator (GFR30008F1K) the Right Unit?
The 300 size with its PT1/4 port suits 1/4 inch line plumbing in the mid flow range of the GFR family; step up to 400 or 600 for larger ports and more flow, or down to 200 for compact circuits. The K in this code adds a reverse/check valve to the standard set-up, which also carries the 40 um element, the differential-pressure drain and the embedded square MPa gauge. PT is the standard thread; G (BSPP) and NPT are catalogue options you can order. If you do not need the check valve, the same unit without K is the GFR30008F1, and the finer 5 um element or an automatic drain are also available as codes. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing before you order.
Quick checklist
- ✓ Body size for your peak flow (PT1/4" 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 GFR300-08 Filter Regulator (GFR30008F1K) FAQ
AirTAC publishes filter-regulator performance as flow curves, not as a single rated number, so we do not quote a figure here. Send us your line pressure and demand and we will confirm the correct size from the datasheet on request.
The plain code ending means PT is the standard thread, so the GFR30008F1K as coded has a PT1/4 port. G (BSPP) and NPT are catalogue thread options you can order for the same 300-size filter regulator - just ask us for the correct suffix when specifying.
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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 GFR300-08 Filter Regulator (GFR30008F1K)
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.