AirTAC GFR300-08 Filter Regulator (GFR30008AC3W)
The AirTAC AirTAC GFR300-08 Filter Regulator (GFR30008AC3W) is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/4" 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 sizePT1/4"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- DrainAutomatic 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 (GFR30008AC3W)
GFR30008AC3W is an AirTAC G-series filter regulator: one body doing both air preparation jobs. This 300-size unit has a 1/4 in PT port, the finer 5 um filter element, an automatic drain on the polycarbonate bowl, and the round external pressure gauge in the bar scale. Regulation range with the automatic drain is 0.15-0.9 MPa (20-130 psi), maximum inlet 1.0 MPa (145 psi), operating -5 to 70 C, with the mounting bracket included.
This is a genuine AirTAC part. The GFR family covers sizes 200 to 600 with ports from 1/8 to 1 in, plus choices of drain type, 40 um or 5 um elements, gauge scales and G/NPT threads. Flow is published as curves rather than a single rating - ask us and we will confirm the datasheet figures for your application.
AirTAC GFR300-08 Filter Regulator (GFR30008AC3W) Technical Specifications
| Model | AirTAC GFR300-08 Filter Regulator (GFR30008AC3W) |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 5 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 | Fitted — round, bar 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 GFR300-08 Filter Regulator (GFR30008AC3W)
| 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". |
| 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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 · PT1/4" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Where the AirTAC GFR300-08 Filter Regulator (GFR30008AC3W) Is Used
Pick-and-place module feed
Supplying the gripper and lift cylinders of a pick-and-place module on an automated line, with 5 um filtration guarding the small control valves.
Sorting gate array
Regulated, filtered air for the bank of divert and reject gates on a sorting conveyor, where the automatic drain handles moisture across long shifts.
Welding-cell fixture clamping
Holding a stable set pressure on the clamp cylinders of a weld fixture, with bar-scale readout matched to the cell's European control documentation.
Is the AirTAC GFR300-08 Filter Regulator (GFR30008AC3W) the Right Unit?
Pick this 300-size, 1/4 in PT unit when your demand sits between the 200 and 400 steps of the range. The W code fits the 5 um element rather than the 40 um standard - the right call ahead of sensitive valves, cylinders or instruments. The automatic drain keeps the bowl clear without operator rounds; manual drain would lower the regulation floor to 0.05-0.9 MPa (7-130 psi). Bar-scale round gauge as coded, PT thread as standard with G (BSPP) and NPT as catalogue options, bracket included. Flow is published as curves, not a single rating - confirm sizing with us before ordering.
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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC GFR300-08 Filter Regulator (GFR30008AC3W) FAQ
There is no single rated flow to quote: AirTAC publishes this family's flow performance as characteristic curves. Share your inlet pressure, set pressure and demand, and we will confirm the datasheet curve and sizing against your application on request.
Yes. PT is the standard thread on this model; G (BSPP) and NPT are catalogue thread options you select in the code when ordering. They are specification choices within the GFR300 range, and we will confirm the exact ordering code you need on request.
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 GFR300-08 Filter Regulator (GFR30008AC3W)
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.