The AirTAC GFR30008AJC2W AirTAC Filter Regulator PT1/4, 5 um 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.
The AirTAC GFR30008AJC2W is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This unit is the size 300 series with PT1/4 (1/4 in) ports in the standard PT thread. It carries the 5 um filter element (code W, against the 40 um standard), an automatic drain that bleeds collected condensate from the PC (polycarbonate) bowl without manual attention, and a round pressure gauge reading in psi. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and no mounting bracket is included with this configuration. Maximum inlet pressure is 1.0 MPa (145 psi); operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR filter-regulator family is available in sizes 200, 300, 400 and 600 with a full step of port sizes, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, gauge style and scale options, and G (BSPP) or NPT threads as order options alongside the PT standard. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30008AJC2W AirTAC Filter Regulator PT1/4, 5 um |
|---|---|
| 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, psi 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.
| 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 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.
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) |
Feeding tool-clamp and air-blast circuits on a CNC machining centre, where the 5 um element protects fine pneumatic components and the regulator holds a steady setting at the machine.
Conditioning and regulating air to cylinder-driven carton-forming and sealing stations on a packaging line, with the automatic drain keeping condensate out of the valves between shifts.
Serving individual workbench drop legs in an assembly plant, where each station sets its own regulated pressure locally and the psi gauge gives operators a clear reading.
Size and port: the GFR range steps through sizes 200, 300, 400 and 600, each with its own port size - this unit is size 300 with PT1/4 ports, so step up a size if your line runs larger piping or higher air demand. Drain: automatic (this unit) suits points that are hard to reach or run unattended; manual drain suits attended stations; differential-pressure drain is the catalogue default. Filtration: 40 um is the standard element, while this unit's 5 um element (code W) suits finer downstream equipment. Gauge: the embedded square gauge is standard, with an external round gauge optional in MPa, psi or bar scales - this unit carries a round psi gauge. Thread: PT is standard, with G (BSPP) and NPT available as order options. A mounting bracket is optional; this configuration ships without one.
Sizing note: flow for the GFR series is published as curves, not a single rated number, so we cannot quote a rated flow figure. Send us your application's air demand and we will confirm the correct size against the datasheet before you order.
Quick checklist
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 publishes flow for the GFR series as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Tell us your application's air demand and line conditions and we will confirm the sizing against the datasheet on request before you order.
The automatic drain (code A) bleeds collected condensate from the bowl on its own, which suits unattended or hard-to-reach installations. The catalogue also offers manual drain and a differential-pressure drain as the default; with automatic drain the regulator adjustment range is 0.15-0.9 MPa (20-130 psi). This unit also carries the 5 um element (code W) instead of the 40 um standard.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
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.