The AirTAC GFR30008JF2G AirTAC Filter Regulator G1/4, 40 um, psi gauge 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.
The AirTAC GFR30008JF2G is a GFR300-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has a G1/4 (BSPP) port, a 40 um standard filter element, a differential-pressure drain that bleeds condensate automatically as flow passes through, an embedded square gauge reading in psi, and a standard regulator with an adjustment range of 0.15-0.9 MPa (20-130 psi). Maximum inlet pressure is 1.0 MPa (145 psi), the polycarbonate bowl suits -5 to 70 C (non-freezing) service, and no mounting bracket or reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and with choices of drain type, 40 um or 5 um filtration, gauge scale, and PT, G or NPT thread. Flow is published as curves rather than a single rating, so ask us to confirm sizing or any datasheet figure against your application before ordering.
| Model | GFR30008JF2G AirTAC Filter Regulator G1/4, 40 um, psi gauge |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (G (BSPP) 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, 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". |
| (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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Point-of-use air prep for the pneumatic clamps and swing cylinders on a CNC machining cell: the 40 um element keeps swarf-laden shop air out of the clamp valves while the regulator holds a steady clamp pressure at the machine.
Supplying the divert gates and stopper cylinders on a warehouse conveyor line, where the differential-pressure drain clears condensate during continuous running and the psi gauge lets maintenance verify set-point at a glance.
Regulated, filtered air for the actuated valves and grippers on a bench-top test rig, where the compact 300-size body, G1/4 connection and psi-reading square gauge suit instrument-air panels and repeatable low-pressure settings.
Start with the size and port: GFR300 with a 1/4 inch port sits in the middle of the 200/300/400/600 range, and the right step depends on the air demand of the circuit - flow is published as curves, not a single rating, so have us check the curve against your consumption before ordering. This unit uses the differential-pressure drain (the default); automatic (A) and manual (M) drains are available if you want hands-off condensate removal or deliberate periodic draining. The 40 um element fitted here is the standard grade; specify W for the 5 um fine grade if downstream equipment needs cleaner air. The square gauge is fitted and reads in psi (scale 2); MPa and bar scales and an external round gauge are alternatives. Thread is G (BSPP) on this code - PT is the standard thread and G or NPT are catalogue options to order. A mounting bracket can be added if the code had not specified J (no bracket).
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 GFR300 series as curves rather than a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Send us your application's air demand and we will confirm the correct size from the datasheet curves before you order.
This code leaves the drain position blank, which is the differential-pressure type: condensate is expelled automatically as air flows through, with no operator action. The catalogue alternatives are A (automatic drain) and M (manual drain), and the regulator adjustment range differs by drain type - 0.15-0.9 MPa (20-130 psi) for this differential-pressure unit, while manual-drain versions open up to 0.05-0.9 MPa (7-130 psi).
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.