The AirTAC GFR30008JF2WK AirTAC Filter Regulator 1/4 in PT, 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 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 GFR30008JF2WK is a size-300 filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration carries a 1/4 in PT port, a 5 um filter element (the finer W grade, versus the standard 40 um), a differential-pressure drain that bleeds condensate automatically as flow passes through, an embedded square gauge reading in psi, and a built-in reverse (check) valve. It ships without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulation range is 0.15-0.9 MPa (20-130 psi), and the operating temperature is -5 to 70 C (non-freezing). The polycarbonate bowl keeps the condensate level visible at a glance.
This is a genuine AirTAC part in the GFR300 series, one of four sizes (200, 300, 400, 600) with port options from 1/8 in to 1 in and thread choices of PT (standard), G or NPT. Filter grade, drain type, gauge scale and check-valve fitment can all be specified per code. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR30008JF2WK AirTAC Filter Regulator 1/4 in PT, 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, psi 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.
| 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. |
| 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. |
| 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.
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) |
Mounted ahead of a pneumatic press or clamping cylinder, this unit filters machining moisture and chips-grade particulate down to 5 um and holds a set working pressure, while the check valve holds the circuit against backflow.
On a machining centre's shop-air drop, the 5 um element and regulated output condition the air feeding tool-change actuators and air-blast nozzles, with the psi gauge giving operators a direct setpoint readout.
Feeding the cylinders and air jets of a packaging or filling line, this filter regulator keeps water carryover out of the valves and maintains consistent actuator pressure across shift changes, draining condensate as flow passes.
Start with the port step: this unit is 1/4 in PT in the size-300 body, so size up to 400 or 600 if your line needs more flow capacity, or down to 200 for compact circuits. Choose the drain to match the installation: differential-pressure (as here) suits lines with steady flow, automatic suits intermittent duty, and manual suits supervised positions. The 5 um element in this code protects downstream components more finely than the 40 um standard - pick 40 um where coarse protection is enough. Gauge scale is psi here; MPa or bar scales and an external round gauge are alternatives. Thread is PT as standard, with G and NPT available to order.
One honest note before you order: flow for this series is published as curves, not a single rated figure, so we cannot quote a number here. Send us your application details and we will confirm sizing against the datasheet on request.
Quick checklist
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 publishes flow for the GFR series as curves, not as a single rated figure, so we do not state a number here. Tell us your application and required flow, and we will confirm the datasheet curve and correct sizing for you on request before you order.
The W in the code GFR30008JF2WK selects the optional 5 um filter element instead of the 40 um standard, giving finer protection for sensitive downstream components. The K selects a built-in reverse (check) valve. Both are catalogue options on the GFR series; the 40 um, no-check-valve versions are available as separate codes.
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.