The AirTAC GFR30008JC2WK 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 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 GFR30008JC2WK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration has 1/4 in PT ports, a 5 um filter element (the finer of the two published grades - 40 um standard, 5 um optional with code W), a differential-pressure drain on the bowl, and a round pressure gauge reading in psi. A reverse/check valve is fitted, and the unit is supplied without a mounting bracket. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi) with this differential-pressure drain. Maximum inlet pressure is 1.0 MPa (145 psi), the operating temperature range is -5 to 70 C (non-freezing), and the polycarbonate bowl suits this 300 size (only the 600 size uses an aluminium alloy bowl).
This is a genuine AirTAC part. The GFR filter-regulator family is available in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, in PT (standard), G and NPT threads, with manual, automatic or differential-pressure drains, 40 um or 5 um filtration, and a choice of gauge and scale. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application on request.
| Model | GFR30008JC2WK 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, 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). |
| 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. |
| 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) |
Feeding clean, regulated air to pneumatic clamps, tool-change cylinders and chip-clearing nozzles on a machining centre, with the 5 um element protecting fine control valves upstream of the spindle area.
Conditioning the air supply to a form-fill-seal or cartoning line, where the regulator holds a steady setting for sealing and product-push cylinders and the drain carries condensed water out of the bowl.
Supplying regulated air to gripper and lift cylinders at pick-and-place stations along a conveyor system, with the reverse/check valve helping hold the downstream circuit if the upstream supply is interrupted.
The real choices on this family are the size and port step (200/300/400/600, 1/8 in to 1 in) matched to the air demand of your circuit; the drain type (differential-pressure as here, automatic, or manual); the filter grade (40 um standard or 5 um with code W); the gauge style and scale (MPa, psi or bar); and the thread (PT standard, with G and NPT as order options). This unit is configured with a 5 um element, a differential-pressure drain, a psi-scale round gauge and a reverse/check valve, without a mounting bracket. Because flow is published as curves rather than one rated figure, send us your application details and we will confirm sizing against the AirTAC datasheet before you order.
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.
Flow for the GFR300 series is published as curves, not as a single rated number, so we do not quote a figure here. Send us your application details - port size, line pressure and the air demand of the downstream equipment - and we will confirm the sizing from the AirTAC datasheet on request.
The W selects the 5 um filter element instead of the 40 um standard grade. Choose 5 um where downstream valves, cylinders or instruments need finer filtration; 40 um suits general plant air. Both grades are catalogue options across the GFR filter-regulator family.
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.