The AirTAC GFR30008MLJF2WGK AirTAC Filter Regulator G1/4, 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR30008MLJF2WGK is a 300-size filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a G1/4 (BSPP) port, a 5 um filtration element (the finer of the two published grades), a manual drain for emptying the PC bowl by hand, and a low-pressure regulator type whose exact adjustment range is not published in the material we hold - ask us to confirm it. It is fitted with an embedded square gauge reading in psi and a reverse/check valve, and it comes without a mounting bracket.
This is a genuine AirTAC part. The GFR range is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of drain types, 40 um or 5 um filtration, gauge scale options and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for this model on request.
| Model | GFR30008MLJF2WGK AirTAC Filter Regulator G1/4, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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 | Manual 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure 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. |
| G | G (BSPP) 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) |
Feeds a clamping or riveting press where the air must first be stripped of water and fine particles, then held at the low, stable pressure the tooling was set up for; the psi gauge lets the setter read the setting directly.
Supplies the cylinders that raise, divert and stop packs on a food or consumer-goods conveyor, with the 5 um element protecting the small control valves from particulate carryover and the check valve holding the circuit if supply dips.
Provides clean, regulated air to instruments and test fixtures on a lab bench, where the low-pressure regulator type suits sensitive downstream equipment and the manual drain suits intermittent, supervised use.
Size and port step up together through 200, 300, 400 and 600, so pick the size whose published flow curve covers your air demand at your working pressure - we will check the curve against your application before you order. Drain choice matters: manual (this unit) means someone empties the bowl; automatic and differential-pressure drains discharge condensate without attention. Filtration is 40 um standard or 5 um (this unit, code W) for finer protection. The embedded square gauge is standard and this one reads psi; MPa and bar scales and an external round gauge are alternatives. Thread is PT as standard, with G (this unit) and NPT as order options; a bracket can be added if this no-bracket version needs panel fixing.
Because flow is published as curves and not a single rating, ask us to confirm sizing against your application before ordering.
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 this series as curves, not as a single rated number, so we do not quote a l/min or SCFM figure. Send us your line pressure and air demand and we will confirm the sizing from the datasheet curve on request.
This configuration carries code M, a manual drain: the PC bowl is emptied by hand, which suits supervised or intermittent duty. If the unit runs unattended, the automatic (code A) or differential-pressure (blank) drain versions discharge condensate without attention - we can quote those variants.
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.