The AirTAC GFR30015ALJF2WTK AirTAC Filter Regulator NPT1/2 5um 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 PT1/2" 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 GFR30015ALJF2WTK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in one body, with a single bowl and one adjustment point. This configuration is built for 1/2 in NPT ports and carries an automatic drain that discharges collected condensate from the polycarbonate bowl, a 5 um filter element, a low-pressure regulator, an embedded square gauge reading in psi, and a reverse/check valve fitted. It serves non-freezing compressed air from -5 to 70 C at a maximum inlet pressure of 1.0 MPa (145 psi). No mounting bracket is included on this variant (code J).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and catalogue options include manual or differential-pressure drains, the 40 um standard element, alternative gauge scales (MPa, psi, bar), PT or G (BSPP) threads, and a mounting bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30015ALJF2WTK AirTAC Filter Regulator NPT1/2 5um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Automatic 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. |
|---|---|
| 15 | Port size PT1/2". 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)). |
| 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. |
| T | NPT 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Low-pressure air jets strip rinse water from bottles ahead of the labeler; this filter regulator cleans the supply and holds a gentle, stable setting at the knife manifold.
A lab or QC bench running low-pressure leak and actuation checks gets filtered air, automatic condensate removal and a psi gauge readout at the regulator.
Short-stroke cylinders on a carton-sealing conveyor run on filtered, regulated air, with the automatic drain clearing bowl condensate between shifts.
Size 300 with 1/2 in NPT ports sits mid-range in the GFR line; step down to 200 or up to 400/600 depending on the air demand of your circuit - we can check the published flow curves against your requirement before you order. This unit pairs an automatic drain (useful where the unit is not checked daily) with a 5 um element (code W) for finer particulate removal than the 40 um standard. The square gauge reads psi; MPa and bar scales are alternatives. On threads, PT is the AirTAC standard while G (BSPP) and NPT, as on this model, are order options. This variant omits the mounting bracket. If you also need lubrication downstream, a GFC two-unit or GC three-unit set adds a lubricator to the filter-regulator function.
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 a single rated figure, so we do not quote a number here. Tell us your line pressure and required flow and we will confirm the sizing from the datasheet on request before you order.
The A code fits an automatic drain that discharges collected condensate from the polycarbonate bowl without daily attention. Manual and differential-pressure drains are catalogue alternatives across the GFR series if your maintenance routine suits them better.
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.