The AirTAC GFR30015ALJC2WGK AirTAC Filter Regulator G1/2 Low-Pressure 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 GFR30015ALJC2WGK is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is the 300 size with G1/2 (BSPP) ports, the 5 um filter element (code W, finer than the 40 um standard), an automatic drain that ejects collected condensate without manual attention, and the low-pressure regulator type for circuits that run below standard regulation ranges. It also carries a reverse/check valve (code K), an external round gauge reading in psi, and is supplied without a mounting bracket (code J).
This is a genuine AirTAC part from the GFR series, which spans the 200, 300, 400 and 600 sizes with port options from 1/8 to 1 inch, PT as the standard thread and G or NPT as order options, manual or differential-pressure drain choices besides the automatic drain fitted here, and both filter grades. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30015ALJC2WGK AirTAC Filter Regulator G1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) 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 — 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. 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). |
| 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. |
| 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
On a cartoning or wrapping line where actuators and clamps are specified to run at reduced pressure, this GFR300 filter regulator cleans the shop air to 5 um, holds the reduced setting, and its automatic drain keeps condensate off the machine during continuous shifts.
Feeding conveyor gate, divertor and stopper cylinders along a 1/2-inch air main, the unit strips water and fine particles before regulation, the check valve holds the downstream circuit if supply dips, and the psi gauge lets line staff verify set pressure at a glance.
On a test bench or laboratory rig supplied from a shop compressor, the 5 um element protects sensitive instruments and pneumatic controls from water and particulate, while the low-pressure regulator type and round psi gauge suit circuits specified well below standard line pressure.
Within the GFR family the real choices are: size and port (200/300/400/600, ports 1/8 to 1 inch) stepped against the flow your line needs; drain type - automatic as fitted here, or manual, or the differential-pressure default; filter grade - the 40 um standard element or the finer 5 um (W) element fitted to this unit; gauge - the embedded square gauge standard on regulator-equipped units, or an external round gauge in MPa, psi or bar scales (this unit has the round psi gauge); thread - PT standard, with G (BSPP) or NPT as order options; and bracket - included by default or omitted with code J as here. The L code also marks this as the low-pressure regulator type. Flow is published as curves, not a single rating, so please 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 the GFR series as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Tell us your application and required flow, and we will confirm the sizing against the datasheet curves on request before you order.
The A in the code GFR30015ALJC2WGK selects the automatic drain, which ejects collected condensate on its own instead of waiting for a manual or differential-pressure drain cycle - useful on unattended or continuous-duty lines. The W selects the 5 um filter element instead of the 40 um standard, for finer protection of downstream equipment. The L marks the low-pressure regulator type, and its exact regulation range is not published in the standard tables, so ask us to confirm it on request.
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.