The AirTAC GFR30015LJF2WK AirTAC Filter Regulator PT1/2, 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 PT1/2" 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 GFR30015LJF2WK is a 300-size filter regulator that cleans compressed air and holds downstream pressure in a single body. This configuration carries a 5 um filter element (code W) for finer water and particulate removal than the standard 40 um grade, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, a low-pressure regulator type for applications that work below standard pressure settings, an embedded square gauge reading in psi, and a built-in reverse/check valve that holds downstream pressure when the upstream supply is removed. The port is PT1/2 (1/2 in PT thread), and the PC (polycarbonate) bowl lets you see the condensate level at a glance. No mounting bracket is fitted (code J).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, standard or low-pressure regulation, gauge scale options, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR30015LJF2WK AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (PT 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 | 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. 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". |
| (blank) | Drain: Differential-pressure 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. |
| (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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding cleaned, regulated low-pressure air to the gripper and clamp cylinders on a carton-forming and sealing line, with the 5 um element protecting the directional valves from particulate carryover.
Holding fixture pressure steady on a CNC clamping fixture where the check valve keeps the clamps engaged if the shop air supply drops, and the psi gauge gives the operator a direct readout.
Conditioning a 1/2 in branch line that feeds low-pressure pneumatic controls on a process skid, with the differential-pressure drain keeping condensate out of the downstream instruments.
Size and port: this unit is 300 size with a 1/2 in PT port - step up to 400 or 600 if your line needs more flow, or down to 200 for compact circuits. Filtration: the fitted 5 um element (code W) suits valves and actuators that need cleaner air than the 40 um standard grade. Drain: the differential-pressure drain is the fit-and-forget choice; choose automatic (A) or manual (M) if your maintenance routine prefers it. Regulation: this is the low-pressure type (code L), intended for circuits that run below standard pressure settings - its exact adjustment range is not published, so confirm it with us. The square gauge reads in psi; MPa and bar scales and an external round gauge are alternatives. Thread: PT is the standard here, with G (BSPP) and NPT available to order. No bracket is fitted (code J).
Flow for this family is published as curves, not a single rated figure, so send us your application details and we will confirm sizing against the 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.
AirTAC publishes flow for the GFR series as curves rather than a single rated figure, so there is no one l/min or SCFM number we can honestly quote. Send us your application details and we will confirm the sizing against the datasheet before you order.
The L in the code marks this as the low-pressure regulator type, intended for circuits that run below standard pressure settings; its exact adjustment range is not published, so confirm it with us. The K marks a built-in reverse/check valve, which holds downstream pressure when the upstream supply is removed. The 5 um element (W) and square psi gauge (F2) are also decoded from the code.
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.