The AirTAC GFR30015LJF2TK AirTAC Filter Regulator NPT1/2 Low-Pressure is a genuine G-series filter regulator: water separation, 40 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 GFR30015LJF2TK is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit is configured with 1/2 in NPT ports, the standard 40 um filter element, a differential-pressure drain, an embedded square gauge scaled in psi, the low-pressure regulator type, and a built-in reverse (check) valve; no mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing). The bowl on this size is polycarbonate (PC).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, PT as the standard thread and G (BSPP) or NPT as order options, a choice of differential-pressure, automatic or manual drains, a 5 um (W) element where finer filtration is needed, and optional brackets and external round gauges. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR30015LJF2TK AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 40 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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Conditions and regulates the air feeding clamp cylinders on a low-pressure press or fixture station: the 40 um element keeps water and swarf out of the valves, the psi gauge gives the operator a direct setting reference, and the built-in check valve holds the downstream circuit.
Mounted at the drop feeding carton-sealing and case-erector machinery, where the filter-regulator cleans the shop air and holds a stable low-pressure setting for sensitive actuator circuits, with the differential-pressure drain clearing collected condensate as air flows.
Suits laboratory automation rigs and pilot-scale process skids running on low-pressure air: the low-pressure regulator type matches modest setpoints, the square psi gauge suits US-market readouts, and the compact size 300 body fits tight panels without a bracket.
Size and port set the capacity step: this unit is size 300 with 1/2 in NPT ports; move to size 200, 400 or 600 as your air demand and piping require. Drain choices are differential-pressure (this unit, the default), automatic (code A) or manual (code M); the standard filter grade is 40 um, with a 5 um element (code W) for finer filtration. The embedded square gauge on this model reads in psi (gauge scales: 1 = MPa, 2 = psi, 3 = bar), and code K adds a reverse/check valve. Thread here is NPT; PT is the catalogue standard and G (BSPP) is an order option, and brackets are optional (J = none fitted). Because flow is published as curves rather than a single rated figure, 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 family as curves, not as a single rated figure, so we do not quote a number on the page. Tell us your application and air demand and we will confirm the sizing from the datasheet curves on request before you order.
L marks the low-pressure regulator type, as opposed to the standard version. The exact regulation range for the low-pressure type is not published in the standard table, so we confirm it on request; the standard GFR range is 0.15-0.9 MPa (20-130 psi) with differential-pressure or automatic drain and 0.05-0.9 MPa (7-130 psi) with manual drain. This unit also carries code K, a reverse/check valve, and a square gauge scaled in psi.
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.