The AirTAC GFR30010LF3T AirTAC Filter Regulator 3/8 in NPT 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 PT3/8" 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 GFR30010LF3T is a size-300 GFR filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has 3/8 in NPT ports, the standard 40 um filter element, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an embedded square gauge reading in bar. It is the low-pressure (L) type, intended for circuits that run below standard line pressures - ask us to confirm the adjustment range against your set pressure.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, optional 5 um (W) filtration, manual or automatic drain variants, and G or NPT thread options. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request before you order.
| Model | GFR30010LF3T AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (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, bar scale |
| Reflux valve | Not fitted |
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. |
|---|---|
| 10 | Port size PT3/8". 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 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. |
| (blank) | No reverse-flow valve (the default). |
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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Point-of-use conditioning ahead of spray guns on a finishing line: water and dirt are stripped from the shop air and the gun feed pressure is set and held at the low pressure the coating process calls for, with the bar-scale gauge giving the operator a direct reading.
Feeding clamping cylinders on a CNC fixture circuit, where clean, dry air protects the cylinder seals and a stable, reduced supply pressure keeps clamp force consistent part after part.
Conditioning and regulating the air feeding a directional-valve manifold on a cartoning or filling line, protecting the valves from condensate carryover while holding the pressure the actuator circuit was designed around.
Step up or down through the GFR sizes (200/300/400/600) and their port sizes (1/8 to 1 inch) according to the air demand of the circuit - the 300 size with 3/8 in NPT ports sits in the middle of the range. Choose the drain: differential-pressure (this unit, automatic in service), fully automatic (A), or manual (M). The 40 um element is standard; specify W for 5 um where finer particulate removal is needed. The embedded square gauge is fitted here with a bar scale; psi and MPa scales and an external round gauge are alternatives. Threads come as PT (standard), G (BSPP) or NPT - this code is the NPT option. A mounting bracket is included.
Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application - supply pressure, set pressure and downstream demand - before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not as a single rated number, so we do not quote a figure here. Send us your application details and we will confirm the flow and sizing data from the datasheet on request before you order.
L marks the low-pressure regulator type, intended for circuits that operate below standard line pressures - contact us to confirm the adjustment range for your set pressure. The drain is the differential-pressure type (blank position in the code): collected condensate is bled off automatically as air flows through the bowl, with no manual intervention in normal service.
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.