The AirTAC GFR30010LF3WT AirTAC Filter Regulator 3/8 in NPT, 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 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 GFR30010LF3WT is a GFR300-series filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single compact body. This configuration is built with a 3/8 in NPT port, a fine 5 um filter element (the W grade, versus the standard 40 um), a low-pressure regulator type for circuits that run at reduced set pressures, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an embedded square gauge reading in bar. The polycarbonate bowl suits the 300 size, and a mounting bracket is included.
This is a genuine AirTAC part. The G-series filter regulator line spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, PT, G or NPT threads, and gauge or no-gauge variants. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR30010LF3WT AirTAC Filter Regulator 3/8 in NPT, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (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 | 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. |
| 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. |
| (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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeding clean, pressure-set air to the tool-change clamps and pneumatic actuators on a machining centre, where the 5 um element protects close-tolerance valves from water and fine particulate.
Conditioning the air that drives divert gates, pushers and bag-seal cylinders on a packaging conveyor, with the low-pressure regulator type holding a reduced set pressure for gentle product handling.
Supplying filtered, regulated air to sample-handling grippers and small actuator banks on laboratory automation equipment, where the bar-scale gauge gives operators a clear local pressure reference.
Choose your GFR size by the port step and the flow your line needs: this unit is size 300 with a 3/8 in NPT port. The 5 um element here is the finer option - pick it when downstream valves, cylinders or instruments need cleaner air than the standard 40 um grade; the trade-off is a slightly higher pressure drop across the element. Drain type matters: this unit uses the differential-pressure drain (the default), while automatic and manual drains are available in the series. The embedded square gauge here reads in bar; MPa and psi scales and an external round gauge are options. PT is the standard thread and G or NPT are ordered variants - this unit is the NPT version. A mounting bracket is included.
One honest note before you order: AirTAC publishes flow for this family as curves, not a single rated figure, so send us your application details and we will confirm sizing against the datasheet before you commit.
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 rather than a single rated figure, so there is no one l/min or SCFM number we can quote honestly. Send us your inlet pressure and demand profile and we will confirm the sizing against the datasheet on request before you order.
This GFR300 configuration uses the differential-pressure drain (the series default): condensate collected in the bowl is bled off automatically as air flows through the unit, with no operator action needed. If your application has low or intermittent flow where differential draining is less effective, the same size is available with an automatic or a manual drain - just ask for that variant 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.