The AirTAC GFR30010MLJF3WT AirTAC Filter Regulator NPT3/8, 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR30010MLJF3WT is an AirTAC GFR300 filter regulator: a 5 um filter element and a pressure regulator combined in one body, so the air is cleaned of water and particulate and then reduced to your working pressure in a single unit. This configuration has 3/8 in NPT ports, a manual drain bowl in polycarbonate, the low-pressure regulator type, an embedded square gauge reading in bar, and no mounting bracket or reverse/check valve. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
It is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and options include 40 um or 5 um filtration, differential-pressure, automatic or manual drains, standard or low-pressure regulation, gauge scale in MPa, psi or bar, G/NPT threads and brackets. 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 | GFR30010MLJF3WT AirTAC Filter Regulator NPT3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 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. |
| 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) |
Supplies filtered, regulated air to clamp cylinders on a CNC fixture line, with the 5 um element protecting the clamping valves and the low-pressure regulator holding a gentle, consistent clamp pressure.
Feeds clean, low-pressure air to lab analysers, sample purging and pneumatic controls, where fine 5 um filtration and a bar-reading gauge keep the supply visible and repeatable.
Conditions the air feeding diverters, gates and small actuators along a packaging conveyor, with the manual drain letting an operator bleed accumulated condensate at shift checks.
Choose the size and port step (200/300/400/600, 1/8 to 1 in) against the flow your line needs - the 300 size with 3/8 in NPT ports suits mid-range circuits. Drain choice matters: manual here means you bleed the bowl by hand, while automatic and differential-pressure drains discharge condensate without attention. The W code selects the 5 um element over the 40 um standard - pick 5 um where downstream valves or instruments need finer air. The gauge reads in bar on this unit (MPa and psi scales are also available), and the thread is NPT; PT is the standard and G (BSPP) is an order option. A bracket is optional and this unit omits one. Flow is published as curves, not a single rating, so 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR flow as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure and required flow and we will confirm sizing against the datasheet on request.
W selects the finer 5 um filter element instead of the 40 um standard, and L marks the low-pressure regulator type rather than the standard one. The exact regulation span of the low-pressure type is not published in the catalogue, so we confirm it on request; maximum inlet pressure remains 1.0 MPa (145 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.