The AirTAC GFR30010MLJF1WT 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 AirTAC GFR30010MLJF1WT is a size-300 GFR filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a 5 um filter element (code W, vs the standard 40 um), a manual drain on the PC bowl, the low-pressure regulator type, an embedded square gauge scaled in MPa, and no mounting bracket or reverse/check valve. The port is 3/8 in with NPT thread. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and with choices of drain type, filter grade, gauge style and scale, thread (PT standard; G and NPT as options), bracket and low-pressure type. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GFR30010MLJF1WT 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, MPa 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. |
| 1 | Gauge scale: MPa. 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) |
A fixture clamping circuit on a CNC machining centre needs clean, dry air held at a steady, lower setting so clamps grip consistently part after part. This filter regulator conditions the supply line and its manual drain lets maintenance purge accumulated water during scheduled checks.
Packaging machines run many directional valves that are sensitive to water and particles. Feeding the valve island through this 5 um filter regulator keeps the control air clean while holding the supply pressure the machine builder specifies, with the MPa gauge giving operators a direct reading.
A pick-and-place cell with delicate handling needs its gripper air supplied at a gentle, stable setting rather than full line pressure. The low-pressure regulator type in this unit is intended for circuits running below the standard set range, and the filter section protects the gripper's seals from water and debris.
Size and port: the 300 size steps up from 200 in both port and flow capacity, and this unit takes a 3/8 in NPT port - match the size step to the air demand of the circuit rather than the pipe alone. Filter grade: 5 um (this unit, code W) suits finer protection than the 40 um standard; choose 40 um where general water and particle removal is enough. Drain: manual drain means someone opens the bowl drain periodically - choose automatic or differential-pressure drain where the unit is hard to reach. Gauge: this unit has the embedded square gauge with MPa scale; psi or bar scales and an external round gauge are alternatives. Thread: PT is the standard; G (BSPP) and NPT (this unit) are catalogue options to order. Bracket: this configuration has none (code J); a bracket is available on other codes. Because flow is published as curves and not a single rating, 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. 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 characteristic curves, not as a single rated number, so we do not quote a l/min, m3/h or SCFM figure. Tell us your application - inlet pressure, set pressure and the air demand of the equipment - and we will confirm the flow and sizing from the datasheet on request before you order.
Manual drain (code M on this model) means accumulated condensate is released by opening the bowl drain during maintenance rounds. If the unit sits where it cannot be reached regularly, choose an automatic-drain code instead so condensate is expelled without intervention. Note that the regulator adjust range is split by drain type: manual-drain units adjust from 0.05 to 0.9 MPa (7-130 psi), while automatic and differential-pressure-drain units adjust from 0.15 to 0.9 MPa (20-130 psi). This model is the low-pressure type, so ask us to confirm its exact published range on request.
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.