The AirTAC GFR30010MLJC2GK AirTAC Filter Regulator G3/8, 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 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 GFR is AirTAC's filter regulator: one body that removes water and particulate from compressed air and then regulates the downstream pressure. This unit is the GFR300 size with a G3/8 (BSPP) port, a 40 um standard filter element and a manual drain, so the polycarbonate bowl is emptied by hand as part of routine checks. It is the low-pressure (L) type, its exact adjustment range is not published in the catalogue, and it carries a round gauge reading in psi plus a fitted reverse (check) valve; no mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options for automatic, manual or differential-pressure drains, a 5 um (W) element, embedded square or external round gauges in MPa, psi or bar scales, PT, G or NPT threads, brackets and a reverse valve. Flow is published only as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30010MLJC2GK AirTAC Filter Regulator G3/8, Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 40 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 — round, 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. |
|---|---|
| 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). |
| C | Gauge shape: Round. 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. |
| G | G (BSPP) 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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Filtered, low-pressure regulated air to the hold-down and clamp cylinders on a CNC router or panel-saw table, where the manual drain is emptied during scheduled shift checks and the psi gauge gives a local reading at the machine.
Conditioned air to the flap-tuck and sealing-jaw cylinders on a packaging conveyor running at low regulated pressure, with the fitted check valve blocking backflow and the 40 um element keeping water and debris out of the valves.
Water- and particle-free air at a controlled low pressure to the gun supply in a paint finishing booth, where the low-pressure type regulator and round psi gauge let the operator set and read the pressure at the point of use.
The real choices on this series: step through sizes 200/300/400/600 and ports 1/8 to 1 inch to match the air your line uses; choose the drain (manual as here, automatic, or differential-pressure); pick the element grade (40 um standard, 5 um with code W); and select the gauge (embedded square as standard, external round optional, in MPa, psi or bar scales). Thread is PT as the catalogue standard, with G and NPT available to order - this unit is specified with G (BSPP). A bracket can be added if panel or wall fixing is needed.
Two configuration points to note on this exact unit: it is the low-pressure (L) type, so confirm the adjustment range with us against your working pressure, and the fitted reverse (check) valve blocks backflow in the line. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature is -5 to 70 C, non-freezing. Flow is published as curves, not a single rating, so send us your application 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. The reflux valve permits reverse flow 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 we do not quote a number here. Tell us your application and required conditions and we will confirm the flow and sizing from the datasheet on request before you order.
Code M in this model specifies a manual drain: the polycarbonate bowl is emptied by hand, which suits installations checked on a routine. If nobody will attend the unit regularly, the same GFR300 size is available with an automatic (code A) or differential-pressure (blank) drain - ask us to quote the variant.
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.