The AirTAC GFR30010MLJC2 AirTAC Filter Regulator PT3/8 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 AirTAC GFR30010MLJC2 is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This unit is built on the 300 size with PT3/8 ports, a polycarbonate bowl with manual drain, and the standard 40 um filter element. It is the low-pressure type, intended for circuits that run below standard line pressure, and it carries an external round pressure gauge reading in psi. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. No mounting bracket is fitted.
This is a genuine AirTAC part. The GFR family spans 200, 300, 400 and 600 sizes with ports from 1/8 to 1 inch, and options that include automatic or differential-pressure drains, a 5 um element (code W), embedded square or external round gauges scaled in MPa, psi or bar, G (BSPP) or NPT threads in place of PT, and a mounting bracket. Because rated flow is published as curves rather than a single figure, we confirm flow and any datasheet figure on request before you order.
| Model | GFR30010MLJC2 AirTAC Filter Regulator PT3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (PT 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 | 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). |
| 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. |
| (blank) | PT 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) |
On packaging or converting lines where glue and coating heads are run below standard line pressure, this unit filters the supply and holds the reduced setting steady, with the psi gauge giving the operator a direct reading at the setpoint.
Supplying spray guns in a wood-finishing booth: the 40 um element strips water and particulate before the gun, the regulator holds a consistent atomising pressure, and the manual drain is bled at the end of each shift as part of booth housekeeping.
On a filling or capping machine, actuated valves need clean air at a stable reduced pressure to seat and release predictably; this filter regulator conditions the branch feed and the round psi gauge lets technicians verify the setting during changeover.
The real choices on this family are all decodable from the code. Step the size (200/300/400/600) and port (1/8 to 1 inch) to match the air your line consumes. Pick the drain to suit attendance: differential-pressure (default), automatic (A) for unattended bleed-off, or manual (M, as here) where someone can open the bowl drain routinely. Choose the 40 um standard element or the 5 um W grade for finer protection of downstream equipment. Gauges are the embedded square type or an external round gauge, scaled in MPa, psi or bar; this unit reads psi. Thread is PT as standard, with G (BSPP) and NPT available to order, and a bracket is optional (not fitted on this code). Flow is published as curves, not a single rating, so send us your application and we will confirm sizing from 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 GFR300 series as curves rather than a single rated figure, so we do not quote a number on the page. Send us your application details - port size, line pressure and the equipment being fed - and we will confirm the flow and sizing from the datasheet on request.
The M in the code specifies a manual drain: collected water is discharged by opening the bowl drain by hand, which suits installations that are visited daily. If the unit will run unattended, the same GFR300 size is available with an automatic (A) or differential-pressure drain - ask us and we will quote the alternative 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.