The AirTAC GFR30010MLC2 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 GFR30010MLC2 is a 300-size filter regulator that cleans compressed air and holds a set downstream pressure in one body. This configuration carries a PT3/8 (3/8 in) port with PT thread, a 40 um standard filter element, a manual drain bowl in polycarbonate, a low-pressure regulator type, and a round gauge scaled in psi. The manual drain lets an operator empty collected water and contaminants on a chosen service schedule, which suits installations where an automatic drain is not wanted.
This is a genuine AirTAC part from the GFR300 series. The GFR line is available in sizes 200, 300, 400 and 600 with a choice of ports, threads (PT standard, G and NPT as order options), drain types, 40 um or 5 um filtration, gauge styles and scales. Flow figures are published as curves rather than a single rating, so we confirm the datasheet and sizing on request.
| Model | GFR30010MLC2 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. |
| (blank) | Mounting bracket included. |
| (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) |
Feeding clean, regulated low-pressure air to the cylinders and actuators on a carton-forming or wrapping line, with the 40 um element stopping pipe scale and water reaching the valve stack.
Conditioning shop air at a test rig or lab bench where a low-pressure regulator type is required and the operator drains the bowl manually between runs.
Regulating supply pressure to a workholding clamp circuit on a machining centre, with the psi-scaled round gauge letting setters check and adjust clamp pressure at the fixture.
Size and port step up from 200 through 600, so match the 300 size and its PT3/8 port against the pipe diameter and the air demand of the circuit. This unit uses a manual drain: choose it when an operator can bleed the bowl at set intervals; pick automatic or differential-pressure drain codes if unattended water removal matters. The 40 um element is the standard grade for general air preparation; the W code gives 5 um where finer protection is needed. The C2 code fits a round gauge scaled in psi; square gauges and MPa or bar scales are alternatives. PT is the standard thread, with G (BSPP) and NPT available to order, and a mounting bracket is included. Flow is published as curves, not a single rated figure, 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 flow for the GFR300 series as curves, not as a single rated figure, so no flow number is quoted here. Send us your air demand and line conditions and we will confirm the sizing and the datasheet figures on request before you order.
The M code fits a manual drain: collected water and contaminants are emptied by hand on a service schedule, instead of bleeding off automatically as with the A (automatic) or differential-pressure drain codes. The L code selects the low-pressure regulator type, intended for circuits set below the standard range; the exact adjustment range for this low-pressure variant is not published in the sheet we work from, so we confirm it 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.