The AirTAC GFR30010LC3T AirTAC Filter Regulator 3/8 in NPT 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 differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR30010LC3T is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single 300-size body with a 3/8 in NPT port. This unit is the low-pressure type, so it is set up for circuits that hold a lower regulated pressure than a standard unit is intended for; the exact adjustment range for the low-pressure type is not published, and we will confirm it from the datasheet on request. It carries a 40 um filter element, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, a round pressure gauge scaled in bar, and a mounting bracket.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of PT, G (BSPP) or NPT threads, manual, automatic or differential-pressure drains, a 5 um element option, gauge and scale choices, and an optional reverse/check valve. Flow is published as curves rather than a single rating, so ask us to confirm flow and datasheet figures against your application before ordering.
| Model | GFR30010LC3T AirTAC Filter Regulator 3/8 in NPT Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 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. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Filter-and-regulate the supply to workholding clamps on a machining centre, keeping chips and condensed water out of the clamp cylinders while holding a low regulated pressure suited to the fixture.
Condition the air feeding a cartoning or wrapping line's cylinders, protecting the actuators from water and debris while the low-pressure type holds the gentle set pressure the machine's valves were set up for.
Serve a bank of low-pressure pneumatic control components from a plant air drop: the 40 um element stops particulate carryover and the regulator holds the reduced pressure the panel was designed around.
Start with size and port: the 300 size with a 3/8 in NPT port sits mid-range in the GFR line, and the correct step up or down depends on the air demand of the circuit, which we confirm from the published flow curves rather than a single rated figure. This unit is the low-pressure type; if your set pressure needs the standard range instead, ask us to match the right variant. The differential-pressure drain needs no daily attention, though manual and automatic drain variants exist. The 40 um element is standard; a 5 um element (code W) is available where finer filtration is wanted. The round gauge is scaled in bar; square embedded gauges and MPa or psi scales are alternatives. NPT is built into this code; PT and G (BSPP) are order options. A mounting bracket is included.
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 this series as curves, not as a single rated number, so we do not quote a figure that could mislead your sizing. Send us your application's air demand and we will confirm the flow from the datasheet curves before you order.
It is a regulator variant intended for circuits that hold a lower regulated pressure than the standard type is aimed at. The exact adjustment range for the low-pressure type is not published in the material we hold, so we confirm it from the datasheet on request. Everything else about this unit decodes normally: 3/8 in NPT port, 40 um element, differential-pressure drain, round bar gauge, bracket included.
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.