The AirTAC GFR30010LC2GK 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 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 AirTAC GFR30010LC2GK is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 300-size unit carries a G3/8 (BSPP) port, the standard 40 um filter element, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough. It is the low-pressure (L) type, so the regulator is set up for circuits that run below standard line pressure; the exact adjustment range for the low-pressure version is not published in the summary data, so confirm it with us before ordering. A round pressure gauge on a psi scale is fitted, a reverse/check valve holds downstream pressure if the supply drops, and the mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and options include manual or automatic drains, a 5 um (W) element, different gauge scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and datasheet figures against your application.
| Model | GFR30010LC2GK AirTAC Filter Regulator G3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 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, 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". |
| (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. |
| 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) |
Feeds a light-duty pneumatic press or clamping fixture that runs below standard shop pressure, with filtered air, a psi gauge for setpoint checks, and a check valve holding the clamp if supply pressure drops.
Conditions air for carton-sealing and case-packing cylinders on a packaging conveyor: the 40 um element keeps water and debris out of valves, and the regulator holds a steady low-pressure setting for gentle product handling.
Supplies filtered, low-pressure regulated air to lab automation modules such as pick-and-place gantries and small actuator stations, where the psi gauge and check valve keep the circuit stable and repeatable.
Start with the port and size: this unit is size 300 with a G3/8 port; step up to 400 or 600 (or down to 200) when your line needs a different connection and flow path. The 40 um element is the standard grade; specify the W code if your circuit needs the 5 um option. Drain choice matters: this unit uses the differential-pressure drain (default), while automatic (A) and manual (M) drains are order options. The gauge fitted here reads in psi on a round body; embedded square gauges and MPa or bar scales are the other catalogue choices. The K code adds a reverse/check valve, and the bracket is included; PT is the standard thread with G and NPT available to order.
Because this is the low-pressure (L) type, its adjustment range differs from the standard version and the exact figure is not published in the summary data. Flow is likewise published only as curves, not a single rating, so ask us to confirm sizing and the low-pressure range against your application before ordering.
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 one number. Tell us your line pressure, set pressure and the equipment you are feeding, and we will confirm the flow from the datasheet against your application before you order.
L marks the low-pressure regulator type, intended for circuits that run below standard line pressure; its exact adjustment range is not published in the summary data, so confirm it with us. K means a reverse/check valve is fitted, which holds downstream pressure if the upstream supply drops. The unit also carries the standard 40 um element, a differential-pressure drain, a round psi gauge, and an included mounting bracket.
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.