The AirTAC GFR30010LC1WT AirTAC Filter Regulator NPT3/8 Low-Pressure is a genuine G-series filter regulator: water separation, 5 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 GFR30010LC1WT is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built with a 3/8 in NPT port, a 5 um filter element (code W) for finer filtration than the 40 um standard element, a differential-pressure drain that bleeds condensate automatically as flow passes through, the low-pressure type regulator for circuits that run below standard line pressures, and a round pressure gauge reading in MPa. A mounting bracket is included and the polycarbonate bowl lets you see the condensate level at a glance.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, standard or low-pressure regulation, and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the sizing and datasheet figures for your application before ordering.
| Model | GFR30010LC1WT AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 5 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, MPa 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. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
A CNC machining cell with pneumatic clamps and fixtures runs its actuation circuit through this unit: the 5 um element keeps spool and seal contamination down, while the low-pressure regulator holds the clamp circuit at the gentle setting the fixture designer intended.
On a water-treatment skid where air-operated valves and actuators run on a deliberately low supply pressure, the low-pressure type regulator gives finer control in that band, and the differential-pressure drain keeps condensate out of the valve pilots.
A cartoning or case-packing module with cylinders and air jets draws its supply through this filter regulator: clean, regulated air protects the cylinder seals and the round MPa gauge lets the line technician verify the setting at a glance during changeover.
Size 300 with a 3/8 in port sits in the middle of the GFR range: step up to 400/600 or down to 200 depending on the flow your line needs, and match the port to your piping. This unit carries the 5 um element (code W); choose the 40 um standard element if your downstream equipment tolerates coarser filtration. The low-pressure type regulator (code L) is the right pick for circuits that operate below standard line pressure - the exact adjustment range for this variant is not published in our sheet, so confirm it with us against your setpoint. Drain options are differential-pressure (fitted here), automatic (code A) or manual (code M). The gauge is the external round type reading in MPa; square embedded gauges and psi or bar scales are alternatives. Thread is NPT here; PT is the standard thread and G (BSPP) is also an order option. Flow is published as curves, not a single rating, so send us your application details and we will confirm sizing 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 GFR series as curves rather than a single rated figure, so we do not quote a rated flow, Cv or l/min number for this unit. Send us your application details - line pressure, downstream demand and porting - and we will confirm the sizing against the datasheet curves on request before you order.
The L in the code marks the low-pressure type regulator, intended for circuits that run below standard line pressures; the exact adjustment range for this variant is not published in our sheet, so confirm it with us against your setpoint. The drain is the differential-pressure type (blank code position): it vents accumulated condensate automatically as air flows through, with no daily manual draining. Automatic (A) and manual (M) drains are available as alternative configurations in the same series.
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.