The AirTAC GFR30008LC1T AirTAC Filter Regulator 1/4 in NPT 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 PT1/4" 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 GFR30008LC1T is a 300-size filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration is built with a 1/4 in NPT port, the low-pressure regulator type for circuits that run at reduced set pressures, a 40 um standard filter element, and a differential-pressure drain that bleeds collected condensate automatically as flow passes through. A round MPa-scale gauge is fitted so the set pressure is visible at a glance, the polycarbonate bowl keeps the sump easy to check, and a mounting bracket is included for secure panel or frame installation.
This is a genuine AirTAC part from the G-series range, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, drain choices, 5 um (W) filtration, gauge and thread variants. Flow is published in the catalogue as curves rather than a single rated figure, so ask us to confirm sizing or any datasheet figure for your application before ordering.
| Model | GFR30008LC1T AirTAC Filter Regulator 1/4 in NPT |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (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, 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. |
|---|---|
| 08 | Port size PT1/4". 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. |
| (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 · PT1/4" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Feeds spray guns on a finishing line where the regulator holds a lower set pressure for atomising air while the 40 um element keeps water and pipe scale out of the paint circuit.
Conditions the air feeding gripper and vacuum-generator valves on an assembly robot, with the round MPa gauge letting technicians verify set pressure during changeover.
Installed at each loom's drop to filter condensate from the mill air ring main and regulate the supply to jet nozzles, with the differential-pressure drain handling condensate as the loom cycles.
Start with the port step: this unit is the 300 size with a 1/4 in NPT port; larger sizes (400, 600) carry bigger ports and higher flow capacity, so match the size to the air demand of the circuit. Choose the drain type where it matters: differential-pressure (as fitted here) drains with flow, automatic (code A) drains on a cycle, and manual (code M) needs an operator. Filtration is 40 um standard; specify 5 um (code W) where finer protection is needed. Gauge scale can be MPa, psi or bar, and thread is PT as standard with G (BSPP) and NPT as order options - the T suffix on this code selects NPT. A bracket is included on this unit; code J removes it.
Because catalogue flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against 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 capacity curves in the catalogue, not as a single rated number, so there is no honest one-line figure we can quote. Tell us your application's air demand and we will confirm the sizing against the datasheet curves on request before you order.
The L code selects the low-pressure regulator variant, intended for circuits that operate at reduced set pressures rather than the full standard range. The exact adjustment range for this variant is not published in the sheet we work from, so confirm your required set pressure with us and we will verify it against the datasheet.
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.