The AirTAC GFR30008AJC1T 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 automatic 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 GFR30008AJC1T is a GFR300 filter regulator: filtration and pressure regulation combined in a single body, with a 1/4 in NPT port. It removes water and particulate from compressed air with the standard 40 um filter element, then regulates downstream pressure across the standard range of 0.15-0.9 MPa (20-130 psi). This configuration carries the automatic drain, so condensate collected in the PC bowl is expelled without manual attention, and it is fitted with the round external gauge on the MPa scale for direct reading of set pressure. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). No reverse/check valve is fitted and no mounting bracket is included in this code.
This is a genuine AirTAC part. The GFR filter-regulator line is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, in PT (standard), G and NPT threads, with differential-pressure, automatic or manual drains, 40 um or 5 um (W) filter grades, and square or round gauges on MPa, psi or bar scales. Flow is published in the catalogue as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR30008AJC1T 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 | Standard 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 | Automatic 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (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) |
Point-of-use preparation for the clean, regulated air feeding tool changers, clamps and pneumatic actuators on a machining centre, with automatic drain keeping the bowl clear through multi-shift running.
Filtering and regulating the air that drives tape heads, cylinders and vacuum generators at a carton sealer, so set pressure holds steady while condensate is drained automatically.
Conditioning the supply to grippers and suction circuits on a robot cell, protecting downstream valves from water and grit while the MPa gauge gives operators a visible set-point.
Start with the size and port: this unit is size 300 with a 1/4 in NPT port; larger sizes (400, 600) carry larger ports and higher flow capacity, so step up if your line demand is beyond what a 300-size body serves - we can check the flow curves against your consumption before you order. The automatic drain on this code suits unattended duty; choose manual drain if you prefer controlled, scheduled blowdown, or the differential-pressure default where drain behaviour should follow the pressure differential. The 40 um element is the standard grade; specify the W code for the 5 um element where finer particulate removal is needed. The round gauge here reads in MPa; psi and bar scales are order options, and the embedded square gauge is the alternative style. Thread is NPT on this code, with PT as the standard and G available to order. Note this code has no mounting bracket (J); brackets are optional on GFR units.
Be aware that flow is published as curves, not a single rated number, so there is no one rated-flow figure to quote. Ask us to confirm sizing against your application from the datasheet 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 GFR series as curves, not as a single rated figure, so there is no one rated-flow number we can state. Tell us your line pressure and air consumption and we will confirm the sizing from the datasheet on request.
The A in the code sets the automatic drain, which expels condensate from the bowl without manual intervention - useful on unattended or continuous-duty installations. The C1 sets the round external gauge on the MPa scale; square gauges and psi or bar scales are available as order options if you prefer them.
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.