The AirTAC GFR300C10ALJF3TK AirTAC Filter Regulator NPT3/8 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 See datasheet 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 GFR300C10ALJF3TK is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 3/8 in NPT port, a 40 um standard filter element, an automatic drain that ejects collected condensate without manual attention, and a low-pressure regulator type. A square pressure gauge scaled in bar is embedded in the body, a reverse/check valve is fitted, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part from the G-series range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, filter grades of 40 um or 5 um, differential-pressure, automatic or manual drains, and PT, G or NPT threads. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C10ALJF3TK AirTAC Filter Regulator NPT3/8 |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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. |
|---|---|
| C1 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Feeds filtered, pressure-controlled air to a pneumatic press cylinder, with the automatic drain keeping condensate out of the valve stack during unattended shifts.
Conditions and regulates the air supply driving conveyor stopper cylinders and diverters, with the reverse/check valve holding the set pressure if the upstream supply dips.
Supplies cleaned, regulated low-pressure air to blow-off nozzles that clear chips and dust from formed plastic parts between moulding cycles.
Start with the port step: this unit is the size 300 body with a 3/8 in NPT port; step up to size 400 or 600, or down to 200, if your line's flow demand points to a different port. Because the regulator here is the low-pressure type, confirm the control band you need with us before ordering - the exact range for this variant is not published in the standard tables. Choose the drain to suit access: automatic (this unit) for unattended duty, manual where you prefer a deliberate purge, or the differential-pressure default. The 40 um element suits general plant air; specify the W code for the 5 um grade if downstream equipment needs finer filtration. Gauge scale (MPa, psi or bar - bar here), thread (PT standard, G or NPT to order) and bracket inclusion are all selectable across the family. Flow is published as curves, not a single rated figure, so 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 this series as performance curves rather than a single rated figure, so there is no one number we can honestly quote. Send us your application details - line pressure, downstream demand and duty cycle - and we will confirm the sizing from the datasheet curves on request.
The L marks this as the low-pressure regulator type, intended for applications that control below the standard band; the exact range for this variant is not published, so confirm it with us before ordering. The A code means the bowl drains itself: collected condensate is ejected automatically during operation, so no manual purge is needed.
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.