The AirTAC GFR300C10AJF2 AirTAC Filter Regulator PT3/8, Auto Drain 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 GFR300C10AJF2 is a size-300 filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body. This configuration carries a PT3/8 port, a 40 um standard filter element, an automatic drain that expels collected condensate without manual attention, and an embedded square gauge reading in psi. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), and the unit is rated for a maximum inlet pressure of 1.0 MPa (145 psi) at -5 to 70 C (non-freezing). No mounting bracket is fitted and no reverse/check valve is included.
This is a genuine AirTAC part. The GFR series is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and with choices of drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um with code W), gauge scale (MPa, psi or bar) and thread (PT standard, with G and NPT as order options). Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request.
| Model | GFR300C10AJF2 AirTAC Filter Regulator PT3/8, Auto Drain |
|---|---|
| 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) |
Mounted at the drop feeding a packaging machine's cylinder group, it strips condensate and 40 um particulate from the shop air and holds a steady regulated pressure so carton-sealing and case-erecting strokes stay repeatable through the shift.
Installed ahead of a bench-mounted pneumatic press or clamp fixture, it cleans the supply and lets the operator set the working pressure with the psi gauge, while the automatic drain keeps the bowl clear without daily blowdown.
Fitted on the air preparation manifold of a machine control panel, it protects downstream valves and actuators from water and grit and provides a stable, gauge-monitored supply pressure for the whole circuit.
Size and port set the capacity envelope: GFR300 with its PT3/8 port sits in the middle of the range - step up to 400/600 for larger supply lines, down to 200 for compact circuits. Choose the drain to suit access: automatic (this unit) for unattended duty, manual where you want controlled blowdown, or differential-pressure as the default. Filter grade is 40 um as standard; specify code W for 5 um where finer particulate removal is needed. The embedded square gauge is fitted here with a psi scale; MPa or bar scales and an external round gauge are alternatives. Thread is PT as standard, with G (BSPP) and NPT available to order; a bracket can be added if the code calls for it.
One honest note on sizing: AirTAC publishes flow for this series as curves, not as a single rated number, so send us your application's flow and pressure requirements and we will confirm the correct size 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 GFR series as performance curves rather than a single rated figure, so we do not quote a number here. Tell us your application's flow and pressure requirements and we will confirm the sizing against the datasheet on request.
This unit's automatic drain expels collected condensate on its own, which suits installations that run unattended or are awkward to reach. If you prefer controlled, on-demand blowdown, choose the manual drain version; the differential-pressure drain is the catalogue default. Drain choice does not change the 0.15-0.9 MPa (20-130 psi) regulation range of this configuration.
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.