The AirTAC GFR300C10ALC2GK AirTAC Filter Regulator G3/8 Low-Pressure 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 GFR300C10ALC2GK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit is configured with a G3/8 (BSPP) port, a 40 um filter element, an automatic drain that ejects collected condensate without manual attention, and a low-pressure regulator type for circuits that run below standard line pressures. It is fitted with an external round gauge scaled in psi, a reverse/check valve, and includes a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The bowl on this unit is metal.
This is a genuine AirTAC part. The GFR series is published in sizes 200, 300, 400 and 600 with a choice of port sizes, PT/G/NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um (W) filter grades, standard or low-pressure regulator types, embedded square or external round gauges in MPa/psi/bar scales, and an optional reverse/check valve. Flow is published as curves rather than a single rated figure, so we confirm datasheet and flow figures for your application on request.
| Model | GFR300C10ALC2GK AirTAC Filter Regulator G3/8 Low-Pressure |
|---|---|
| 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 fixture drop, the GFR300C10ALC2GK cleans water and swarf-laden air out of the clamp circuit and holds the regulator setpoint for the clamping cylinders, with the psi gauge giving the operator a direct local read.
On the low-pressure supply leg feeding sealing bars and hold-down actuator valves, this unit filters condensate and particulate, regulates the reduced pressure, and its automatic drain keeps condensate off the valve seats between shifts.
Feeding the pick-and-place grippers and divertor cylinders along a sortation conveyor, the check valve holds the downstream circuit against supply dips while the 40 um element protects the directional valves from particulate.
Size 300 with a G3/8 port sits in the middle of the GFR range; step up to size 400/600 or down to 200 depending on the pipe bore and the flow your line needs. Because the drain here is automatic, the unit suits positions that are not checked daily; choose manual drain if you prefer controlled, operator-timed blowdown, or the differential-pressure default for drain-on-pressure-drop behaviour. The 40 um element is the standard grade; specify the W code for 5 um if finer filtration is required. The fitted round gauge reads in psi; square embedded gauges and MPa/bar scales are alternatives. Thread is G (BSPP) here, with PT as the standard and NPT available to order, and the bracket is included.
Note that this is the low-pressure regulator type; its exact adjustment range is not published in the material we hold, so ask us to confirm it against your set pressure before ordering. Flow is published as curves, not a single rating, so send us your application details and we will confirm sizing from the datasheet.
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 we do not quote a number here. Tell us your line pressure, set pressure and the air demand of the equipment downstream, and we will confirm the flow and the full datasheet figures for this exact model on request.
The A in the code specifies an automatic drain: collected condensate is ejected from the metal bowl without anyone opening it, which suits units mounted in awkward or infrequently visited positions. The L code marks the low-pressure regulator type, intended for circuits regulated below standard line pressures; its exact adjustment range is not published in our current material, so ask us to confirm it against your set pressure before ordering.
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.