The AirTAC GFR300C15ALC2T AirTAC Filter Regulator NPT1/2 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 GFR300C15ALC2T is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in one body, with a single bowl and one adjustment point. This 300-size unit is threaded NPT1/2 (1/2 in), carries the standard 40 um filter element, and drains condensate automatically, so the bowl empties itself as water collects. The regulator is the low-pressure type, and a round gauge scaled in psi is fitted so the downstream set point can be read directly. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, a 5 um element option (code W), square or round gauges scaled in MPa, psi or bar, and G/NPT thread options - this configuration includes the mounting bracket and has no reverse/check valve. Rated flow for the GFR300 is published as a curve rather than a single figure, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR300C15ALC2T AirTAC Filter Regulator NPT1/2 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) |
On a machining cell, this unit feeds clamps and swing cylinders that hold workpieces: the low-pressure regulator holds a reduced set point for delicate parts while the 40 um element and automatic drain keep water and pipe scale out of the valve stack.
For dampers, diverters and small process valves that are sized for modest air pressure, the GFR300C15ALC2T filters the supply and regulates it down in one body; the fitted psi gauge gives operators a direct read of the set point.
On a packaging line running cylinders, grippers and stop gates, this unit conditions the branch supply: condensate drains itself away automatically and the regulator holds the pressure the actuators were designed around.
Size the unit by port and flow: the 300 size steps up from the 200 with a larger 1/2 in port, so match it against the air demand of the circuit - we can check the published flow curve for you before you order. This unit drains automatically; manual and differential-pressure drains are the other catalogue choices if your duty differs. The 40 um element is standard and a 5 um version (code W) is available when finer filtration is needed. The fitted round gauge reads in psi; the embedded square gauge and MPa or bar scales are the alternatives. Thread is NPT here - PT is the standard thread and G (BSPP) is also a catalogue option. The low-pressure regulator type suits circuits running at reduced set points; its exact adjustment range is not published, so confirm it with us. A mounting bracket is included.
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 GFR300 flow as a curve, not a single rated figure, so we do not quote a number here. Send us your application's air demand and we will confirm from the datasheet whether the 300 size and its NPT1/2 port suit the job before you order.
This configuration drains condensate from the bowl automatically, which suits unmanned or hard-to-reach installations. Manual and differential-pressure drains are catalogue alternatives on the GFR300, and a 5 um element (code W) is available if the standard 40 um grade is too coarse for your circuit.
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.