The AirTAC GFR300C15ALF1TK AirTAC Filter Regulator NPT1/2 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 GFR300C15ALF1TK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is built around 1/2 in NPT ports (PT is the AirTAC standard thread; G and NPT are order options), with an automatic drain on the bowl, the standard 40 um filter element, the low-pressure regulator type, an embedded square gauge reading in MPa, a reverse (check) valve fitted, and a mounting bracket included. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family runs from size 200 to size 600, covering ports from 1/8 in to 1 in, and each unit can be ordered with a different drain type, filter grade, gauge style and scale, thread and bracket arrangement. Flow is published as curves rather than a single rated figure, and the setting range of the low-pressure regulator type is not listed in the standard table, so we confirm both from the AirTAC datasheet on request.
| Model | GFR300C15ALF1TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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) |
Conditioning and regulating supply air to clamping fixtures that hold workpieces at a low, steady setting. The low-pressure regulator type and the MPa square gauge suit circuits that operate well below standard shop pressure, while the automatic drain clears condensate between cycles.
Filtering and regulating air feeding cylinders and grippers along a packaging line. The 40 um element removes water and particulate ahead of the actuators, the automatic drain handles condensate during runs without an operator opening the bowl, and the check valve sits in the supply path.
Supplying filtered, regulated pilot air to solenoid valves on a process skid or valve manifold. The 1/2 in NPT ports suit a main pilot-air header, the MPa gauge gives a local setting reference, and the mounting bracket allows panel mounting next to the valve bank.
Start with size and port: GFR comes in sizes 200, 300, 400 and 600, stepping up in port and flow capacity, so match the size step to the air demand of the circuit rather than oversizing on guesswork. Then choose the drain: differential-pressure (the default), automatic (code A, as fitted here) or manual. Filter grade is 40 um as standard, with a 5 um element available as code W when downstream equipment needs finer filtration. Gauges are the embedded square type as standard with an optional external round gauge, in MPa, psi or bar scales. Thread is PT as the AirTAC standard, with G (BSPP) and NPT as order options, and a bracket can be included or omitted (code J). Note that this unit is the low-pressure regulator type; its exact setting range is not published in the standard table, so ask us to confirm it. Because AirTAC publishes flow only as curves, not a single rating, send us your flow and pressure requirements 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 G-series flow as curves rather than a single rated figure, so we do not quote a flow number for this unit. Tell us your required flow and working pressure and we will confirm sizing against the datasheet curves on request before you order.
The bowl on GFR filter regulators can be ordered with a differential-pressure drain (the default), an automatic drain (code A, fitted on this model) or a manual drain (code M). This unit uses the automatic drain, so collected condensate is discharged without an operator having to open the bowl; the manual option is chosen where an operator prefers to drain by hand as part of a routine.
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.