The AirTAC GFR300C15ALC1WT 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 AirTAC GFR300C15ALC1WT is a GFR-series filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at a set point. This 300-size unit is ordered with a 1/2 in NPT port, a 5 um filter element (the W grade, finer than the standard 40 um), an automatic drain that bleeds collected condensate without manual attention, and a round pressure gauge reading in MPa. The regulator is the low-pressure type, selected for circuits that work below the standard regulator range; the exact adjustment range for this type is not published, so confirm it with us. A mounting bracket is included and no reverse/check valve is fitted. 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 line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), 40 um or 5 um filtration, square or round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR300C15ALC1WT 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) |
Filtered, regulated air feeding the clamp cylinders on a low-pressure pneumatic press station, where the 5 um element shields the clamp valve seats and the round MPa gauge gives the setter a direct pressure readout.
Conditioning the air supply to the gripper and actuator manifold on a bottling line, with the automatic drain clearing condensate between shifts so the unit can run unattended in a wet compressor room.
Supplying the divert and pusher cylinders that sort cartons on a packaging conveyor, where the low-pressure regulator type matches the gentle set point the diverter cylinders need.
Choose the size step (200/300/400/600) and port against the air demand of the circuit; this 300 unit carries a 1/2 in NPT port. Drain: automatic suits points that are not checked daily, while manual and differential-pressure drains are the alternative order codes. Filtration: the 5 um element (this unit) protects precision components downstream; 40 um is the standard grade. Gauges: the embedded square gauge is standard and an external round gauge is optional, in MPa, psi or bar scales; this unit carries a round MPa gauge. Threads: PT is the standard and G and NPT are catalogue options - this unit is NPT. The low-pressure regulator type is chosen where the circuit operates below the standard range; its exact adjustment range is not published, so confirm it with us. Flow is published as curves, not a single rating - ask us to confirm sizing against the datasheet before ordering.
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.
Flow for the GFR300 is published as curves in the AirTAC datasheet, not as a single rated number, so we do not quote a figure here. Send us your application's air demand and we will confirm sizing against the datasheet curves on request.
This unit is ordered with an automatic drain, which expels collected condensate from the bowl without manual intervention - useful where the unit is mounted in an awkward spot or the line runs unattended. Manual and differential-pressure drains are available as alternative order codes in the same series.
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.