The AirTAC GFR300C15AJF3WT 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 GFR series combines water and particulate filtration with pressure regulation in a single body, so one component both cleans the compressed air and holds your downstream pressure where you set it. This GFR300C15AJF3WT is the size 300 unit with a 1/2 in NPT port, ordered with the 5 um filter element (W), an automatic drain (A) that expels collected condensate without daily attention, and the embedded square pressure gauge reading in bar. The standard regulator covers 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the polycarbonate bowl suits non-freezing installations from -5 to 70 C. This configuration is supplied without a mounting bracket and without a reverse-flow check valve.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and each size can be ordered with manual, automatic or differential-pressure draining, a 40 um or 5 um element, square gauges in MPa, psi or bar scales (an external round gauge is optional), PT, G or NPT threads, and with or without a bracket. GFR flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR300C15AJF3WT 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) |
Feeding filtered, regulated air to a machining center's tool-changer and clamping circuits: the 5 um element keeps scale and pipe debris out of directional valves, while the regulator holds a fixed setting for consistent clamping force.
Supplying cylinder-driven diverters, pushers and gripper arms on a bottling or packaging conveyor, where the automatic drain clears condensate at an unsupervised drop and the regulator keeps actuator pressure steady across the shift.
Regulating supply air to pneumatic torque tools and air cylinders along an automotive trim line; the 1/2 in NPT connection suits a main drop feeding several take-off points, with the square bar gauge giving operators a local pressure reference.
Choose the size by the port and flow step: sizes 200/300/400/600 map to 1/8-1 in ports, and this size 300 unit carries a 1/2 in NPT connection - step up or down a size if your line flow sits outside what a 1/2 in GFR comfortably serves. Drain choice is real: automatic (this unit, code A) suits drop points you cannot visit daily; manual (M) puts discharge in an operator's routine; differential-pressure (blank) is the default. Filter grade is 40 um standard or 5 um with the W code, as fitted here, for finer protection of valves and cylinders. Gauges are embedded square as standard with MPa, psi or bar scales (this unit: bar), and an external round gauge is optional. Threads come as PT (standard), G (BSPP) or NPT - the T in this code selects NPT. Brackets are optional; this configuration is supplied without one. Because flow is published as curves rather than a single rating, send us your flow and pressure conditions 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 GFR flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your line pressure, set pressure and expected air consumption, and we will confirm the sizing from the GFR300 datasheet on request before you order.
The A in this code fits the automatic drain, which discharges collected condensate from the bowl without an operator's daily routine. The same GFR300 body can be ordered with a manual drain (M) or the differential-pressure drain (blank), and with a 40 um element instead of the 5 um (W) fitted here.
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.