The AirTAC GFR300C15AJF2WT AirTAC Filter Regulator NPT1/2, 5 um 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 GFR300C15AJF2WT is a size-300 GFR filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This configuration is built with a 1/2 in NPT port, a 5 um filter element (the finer of the two catalogue grades), an automatic drain that expels collected condensate without manual attention, an embedded square gauge reading in psi, and no mounting bracket. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi) with this automatic-drain version, and the unit handles a maximum inlet pressure of 1.0 MPa (145 psi) at temperatures from -5 to 70 C (non-freezing). The polycarbonate bowl keeps the condensate and element status visible.
This is a genuine AirTAC part. The GFR line is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of 40 um standard or 5 um (W) filtration, differential-pressure, automatic or manual drains, embedded square or optional external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C15AJF2WT AirTAC Filter Regulator NPT1/2, 5 um |
|---|---|
| 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) |
Feeds clean, regulated air to the tool-change clamps and pneumatic actuators on a machining cell, with the 5 um element protecting tight-tolerance valves from fine particulate and the automatic drain handling condensate on a continuously running machine.
Sits at the drop point feeding air cylinders that divert, stop and stack packs on a conveyor line, holding a steady regulated pressure to the diverters while the automatic drain keeps moisture out of the valves during multi-shift running.
Prepares the air feeding nutrunners, air clamps and pick-and-place cylinders at an assembly station, combining filtration and regulation in one body to save panel space, with the psi gauge letting operators verify set pressure at a glance.
Work from the port step first: this unit is the size-300 body with a 1/2 in NPT port, one step up from 3/8 in and one below 3/4 in, so match it to your line size and the flow curve rather than to a single number. The 5 um (W) element suits points of use that see finer contamination than the 40 um standard grade; the automatic drain on this version suits installations that are not checked daily, while manual and differential-pressure drains remain available in the family. The embedded square gauge here reads in psi; round external gauges and MPa or bar scales are order options.
Thread is NPT on this code, with PT (the catalogue standard) and G available to order; the J code means no mounting bracket is fitted, so plan your panel or manifold fixing accordingly. Because flow is published only as curves, not a single rated figure, send us your application details 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 flow for this series as curves, not as a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Tell us your application and line conditions and we will confirm the relevant flow-curve and datasheet figures for this 1/2 in, size-300 unit on request before you order.
The A in the code specifies an automatic drain, which expels collected condensate from the bowl without anyone having to bleed it by hand - useful on lines that run unattended. The GFR family is also available with a manual drain or the differential-pressure default drain, so you can order the drain type that matches how often your installation is checked.
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.