The AirTAC GFR300C15AJC2WTK 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 GFR300C15AJC2WTK is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has 1/2 in NPT ports, a 5 um filter element (code W), an automatic drain that expels collected condensate without manual attention, and a round pressure gauge reading in psi. A reverse/check valve is fitted to hold downstream pressure if the supply drops, and the unit is supplied without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator covers 0.15-0.9 MPa (20-130 psi) with this drain type, and the operating temperature range is -5 to 70 C (non-freezing). The bowl on this size is polycarbonate.
This is a genuine AirTAC part from the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of PT, G or NPT thread, differential-pressure, automatic or manual drains, 40 um or 5 um filtration, and gauge options. AirTAC publishes flow for this series as curves rather than a single rated figure, so contact us and we will confirm the datasheet figures for your application before you order.
| Model | GFR300C15AJC2WTK 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) |
Point-of-use conditioning for a machining centre's pneumatic circuit: the 5 um element protects air bearings, chucks and tool-change cylinders from water and fine particulate, while the regulator holds a steady set pressure and the check valve holds it during supply dips.
Feeding pusher and stopper cylinders on a bottling or packaging conveyor, where condensate carry-over from the ring main would otherwise stick valves. The automatic drain keeps the bowl empty without an operator round, and the psi gauge lets line staff verify set pressure at a glance.
Regulating and conditioning air to weld-gun clamps and fixture cylinders in a robotic cell, where clamp force depends on stable pressure. The 5 um grade suits the cell's sensitive valve islands, and the round psi gauge is read during pressure set-up and routine checks.
Size 300 with 1/2 in NPT ports suits lines where the main air supply feeds a distribution point or a sizeable machine circuit. Step up to size 400 or 600 for higher demand, or down to 200 for compact drops - the port step tracks the flow curve, so let us check the curve against your required flow before you commit. This unit already carries the 5 um element (W), the automatic drain, the round psi gauge and the reverse/check valve; if you would rather have the 40 um standard element, a manual or differential-pressure drain, a square gauge or MPa/bar scale, or no check valve, those are separate order codes in the same family.
Thread is NPT here; PT is the catalogue standard and G (BSPP) is also available to order. A mounting bracket can be added on other variants - this code ships without one. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application 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.
AirTAC publishes flow for the GFR series as curves rather than a single rated figure, so there is no one l/min or SCFM number we can honestly quote. Send us your inlet pressure, set pressure and required flow, and we will confirm the figures from the datasheet curve for this exact model before you order.
The automatic drain (code A) expels collected condensate from the bowl on its own, without anyone opening a valve - useful on lines that run unattended or in hard-to-reach spots. The same GFR300 family is also available with a manual drain or the differential-pressure default drain, and the regulation range differs by drain type: 0.15-0.9 MPa (20-130 psi) for automatic and differential-pressure drains, 0.05-0.9 MPa (7-130 psi) for manual. Those variants carry their own order codes.
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.