The AirTAC GFR300C15ALC1WTK 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 puts filtration and pressure regulation in one body: compressed air is stripped of water and particulate, then held at the regulated setting downstream. This unit is the size 300 frame with a 1/2 in NPT port, rated to 1.0 MPa (145 psi) inlet and -5 to 70 C, non-freezing. It carries the W-coded 5 um element (finer than the 40 um standard), an automatic drain that expels condensate from the metal bowl without manual bleeding, and the low-pressure regulator type - the exact settable range for the L type is not published, so we confirm it on request. A round external gauge on an MPa scale is fitted, a reverse/check valve (K) is built in, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family runs from size 200 to 600 with ports from 1/8 to 1 in, and options across drain type (differential-pressure, automatic or manual), filter grade (40 um standard or 5 um), gauge style and scale (MPa, psi or bar), thread (PT standard, G and NPT to order) and reverse/check valve. Flow for the series is published as curves rather than a single rated figure, so share your application and we will confirm sizing and datasheet figures on request.
| Model | GFR300C15ALC1WTK 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 paint-shop spray guns and air motors on circuits that run at low pressure: the 5 um element strips water and fine particles that would spoil finish quality, while the low-pressure regulator holds the gun supply steady and the automatic drain clears condensate between batches.
Supplying clamp cylinders on a CNC fixture with clean, regulated air: filtration protects valve and cylinder seals from water and swarf-contaminated air, the regulator holds clamp force consistent part after part, and the built-in check valve backs the circuit if supply pressure dips.
Cylinders diverting, pushing and sealing cartons on a packaging conveyor need air that stays clean and at a stable setting through the shift: the 5 um element guards the downstream valves, and the automatic drain empties the metal bowl without an operator round.
The real choices on this family: step the size (200/300/400/600) to match port and flow; drain type - differential-pressure (default), automatic as fitted here, or manual; filter grade - 40 um standard or the 5 um W element on this unit; gauge style and scale (MPa, psi or bar); thread - PT is the standard, G and NPT are order options, and this unit is NPT; bracket, included here. The L code marks the low-pressure regulator type; ask us to confirm its settable range. Flow is published as curves, not a single rating, so 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 we do not quote a number here. Send us your line pressure, port size and downstream demand, and we will confirm the flow from the datasheet on request.
The W code fits the 5 um element instead of the 40 um standard, for finer removal of water and particulate ahead of sensitive equipment. The A code makes the drain automatic, so condensate collected in the metal bowl is expelled without manual bleeding; manual and differential-pressure drains are the other catalogue choices.
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.