The AirTAC GFR300C15AF1WTK 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 GFR300C15AF1WTK is a GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation combined in one body. This 300-size unit is threaded 1/2 in NPT, carries the fine 5 um filter element (code W), drains condensate automatically (code A), and is fitted with the embedded square pressure gauge reading in MPa. A reverse/check valve (code K) is fitted, and the standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi). Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The polycarbonate bowl is standard at this size.
This is a genuine AirTAC part. The GFR family is published in 200, 300, 400 and 600 sizes with port options from 1/8 to 1 in, PT as the standard thread and G or NPT as catalogue options, plus a choice of drain type, filter grade, gauge style and scale. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request.
| Model | GFR300C15AF1WTK 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 cleaned, regulated air to the wrapper and cartoner valves on a packaging line, with the 5 um element protecting downstream components and the automatic drain clearing condensate without operator attention.
Regulating supply pressure to the stopper, pusher and lift cylinders along a conveyor run, with the check valve holding the set downstream pressure if the upstream supply dips.
Conditioning air for the pilot valves and air-operated sensors on a machine control panel, with the MPa-scale square gauge giving the operator a direct reading of the set pressure at the panel.
Choose the size and port step against the air demand of the circuit: this unit is 300 size with a 1/2 in NPT port; larger sizes carry larger ports and more flow. Because published flow appears only as curves, ask us to confirm sizing against your application before ordering. The decodable choices on this configuration are already fixed: 5 um filtration instead of the 40 um standard element, automatic drain instead of manual or differential-pressure, an embedded square gauge with MPa scale, and a fitted reverse/check valve. Thread is NPT here; PT is the standard and G (BSPP) is the alternative catalogue option. If you need a different combination of drain, grade, gauge scale or thread, we can identify the matching catalogue code.
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, not as a single rated figure, so we do not quote a rated flow number. Tell us your application and we will confirm the flow and sizing figures from the datasheet on request before you order.
The W in the code selects the optional 5 um filter element instead of the 40 um standard, giving finer particulate removal, and the A selects the automatic drain, which expels collected condensate without manual intervention. Both are catalogue options on the GFR family, and the 40 um / manual-drain or differential-pressure combinations are available as alternative 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.