The AirTAC GFR300C15AF2WTK 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 GFR300C15AF2WTK is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds the downstream pressure at your setpoint. This configuration is built on a 1/2 in NPT port and carries a 5 um filter element, an automatic drain, an embedded square gauge reading in psi, a reverse/check valve and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the operating temperature range is -5 to 70 C (non-freezing), and with the automatic drain fitted the regulation range is 0.15-0.9 MPa (20-130 psi). The bowl on the 300 size is polycarbonate.
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 options that include manual or differential-pressure drains, the 40 um standard element, G (BSPP) or NPT threads in place of the PT standard, and an external round gauge. Flow for this series is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application.
| Model | GFR300C15AF2WTK 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 tool clamps and pneumatic actuators on a CNC machining centre, where the 5 um element protects directional valves and the regulator holds a steady setpoint at each machine drop.
Regulating filtered air to carton-forming and case-sealing cylinders on a packaging conveyor line, with the automatic drain handling condensate on a line that runs unattended.
Supplying regulated air to spray guns and air motors in a paint booth, where the 5 um grade helps keep water and particulate out of the finish and the check valve guards against backflow.
Size and port step up together across the GFR range - 200, 300, 400 and 600 - so choose the size whose published flow curve covers your demand at the working pressure; we can check the curve against your application before you order. This unit pairs the 5 um element (code W) with an automatic drain: pick automatic where the unit sits out of reach or the line runs unattended, manual where you want positive control, or the differential-pressure default. The embedded square gauge is fitted here reading in psi; MPa and bar scales and an external round gauge are order options. The thread on this model is NPT - the PT standard and G (BSPP) are the catalogue alternatives - and the bracket is included. The reverse/check valve (code K) is fitted to hold the downstream circuit against backflow.
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 GFR300 as curves rather than a single rated figure, so there is no one number we can quote honestly. Tell us your working pressure and demand and we will confirm the sizing from the datasheet before you order.
Code A fits the automatic drain, which ejects collected condensate without manual attention - useful on unattended lines. Manual and differential-pressure drains are catalogue alternatives on the GFR300, and the 40 um standard element can be ordered in place of the 5 um (W) element 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.