The AirTAC GFR300C15AC2WTK 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 GFR300C15AC2WTK is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit is configured with a 1/2 in NPT port, a 5 um filter element (code W), an automatic drain that expels collected condensate without manual attention, a round external gauge reading in psi, and a built-in reverse/check valve that holds the downstream setting if upstream supply is interrupted. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -5 to 70 C (non-freezing). At size 300 the polycarbonate bowl gives a clear view of condensate level, and the mounting bracket is included.
This is a genuine AirTAC part from the GFR range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, manual, automatic or differential-pressure drains, 40 um or 5 um elements, and gauge choices in MPa, psi or bar scales. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR300C15AC2WTK 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 clean, regulated air to the cylinders and grippers on a carton-forming or wrapping line, where the 5 um element protects valves from fine particles and the automatic drain keeps condensate off the machine frame without operator rounds.
Serving the air jets and diverters on a bottling or material-handling conveyor, where the check valve holds the set pressure if the plant air supply dips and the psi gauge lets line staff verify settings at a glance.
Conditioning shop air for a test rig or laboratory fixture that needs steady, filtered pressure at a repeatable setpoint, with the 5 um grade and fine regulation range suiting instruments and pneumatic controls downstream.
Choose the size and port step against the air demand of the circuit: this unit is size 300 with a 1/2 in port, one step up from the 1/4 in and 3/8 in sizes and one step below size 400. Because flow for the G-series is published as curves and not as a single rated number, ask us to confirm sizing against your application before ordering. On this configuration the 5 um element (W) is already selected instead of the 40 um standard - choose 40 um where only coarse water and particle removal is needed, and 5 um where downstream equipment is more sensitive. The automatic drain suits points that are hard to reach or run unattended; manual and differential-pressure drains are available on other variants. The round psi gauge is fitted here; the embedded square gauge is standard and MPa or bar scales can be ordered. NPT thread is specified on this code, with PT (standard) and G (BSPP) available as order options, and the mounting bracket is included.
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 one number here. Tell us your operating pressure and air demand and we will confirm the flow and full datasheet figures for this exact model on request before you order.
Both are read from the code: A is the automatic drain, which ejects collected condensate on its own instead of relying on a manual or differential-pressure drain, and W is the 5 um filter element, one grade finer than the 40 um standard. The 40 um element and the other drain types can be ordered on equivalent GFR300 variants if your application does not need them.
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.