The AirTAC GFR30015F2WTK AirTAC Filter Regulator NPT1/2 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" 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 GFR30015F2WTK is an AirTAC GFR300 filter regulator: a single body that removes water and particulate from compressed air and then regulates downstream pressure. This configuration is a 1/2 in NPT ported size 300 unit with a 5 um filter element (the finer of the two catalogue grades), a differential-pressure drain that bleeds collected condensate as flow differential builds, an embedded square pressure gauge reading in psi, and a reverse/check valve fitted to hold downstream pressure when the supply is interrupted. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator adjustment range with differential-pressure drain is 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits this size; only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR range spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and options include 40 um or 5 um filtration, differential-pressure, automatic or manual drains, square or external round gauges with MPa, psi or bar scales, a low-pressure regulator type, a reverse/check valve, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR30015F2WTK AirTAC Filter Regulator NPT1/2 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 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 — square, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 15 | Port size PT1/2". 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeds clean, pressure-controlled air to the tool-clamp and pallet-change circuits of a machining centre, with the 5 um element protecting the clamping valves and the check valve holding clamp pressure through supply dips.
Supplies filtered and regulated air to the stopper, pusher and lift cylinders along a bottling conveyor, where the differential-pressure drain keeps condensate out of the actuators during continuous running.
Conditions the air feeding the suction blow-down and fold cylinders of a carton-erecting machine, with the psi gauge letting operators verify set pressure at the machine and the 5 um grade guarding the vacuum generator.
Size 300 with a 1/2 in NPT port sits in the middle of the GFR range; step up to size 400 or 600 or down to 200 depending on the flow your line needs, and match the port thread to your piping. This unit carries the 5 um (W) element - choose it where downstream valves, cylinders or instruments need finer filtration than the 40 um standard grade. Drain choice matters: differential-pressure (as fitted here) drains with flow, automatic drains unattended, and manual drain suits intermittently run lines; note the manual-drain variant widens the regulation range down to 0.05 MPa. The square psi gauge is fitted as specified, with MPa or bar scales and an external round gauge available as alternatives, and the reverse/check valve (K) is worth specifying wherever a dropped supply must not dump downstream pressure. Flow is published as curves, not a single rating, so send us your application details and we will confirm sizing against the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR flow as curves rather than a single rated figure, so there is no one rated flow number we can quote. Tell us your line pressure and the flow your equipment needs, and we will confirm the sizing from the datasheet curves on request before you order.
The W in the code specifies the 5 um filter grade instead of the 40 um standard element, for finer protection of downstream valves and actuators. The K specifies a reverse/check valve, which holds downstream pressure if the air supply is interrupted. Both are catalogue options you can order with or without on other GFR300 configurations.
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.