The AirTAC GFR30015ALC2WTK 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 automatic 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 GFR30015ALC2WTK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration has a 1/2 in NPT port, a 5 um filter element, an automatic drain and a low-pressure regulator, and it comes fitted with a round psi pressure gauge, a reverse/check valve and a mounting bracket. The polycarbonate bowl shows accumulated condensate at a glance, and the automatic drain discharges it without anyone having to bleed the bowl by hand. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) elements, embedded square or external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. AirTAC publishes flow for this series only as curves rather than a single rated figure, so we confirm datasheet and sizing figures on request.
| Model | GFR30015ALC2WTK 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 | Low-pressure 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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) |
Swing clamps and power vises on a machining centre need air that is both clean and held at a steady setting so parts stay clamped identically cycle after cycle. This unit filters the shop air down to 5 um, regulates it in one body, and its automatic drain clears condensate between shifts without an operator opening anything.
A plasma torch is fed straight from the shop air line, and water or particles in that line show up as ragged cuts and short consumable life. Feeding the torch circuit through this filter regulator gives the job a 5 um element, a set-and-hold pressure and a round psi gauge the operator can read at the machine.
Sealing jaws, pushers and pick-and-place cylinders on a packaging line run thousands of strokes a day and are sensitive to pressure drift and dirty air. This low-pressure type filter regulator lets the line set a reduced working pressure at the machine, while the automatic drain keeps free water out of the valves during unattended runs.
Size and port set the air capacity: this unit is size 300 with a 1/2 in NPT port - step up to size 400 or 600 when the circuit needs more air, or down to 200 for compact lines. Drain type is a real choice: automatic (fitted here) suits unattended duty, manual suits installations where someone bleeds the bowl on a schedule, and the differential-pressure drain is the catalogue default that discharges only as the element loads up. The filter grade is 5 um on this unit (code W) against the 40 um standard - choose 5 um where downstream valves, cylinders or instruments need finer air. The gauge fitted here is the external round type reading in psi; the embedded square gauge with MPa or bar scales is the alternative. Thread is NPT on this unit; PT is the AirTAC standard and G (BSPP) is an order option. A mounting bracket is included. 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. The reflux valve permits reverse flow 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 and the air demand of the equipment you are feeding, and we will confirm the sizing and the datasheet figures on request.
The automatic drain on this unit discharges condensate collected in the polycarbonate bowl by itself, which suits duty that runs unattended or across shift changes. A manual drain (code M) is the choice where someone is on site to bleed the bowl regularly, and the differential-pressure drain is the catalogue default that only discharges as the element loads. All drain types work within this unit's -5 to 70 C non-freezing temperature range.
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.