The AirTAC GFR30015ALF2WGK AirTAC Filter Regulator G1/2, 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 AirTAC GFR30015ALF2WGK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body, so you mount one unit instead of a separate filter and regulator. This 300-size configuration is built around a G1/2 (1/2 in) port with G (BSPP) thread, a 5 um filter element for finer filtration than the standard 40 um grade, and an automatic drain that expels collected condensate without manual attention. The regulator is the low-pressure type, and the unit carries an embedded square gauge scaled in psi, a reverse/check valve, and a mounting bracket.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um filtration, and gauge and thread options. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR30015ALF2WGK AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) 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 — 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. 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). |
| 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. |
| G | G (BSPP) 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) |
On a CNC machining cell where clamping fixtures run at reduced supply pressure, this unit filters the shop air to 5 um and holds the regulated low-pressure setting, with the automatic drain keeping condensate out of the fixture circuit.
Feeding the air cylinders on a carton-sealing or case-packing conveyor line, the GFR30015ALF2WGK cleans and regulates the supply at the line drop, and the reverse/check valve holds the downstream setting if upstream supply dips.
On looms and textile machinery that need clean, low-pressure air for jets and actuation, this filter regulator with its 5 um element and automatic drain protects the machine circuit from water and particulate carryover.
Start with the port step: this unit is 300 size with a G1/2 (1/2 in) port, and larger size numbers carry larger ports and higher flow capacity, so match the size to the air demand of the circuit. Choose the drain to suit access: automatic (as fitted here) suits unattended duty, manual suits periodic checks, and differential-pressure drain is the default. The 5 um element (code W) is the finer option versus the 40 um standard - pick 5 um where downstream equipment needs cleaner air. Gauge scale (MPa, psi or bar - this unit is psi), thread (PT is the standard; G and NPT are order options), and the bracket are all decodable choices.
Flow for this series is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering. The low-pressure regulator range for this configuration is not published on our sheet; we confirm it on request.
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 this series as curves rather than a single rated figure, so we do not quote a rated flow number. Send us your application's air demand and we will confirm the sizing and the datasheet flow figures on request before you order.
Both are decoded from the model code: the A gives an automatic drain, which expels collected condensate on its own instead of relying on the default differential-pressure drain or periodic manual draining, and the W gives the 5 um filter element instead of the 40 um standard grade. The unit also carries the L low-pressure regulator type, a square psi gauge, a reverse/check valve (K) and a mounting bracket.
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.