The AirTAC GFR30015ALC3WT 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 GFR30015ALC3WT is an AirTAC GFR filter regulator: water and particulate filtration plus pressure regulation in a single body. This configuration has a 1/2 in NPT port, a 5 um filter element (code W), an automatic drain that clears collected condensate without daily attention, and a round pressure gauge reading in bar. It is the low-pressure type, and a mounting bracket is included.
This is a genuine AirTAC part from the GFR300 series. GFR filter regulators are offered in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drains, 40 um standard or 5 um filtration, and square or round gauges scaled in MPa, psi or bar. Flow is published as curves rather than a single rating, so ask us to confirm datasheet figures for your application.
| Model | GFR30015ALC3WT 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, bar 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. 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. |
| 3 | Gauge scale: bar. 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. |
| (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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Spray booths and coating stations running atomising air below standard line pressure use this unit to clean the supply to 5 um, hold the set pressure, and let the automatic drain keep condensate out of the finish.
Carton sealers and wrapper cylinders on a packaging line take a steady 1/2 in air feed; this filter regulator removes water and particles, regulates the supply, and auto-drains the bowl so the line runs unattended.
Bench rigs that need clean, low-pressure air for instruments and small cylinders use the 5 um element and the round bar gauge to set and read pressure precisely, with the automatic drain handling accumulated water.
Pick the size by the port and flow step: 200 through 600, with ports from 1/8 in to 1 in - step up a size when your line needs more air. This unit already carries the finer 5 um element (W); the standard grade is 40 um if that level of filtration is not required. Drain options are automatic (fitted here), manual, or the differential-pressure default. Gauges are the embedded square type or an external round gauge, scaled in MPa, psi or bar; this unit has a round gauge in bar. Thread here is NPT; PT is the standard and G (BSPP) is also an order option. A bracket is included. Because flow is published as curves and not a single rated figure, 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. 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 series as curves rather than a single rated figure, so we do not quote one number. Tell us your application and required flow and we will confirm the sizing from the datasheet before you order.
This unit carries the automatic drain (code A), which ejects collected condensate without daily manual attention - useful on lines that run unattended. The same GFR300 series is also ordered with a manual drain (M) or the differential-pressure default (blank); just specify the code you need.
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.