The AirTAC GFR30015ALC1WT 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 GFR30015ALC1WT is an AirTAC GFR300-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is built for 1/2 in NPT ports, carries a 5 um filter element (the finer of the two catalogue grades), and drains its PC bowl automatically, so collected condensate is expelled without an operator having to open the drain. It is the low-pressure type, and a round external gauge on an MPa scale is fitted so the set pressure is visible at the unit.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um elements, standard or low-pressure regulation, square or round gauges on MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR30015ALC1WT 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, MPa 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. |
| 1 | Gauge scale: MPa. 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) |
Feeds the sealing-jaw and clamp circuits of a packaging line, where filtered, moisture-free air at a steady, moderate set pressure keeps jaw timing consistent through a shift. The automatic drain handles condensate on a machine that runs unattended.
Sits at the air drop feeding spray guns and coating applicators, where the 5 um element strips water and particulate that would otherwise blemish the finish, and the low-pressure type regulator holds the gentle setting the gun expects.
Prepares air for the cylinders that divert, stop and gate product on a conveyor line. The visible MPa gauge lets a technician read the set pressure at a glance, and automatic draining keeps the bowl clear without scheduled walk-rounds.
Start with the port and size step: this unit is size 300 with 1/2 in NPT threads, one step up from 3/8 in and one below 3/4 in, so match it to the line size your flow actually needs. Drain choice matters in use: automatic drain (this unit) suits points that are hard to reach or run unattended, manual drain suits attended stations, and the differential-pressure default suits general duty. On filtration, 40 um is the standard element and 5 um (this unit, code W) is the finer option for downstream components that need cleaner air. Gauge scale (MPa, psi or bar) and thread family (PT standard, G or NPT to order) are decodable choices, and a mounting bracket can be ordered.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so we cannot quote you a rated flow figure. Send us your application details and we will confirm the curve data and correct size before you order.
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 family as performance curves, not as a single rated figure, so there is no rated flow number we can honestly quote for this unit. Tell us your line pressure and the air demand of the equipment you are feeding, and we will confirm the curve data from the datasheet and check that size 300 with the 1/2 in port is the right step before you order.
The A in the code sets the automatic drain: condensate collected in the polycarbonate bowl is expelled on its own, which suits units mounted in awkward spots or on equipment that runs without an operator nearby; manual and differential-pressure drains are the other catalogue choices. The W in the code sets the 5 um element instead of the 40 um standard, the finer of the two grades, for circuits feeding components that need cleaner air. This unit is also the low-pressure type, and its exact regulation range is not published in the catalogue material we hold, so ask us to confirm it against your set pressure.
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.