The AirTAC GFR30015ALF2 AirTAC Filter Regulator PT1/2 Low-Pressure is a genuine G-series filter regulator: water separation, 40 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 GFR30015ALF2 is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure at a set point in a single body. This configuration is built on the 300 size with PT1/2 (1/2 in) ports in PT thread as standard, a 40 um filter element, an automatic drain that discharges collected condensate without daily attention, and the low-pressure regulator type. A square pressure gauge scaled in psi is fitted, and the mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, and options across the family include manual or differential-pressure drains, a 5 um element (code W), gauge scales in MPa or bar, G (BSPP) or NPT threads, and a reverse/check valve. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application.
| Model | GFR30015ALF2 AirTAC Filter Regulator PT1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 40 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 | 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding filtered, regulated air to carton-sealing and wrapping machines on a packaging line, where the automatic drain keeps condensate out of valves and cylinders between shift checks and the 1/2 in PT ports suit the machine's main air drop.
Supplying clamping and hold-down cylinders on an assembly fixture, where the low-pressure regulator type sets a moderate working pressure and the fitted psi gauge lets operators verify the set point at a glance.
Preparing air for diverters, stoppers and gate cylinders along a conveyor line, where the 40 um element protects directional valves from water and particulate and the included bracket simplifies mounting beside the line.
Choose the size by port and demand: this 300-size unit carries PT1/2 (1/2 in) ports, and larger sizes in the family handle larger port connections and more flow - step up or down to match your line. The automatic drain on this unit suits installations that are not checked every day; manual and differential-pressure drains are the alternatives. The 40 um element is standard, and a 5 um element (code W) is available where finer filtration is needed. The fitted square gauge reads in psi, with MPa or bar scales and an external round gauge as options. PT thread is standard here, with G (BSPP) and NPT available to order, and the mounting bracket is included. Because flow is published as curves rather than one rated figure, 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
Flow for the GFR300 series is published as curves, not as a single rated figure, so we do not quote a number here. Send us your application - port size, downstream demand and set pressure - and we will confirm the flow and the full datasheet figures on request.
This unit carries code A for an automatic drain, which discharges collected condensate on its own and suits installations that are not checked daily. Manual and differential-pressure drain variants exist in the GFR family, so ask us for the right code if you prefer one of those.
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.