The AirTAC Airtac GFR Filter Regulators GFR30015LF1WG 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 differential-pressure 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 GFR300-15G is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in one compact body. This unit takes a 1/2 in port with G (BSPP) thread, fits a 5 um filter element (the finer of the two published grades) for cleaner downstream air, and uses a low-pressure regulator type for applications that run at reduced working pressure. The differential-pressure drain bleeds collected condensate from the PC (polycarbonate) bowl automatically whenever the pressure difference across the element calls for it, and the embedded square gauge reads outlet pressure in MPa. A mounting bracket is included.
This is a genuine AirTAC part from the GFR300 size within the GFR range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in. Across the range you can order manual or automatic drain instead of the differential-pressure drain, the standard 40 um element instead of 5 um, an external round gauge, and PT or NPT thread. Flow figures are published as curves rather than a single rating, so ask us and we will confirm the datasheet numbers for your application on request.
| Model | Airtac GFR Filter Regulators GFR30015LF1WG |
|---|---|
| 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, 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". |
| (blank) | Drain: Differential-pressure 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. |
| 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. |
| G | G (BSPP) 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 a clamping or holding circuit on a production machine that runs its actuators at reduced pressure, with the 5 um element keeping wear particles out of the valve stack and cylinders.
Conditions the air feeding cylinders and air jets on a carton or bag packaging line, filtering condensate and fine dirt while the regulator holds a steady, gentle working pressure.
Supplies filtered, regulated air to bench-top test rigs and pilot-scale process equipment where the 5 um grade protects sensitive instrumentation from particulate carryover.
Step up or down through the GFR sizes (200/300/400/600) to match the port and flow path your line needs; this GFR300 carries a 1/2 in port. Choose the drain to suit maintenance: differential-pressure (fitted here) drains itself in service, automatic drains on a schedule of its own, and manual drain puts a controlled bleed in the fitter's hands. This unit carries the 5 um element (code W); the 40 um standard element suits general protection where finer filtration is not required. The embedded square gauge reads in MPa; external round gauges and psi or bar scales are order options. PT is the standard thread and G or NPT are catalogue options to order - this unit is specified with G thread. A mounting bracket is included.
Because flow is published as curves rather than a single 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.
AirTAC publishes flow for the GFR300 series as curves, not as a single rated figure, so we do not quote a number here. Tell us your line pressure and the flow your application needs and we will confirm the sizing against the datasheet on request before you order.
The 5 um element (code W) is the finer of the two published filter grades - the standard element is 40 um - so it suits circuits that need cleaner air. The low-pressure regulator type (code L) is the variant intended for applications running at reduced working pressure; the exact regulation range for this type is not published in our sheet, so ask us to confirm it on request.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.