The AirTAC GFR300C15ALJF2WGK AirTAC Low-Pressure Filter Regulator G1/2 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 See datasheet 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 AirTAC GFR series combines a filter and a pressure regulator in a single body: compressed air is cleaned of water and particulate, then regulated downstream. This GFR300C15ALJF2WGK is the size 300 unit with a G1/2 (BSPP parallel) port, G thread, a 5 um element (code W), an automatic drain, and the low-pressure regulator type. It is fitted with the embedded square gauge scaled in psi and a reverse/check valve, and comes without a mounting bracket (code J). Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and the bowl on this unit is metal.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options across the range include 40 um or 5 um filtration, differential-pressure, automatic or manual drains, standard or low-pressure regulation, square or external round gauges scaled in MPa, psi or bar, PT, G (BSPP) or NPT threads, and a mounting bracket. Flow for these units is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C15ALJF2WGK AirTAC Low-Pressure Filter Regulator G1/2 |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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 — factory standard, Factory standard 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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. |
|---|---|
| C1 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Clean, regulated air to clamp fixtures on a CNC milling cell: the 5 um element protects the clamp cylinders from particulate and condensed water while the low-pressure regulator holds the clamp circuit at its set pressure, and the psi gauge lets setters verify it at a glance.
Feeding carton-sealing and pick-and-place actuators at a drop point on a packaging line: filtered, regulated air with the automatic drain clearing condensate during shifts so the line does not stop for manual bowl draining.
Air to guide-rail adjusters and sorting cylinders along a bottling conveyor: the fitted check valve holds the downstream circuit if supply pressure dips, while the 5 um element keeps the small control valves on the line clean.
Size and port set the flow path: this unit is size 300 with a 1/2 inch port; step up to size 400 or 600, or down to 200, as your circuit's demand requires - send us your consumption and we will check it against the published flow curves. Drain choice matters: the automatic drain here vents collected condensate without operator attention, while manual and differential-pressure drains are available on other codes. Filtration is the 5 um element (code W); the 40 um element is the standard grade if your actuators tolerate coarser air. The regulator on this code is the low-pressure type; its exact adjustment range is not published, so confirm it with us before ordering. Gauges can be the embedded square type (as fitted here, psi scale) or an external round gauge scaled in MPa, psi or bar. Thread is G (BSPP) on this code; PT is the standard and NPT is an order option. A mounting bracket is available on other codes but is omitted on this one (code J).
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 series as curves, not as a single rated figure, so we do not quote a number here. Send us your circuit's consumption and operating pressure and we will confirm the datasheet curve for GFR300C15ALJF2WGK against your application before you order.
This code carries the 5 um element (code W) for finer particulate removal ahead of sensitive valves and cylinders. The 40 um element is the standard grade and suits general actuator supply; both grades are available across the GFR range, so specify which you need when ordering. Note also that this is the low-pressure regulator type - its exact adjustment range is not published and is confirmed on request.
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.