The AirTAC GFR300C15ALJF2WK AirTAC Filter Regulator PT1/2 5 um 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 GFR300C15ALJF2WK is an AirTAC GFR300 filter regulator that removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration takes a 1/2 in PT1/2 port, carries the finer 5 um filter element, and uses an automatic drain that expels collected condensate without operator attention. The regulator is the low-pressure type, an embedded square gauge reading in psi is fitted, and a reverse/check valve is built in. The bowl is metal and no mounting bracket is included. It is rated for a maximum inlet pressure of 1.0 MPa (145 psi) and operates from -5 to 70 C on compressed air (non-freezing).
This is a genuine AirTAC part. The GFR family runs from size 200 to 600 with ports from 1/8 to 1 in, and is catalogued with drain, filter-grade, gauge, thread and bracket options, so a variant can be matched to most point-of-use filtration-and-regulation duties. Flow for the series is published as curves rather than a single rated figure, so ask us to confirm sizing and the datasheet for this exact model on request.
| Model | GFR300C15ALJF2WK AirTAC Filter Regulator PT1/2 5 um |
|---|---|
| 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) |
Feeding clean, regulated air to the cylinders and grippers on a packaging line's cartoner, where the 5 um element protects sealing and forming valves from water and fine dirt.
Supplying the ejectors and gripper actuators on an assembly-cell robot, with the low-pressure regulator holding a reduced, stable circuit pressure and the psi gauge giving operators a local readout.
Powering the diverters and stopper cylinders along a distribution-centre conveyor run, with the automatic drain keeping condensate out of the valves during long, unattended shifts.
Size steps from 200 to 600 as port size and air demand grow; this size 300 unit is drilled for a 1/2 in PT thread, with G (BSPP) and NPT available as order options. Drain type is a real choice: automatic (this model) suits unattended lines, manual suits periodic checks, and the differential-pressure default reacts to a set pressure drop. Filter grade is 40 um standard or 5 um for finer protection - the W in this code selects 5 um. Gauge scale can be MPa, psi or bar, and this unit reads psi on the embedded square gauge; an external round gauge is optional. Because flow is published as curves, not a single rating, send us your line pressure and air demand 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 GFR series as curves rather than a single rated figure, so we do not quote a number here. Tell us your working pressure and air demand and we will confirm the sizing from the datasheet on request.
The A in the code sets the automatic drain, which expels collected condensate without operator attention - useful on lines that run unattended. The GFR series is also catalogued with manual or differential-pressure drains, and the drain type is part of the model code, so it is chosen when you order.
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.