The AirTAC GFR30008ALJC2W AirTAC Filter Regulator, PT1/4, 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 PT1/4" 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 GFR30008ALJC2W is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate down to 5 um (the W fine-grade element, versus the 40 um standard) and regulates downstream pressure in the low-pressure type configuration. The 08 port code gives a 1/4 in PT connection, the A drain code gives an automatic drain that expels collected condensate without manual attention, and the C2 gauge code means an external round gauge with a psi scale is fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The bowl on this 300 size is polycarbonate (PC).
This is a genuine AirTAC part. The GFR family is published in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um filtration, gauge styles and 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 before ordering.
| Model | GFR30008ALJC2W AirTAC Filter Regulator, PT1/4, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (PT 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, 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. |
|---|---|
| 08 | Port size PT1/4". 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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 · PT1/4" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Point-of-use conditioning for the pneumatic valve island on a carton-forming packaging line: the 5 um element protects directional valves from particulate and the automatic drain handles condensate on a line that runs unattended between shifts.
Air preparation for the stopper and pusher cylinders along a bottling conveyor, where the low-pressure type regulator holds a reduced downstream setting for gentle actuation and the psi gauge gives operators a local reading.
Clean, regulated supply to the pneumatic grippers and reference gauges on a laboratory test rig, where the 5 um grade and a fine-regulated low-pressure setting protect sensitive instrumentation downstream.
Choose the size and port step against the air consumption of the machine downstream: 200, 300, 400 and 600 step up in both port size and capacity, and this unit sits at 300 with a 1/4 in PT port. This configuration carries the 5 um W element - select it where actuators, valves or instruments need finer protection than the 40 um standard element; the automatic drain suits points that are not attended daily, while manual and differential-pressure drains remain available in the family. The fitted round gauge reads in psi; square embedded gauges and MPa or bar scales are the other catalogue choices. PT is the standard thread on this unit, with G (BSPP) and NPT available as order options. A mounting bracket is optional in the family; this code is supplied without one.
One honest routing note: AirTAC publishes flow for this family as curves, not as a single rated number, and the exact setpoint range of the low-pressure type is not stated on the sheet we transcribe. Send us your line pressure, required downstream pressure and air consumption, and we will confirm the sizing and the datasheet figures 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 curves, not as a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Tell us your line pressure, required downstream pressure and air consumption, and we will confirm the sizing against the datasheet curves on request before you order.
Both are decoded from the model code. The A position is the automatic drain, which discharges collected condensate by itself instead of waiting for a manual bleed - useful on equipment that runs unattended. The W position is the 5 um fine filtration grade, one step finer than the 40 um standard element; choose 40 um where coarse protection is enough.
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.