The AirTAC GFR30010ALC2WGK AirTAC Filter Regulator G3/8 Low-Pressure 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 PT3/8" 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 GFR30010ALC2WGK is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in a single body. It removes water and particulate down to 5 um (the fine W grade, versus the standard 40 um), regulates downstream pressure as a low-pressure type, and bleeds condensate by itself through the automatic drain, so no manual draining routine is needed. The round pressure gauge fitted here reads in psi, the reverse/check valve holds the downstream setting if upstream pressure is lost, and the mounting bracket is included. The polycarbonate bowl suits this 300 size, with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating range of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options across drain type (differential-pressure, automatic or manual), filter grade (40 um standard or 5 um), gauge style and scale, thread (PT standard; G and NPT orderable) and low-pressure or standard regulator types. Flow for this model is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application.
| Model | GFR30010ALC2WGK AirTAC Filter Regulator G3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 10 | Port size PT3/8". 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). |
| 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. |
| G | G (BSPP) thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeds and regulates air to pneumatic clamp cylinders that must hold at a gentle, low setting, with the 5 um element keeping fine debris out of the clamp valves and the check valve holding the clamp setting if supply pressure drops.
Conditions the air feeding sensitive benchtop instruments and sample-handling actuators, where the 5 um filtration protects precision components and the automatic drain keeps the bowl clear without operator attention.
Sits at the drop to a filling or bottling conveyor section, filtering and regulating the air that drives diverter and stopper cylinders, with the included bracket mounting the unit at the line frame.
Start with the port step: this unit is size 300 with a 3/8 inch port (G thread here; PT is the standard thread and G or NPT are orderable options), so match it to your line size and required flow - larger sizes carry more flow. Because it is the L (low-pressure) type, it belongs in circuits that work below standard regulator settings; the exact adjustment range for this variant is not published, so confirm it with us before ordering. The 5 um W element is the right pick where downstream equipment is sensitive to fine particulate; choose 40 um for general supply. The automatic drain suits unmanned or hard-to-reach installations; manual and differential-pressure drains are available in the family. Gauge scale (MPa, psi or bar - psi fitted here), bracket and reverse/check valve round out the choices. Flow is published as curves, not a single rating, so let us confirm sizing against your application before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow 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 one number. Send us your line pressure and the flow your application needs, and we will confirm the datasheet curve figures and check the sizing for you before you order.
The L in the code marks this as the low-pressure regulator variant of the GFR300, intended for circuits that operate below standard regulator settings. The exact adjustment range for this variant is not published in the material we hold, so please confirm the range with us against your working pressure before ordering.
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.