The AirTAC GFR30010JC2GK AirTAC Filter Regulator G3/8, 40 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 PT3/8" 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 GFR30010JC2GK is a GFR300-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is a 300-size unit with a G3/8 (BSPP) port, a 40 um standard filter element, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough. It regulates between 0.15 and 0.9 MPa (20-130 psi), carries a maximum inlet pressure of 1.0 MPa (145 psi), and works in temperatures from -5 to 70 C (non-freezing). A round external gauge scaled in psi is fitted, a reverse/check valve is built in to hold the downstream setting if upstream pressure is lost, and the unit is supplied without a mounting bracket. The polycarbonate bowl gives a clear view of condensate level.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port options from 1/8 to 1 inch, G (BSPP) and NPT threads as order options alongside the PT standard, manual or automatic drains, a 5 um element (code W), gauge choices, and a low-pressure regulator type. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR30010JC2GK AirTAC Filter Regulator G3/8, 40 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (G (BSPP) 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 — 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. 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. |
|---|---|
| 10 | Port size PT3/8". 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. |
| 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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeds the air cylinder circuit of a small pneumatic press: the 40 um element strips water and swarf from the shop air, the regulator holds a steady working pressure for consistent forming, and the check valve holds the setting through upstream dips.
Sits in the air drop feeding conveyor stopper and pusher cylinders on a packaging line, delivering clean, regulated air at a set psi so diverters stroke with repeatable force shift after shift.
Conditions the supply to a bench-top leak or fatigue test rig: the 40 um filter protects sensitive instrumentation from condensate and particles while the psi gauge and regulator let the operator dial in and monitor the exact test pressure.
Start with the port and size: this 300-size unit carries a G3/8 port, and the G-series steps up through sizes 200, 300, 400 and 600 as port and flow demand grow - match the step to the air consumption of the circuit it feeds. Choose the drain to suit access: differential-pressure (as fitted here) needs no attention, automatic drains continuously, and manual suits supervised installations. Filter grade is 40 um standard; specify the 5 um W-code element where downstream equipment needs finer filtration. The fitted round gauge reads in psi; MPa and bar scales are also available, and an embedded square gauge is the standard alternative. Thread is G (BSPP) here; PT is the standard and G/NPT are order options. Brackets are optional - this unit ships without one.
Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering.
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 GFR300 as curves rather than a single rated figure, so we do not quote a number. Send us your application details and we will confirm the relevant flow figures from the datasheet before you order.
The differential-pressure drain bleeds collected condensate automatically when the pressure drop across the 40 um element rises, so it needs no day-to-day attention. If you prefer a continuous automatic drain or a simple manual drain for a supervised installation, both are available as order options in this family.
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.