The AirTAC GFR30010AC3TK AirTAC Filter Regulator NPT3/8 Auto Drain 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 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 GFR30010AC3TK is an AirTAC GFR300 filter regulator: a single body that removes water and particulate from compressed air and holds downstream pressure steady. This unit is built on the 300 size with a 3/8 in NPT port, an automatic drain that ejects collected condensate without daily attention, a 40 um filter element, a round pressure gauge reading in bar, a reverse (check) valve, and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the regulation range is 0.15-0.9 MPa (20-130 psi). The polycarbonate bowl suits operating temperatures of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600, with port options from 1/8 to 1 in, G (BSPP) or NPT thread on request, manual or differential-pressure drains, a 5 um element (code W), and gauge choices in MPa, psi or bar scales. Rated flow figures are published as curves rather than a single number, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30010AC3TK AirTAC Filter Regulator NPT3/8 Auto Drain |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, bar 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". |
| A | Drain: Automatic 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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) |
Point-of-use conditioning at CNC machining centers: the filter element strips water and particulate before it reaches solenoid valves, while the regulator holds a steady set pressure to tool clamps and workholding cylinders.
Feeding pick-and-place and carton-sealing cylinders on a packaging conveyor line: clean, regulated air keeps gripper strokes and seal jaws repeatable through shift-long runs, and the automatic drain copes with condensate from compressor cycling.
Conditioning the air supply to a robotic welding cell: the reverse (check) valve holds downstream pressure if the main supply dips, protecting weld-gun clamp cylinders and the valve manifold from pressure loss mid-weld.
Size and port set the air capacity: this 300-size unit carries a 3/8 in NPT port, and stepping up to the 400 or 600 size increases both port and flow capacity. Drain choice matters: automatic (this unit) handles condensate on its own, manual needs operator attention but widens the regulation range to 0.05-0.9 MPa (7-130 psi), and differential-pressure drains only when flow demand is high. Filter grade is 40 um standard; specify code W for the 5 um element when finer particulate capture is needed. The gauge on this unit reads bar; MPa and psi scales are available, and the embedded square gauge can be specified as an external round gauge instead. Thread is PT as standard with G (BSPP) and NPT as order options - this unit carries NPT. A mounting bracket is included. Because rated flow is published as curves rather than a single figure, send us your flow 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. 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, not a single rated number, so we do not quote a figure here. Tell us your required flow and downstream pressure and we will confirm the datasheet curve and correct sizing on request before you order.
This unit has an automatic drain, so collected condensate is ejected without manual attention - useful on lines that run unattended. With an automatic or differential-pressure drain the regulation range is 0.15-0.9 MPa (20-130 psi); choosing a manual-drain version widens it to 0.05-0.9 MPa (7-130 psi).
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.