The AirTAC GFR30010ANTK 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 GFR30010ANTK is an AirTAC GFR-series filter regulator: one body that first removes water and particulate from compressed air, then regulates downstream pressure. This 300-size unit is fitted with 3/8 in NPT ports, a 40 um standard filter element, and an automatic drain that ejects collected condensate without manual attention, so the bowl keeps clearing itself while the line runs. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and a reverse/check valve is fitted to hold downstream pressure if the supply side drops. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). No gauge is fitted in this configuration.
This is a genuine AirTAC part. The GFR range is published in 200, 300, 400 and 600 sizes with a choice of PT, G or NPT thread, differential-pressure, automatic or manual drains, a 5 um element option, gauge options and a low-pressure regulator type. Flow data is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR30010ANTK 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 | Not fitted |
| 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. |
| N | No pressure gauge (N). |
| (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. |
| 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) |
Feeding clean, regulated air to a machining centre's pneumatic tool-changer and clamping circuits, with the automatic drain keeping condensate out of the bowl during long unattended shifts.
Regulating supply pressure to conveyor stopper and pusher cylinders on a packaging line, where the check valve holds actuator position if the plant air supply dips.
A point-of-use filter regulator at an assembly cell air drop, removing water and pipe scale at 40 um and setting a stable working pressure for hand tools and small actuators.
Start with the port step: 3/8 in NPT on this 300-size unit suits lines that need more flow than 1/4 in without jumping to the 400 or 600 frames - match the size to your required flow, which we confirm from the published curves on request. The automatic drain on this model suits unattended or hard-to-reach installations; choose manual drain where you prefer controlled, visible blowdown, or the differential-pressure default where drain action should follow the pressure drop. The 40 um element is the standard grade for general plant air; specify the W variant (5 um) where finer filtration is needed downstream.
This unit ships with no gauge, so add an external round gauge (MPa, psi or bar scale) if a local pressure readout is required. NPT is the thread on this code; PT is the catalogue standard and G is also available to order. A mounting bracket is included, and the fitted reverse/check valve maintains downstream pressure on supply loss.
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 series as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and sizing from the datasheet on request before you order.
The N in the code GFR30010ANTK means no gauge is fitted. The GFR300 series accepts an external round gauge with an MPa, psi or bar scale as an order option - ask us and we will confirm the correct gauge configuration for this unit.
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.