The AirTAC GFR300C15AJNT AirTAC Filter Regulator NPT1/2 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 See datasheet 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 GFR300C15AJNT is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has a 1/2 in NPT port, an automatic drain that expels collected condensate without manual attention, and the standard 40 um filter element. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -5 to 70 C in non-freezing conditions. No gauge is fitted on this variant and no mounting bracket is included.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with a choice of drain type (differential-pressure, automatic or manual), a 5 um element option (code W), optional gauge with MPa, psi or bar scale, and PT (standard), G or NPT threads. Flow figures are published as curves rather than a single rating, so ask us to confirm sizing and datasheet details for your application before ordering.
| Model | GFR300C15AJNT AirTAC Filter Regulator NPT1/2 |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT 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 — factory standard, Factory standard 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. 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. |
|---|---|
| C1 | Port size See datasheet. 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (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. |
| (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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Installed at a compressed-air drop on a factory floor, the unit cleans water and particles from the supply and holds a set pressure for the tools and actuators fed from that drop, while the automatic drain keeps condensate moving out without daily attention.
Mounted ahead of the cylinder and valve stack on a packaging or material-handling conveyor, it protects the downstream components from water and debris and keeps their operating pressure steady through the shift.
Fitted on the air inlet of a CNC machine or assembly press, it conditions the incoming air and regulates the pressure feeding clamps, tool-changers and other pneumatic functions, with the 40 um element handling general-purpose shop air.
Start with the port and size step: this unit is size 300 with a 1/2 in NPT port; larger sizes carry larger ports and higher flow capacity, so match the step to your line's air demand. Choose the drain to suit access: automatic (as here) suits installations that are not checked daily, manual suits attended stations, and differential-pressure draining is the catalogue default. If finer filtration is needed, the 5 um element (code W) is available instead of the standard 40 um. Thread is PT as the catalogue standard, with G and NPT as order options; brackets and gauge options (embedded square or external round, MPa/psi/bar scale) can be specified on related variants.
Because flow is published as curves rather than a single rated figure, we cannot quote one number here. Send us your application's air 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. 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 series as curves rather than a single rated figure, so we do not quote one number. Tell us your application's air demand and we will confirm the sizing against the datasheet on request before you order.
On this unit the automatic drain (code A) discharges collected condensate from the bowl without anyone opening it, which suits installations that are not checked every day. The catalogue alternatives are the differential-pressure drain (the default code) and the manual drain (code M), which is emptied by hand. Note the regulation range differs by drain type: automatic and differential-pressure drains give 0.15-0.9 MPa (20-130 psi), while the manual drain allows 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.