The AirTAC GFR300C15AF1T 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 GFR300C15AF1T is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This configuration is built around a 1/2 in NPT port, a 40 um standard filter element, an automatic drain that clears collected condensate without daily attention, and the embedded square gauge reading in MPa. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), the unit accepts up to 1.0 MPa (145 psi) inlet pressure, and it operates from -5 to 70 C in non-freezing conditions. A mounting bracket is included; no reverse (check) valve is fitted.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, with G (BSPP) and NPT thread options, manual, automatic or differential-pressure drains, an optional 5 um element (code W), gauge scale choices of MPa, psi or bar, and low-pressure variants. At size 300 the bowl is polycarbonate (PC). Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR300C15AF1T 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) |
Feeding a spray booth or coating station, the unit strips water and pipe scale from the drop leg and holds a steady regulated pressure so atomizing air and actuated air stay consistent through the shift.
On a packaging or palletizing conveyor run, the filter regulator cleans the supply air ahead of pusher and clamp cylinders and keeps their working pressure stable so stroke timing does not drift as the header pressure moves.
On a skid of air-actuated ball or butterfly valves, the unit conditions the instrument air and regulates it to the actuator and positioner supply requirement, with the automatic drain handling condensate in an unattended area.
Step through the real choices when selecting a GFR unit. Size 200/300/400/600 steps up in port (1/8 to 1 in) and flow capacity, so match the size to the line demand. Drain type matters: this unit is automatic (self-draining condensate); manual and differential-pressure drains are also available, and the regulation range differs by drain - automatic and differential-pressure units adjust 0.15-0.9 MPa (20-130 psi) while manual-drain units adjust 0.05-0.9 MPa (7-130 psi). Filter grade is 40 um standard; choose 5 um (code W) for finer protection. The embedded square gauge is standard with MPa, psi or bar scales, and an external round gauge is optional. Thread: this unit is NPT; PT is the standard thread and G (BSPP) is a catalogue option. A mounting bracket is included (code J deletes it). Flow is published as curves, not a single rating, so 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. 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, not as a single rated figure, so we do not quote a number here. Tell us your line pressure, working pressure and expected air demand, and we will confirm the sizing against the datasheet curves on request before you order.
The automatic drain expels collected condensate on its own, so the bowl does not need daily manual draining - useful for units mounted in out-of-the-way or unattended spots. Manual and differential-pressure drain versions are also available in the family. Note the regulator adjustment range depends on drain type: automatic and differential-pressure units adjust 0.15-0.9 MPa (20-130 psi), while manual-drain units adjust 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.