The AirTAC GFR300C15AC2 AirTAC Filter Regulator 1/2 in PT, 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 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 GFR300C15AC2 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in one compact body. This unit is built on the GFR300 size with a 1/2 in PT port, an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, and a round pressure gauge reading in psi. The standard-type regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and it operates from -5 to 70 C (non-freezing). The polycarbonate bowl is the standard material for the 300 size.
This is a genuine AirTAC part. The GFR filter-regulator family spans four sizes (200, 300, 400 and 600) with ports from 1/8 to 1 in, and options include manual or differential-pressure drains, a 5 um element (code W), square or round gauges with MPa, psi or bar scales, G or NPT threads, and bracket mounting. Because AirTAC publishes flow only as curves rather than a single rating, we confirm flow and datasheet figures for your application on request.
| Model | GFR300C15AC2 AirTAC Filter Regulator 1/2 in PT, Auto Drain |
|---|---|
| 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) |
Filter and regulate the shop-air feed to a CNC machine's pneumatic valves, tool-clamp circuits and chip-clearing nozzles, holding a steady setpoint despite mill-pressure swings.
Condition the air feeding cylinders and grippers on a packaging or bottling conveyor, so carton-sealing, filling and labeling stations see clean, dry air at a stable pressure.
Supply filtered, regulated air to the clamp and fixture circuits on an automotive assembly line, protecting directional valves from water and debris while keeping clamp force consistent.
Choose the size and port step (200 through 600, 1/8 to 1 in) against the flow your line needs - larger sizes carry larger ports and more flow. Pick the drain to match your maintenance habits: automatic (this unit) empties the bowl on its own, manual needs an operator, and the differential-pressure default drains only when the pressure drop warrants it. The 40 um element is standard; specify the 5 um W element where downstream equipment needs finer filtration. Gauges come as an embedded square type or an optional external round type with MPa, psi or bar scales - this unit carries a round psi gauge. Thread is PT as standard, with G (BSPP) and NPT available to order; a mounting bracket is included. 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 GFR300 as curves rather than a single rated figure, so there is no one number we can quote honestly. Send us your inlet pressure, setpoint and expected air demand, and we will confirm the flow from the datasheet before you order.
This unit's automatic drain expels collected condensate on its own, so the bowl keeps working unattended - useful on lines that run without an operator nearby. A manual drain relies on someone opening it regularly, and the differential-pressure default drains only when the element loads up. All three drain types are orderable 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.