
The AirTAC Airtac GFR Filter Regulator GFR300C15AC1W 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.
GFR300C15AC1W is a genuine AirTAC GFR series filter regulator, combining filtration and pressure regulation in one body with a drain bowl and no lubricator. This code is size 300 with PT1/2 in ports, the finer 5 um (W) element instead of the standard 40 um, an automatic drain, and the external round pressure gauge in MPa scale. With the automatic drain, the regulated outlet is adjustable over 0.15-0.9 MPa (20-130 psi).
Maximum inlet pressure is 1.0 MPa (145 psi) and working temperature is -5 to 70 C, non-freezing; the size 300 bowl is polycarbonate (PC), while 600-size bowls are aluminium alloy. The GFR family also runs in 200/400 sizes with ports from 1/8 in to 1 in, G (BSPP) or NPT threads, embedded square gauges, a reverse (check) valve option and bracket choices. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures for your application on request.
| Model | Airtac GFR Filter Regulator GFR300C15AC1W |
|---|---|
| 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) |
Filtered, regulated air to torque tools and clamps at automotive sub-assembly benches, with the 5 um element protecting the inline valves and cylinders.
Conditioning the branch feeding pneumatic positioners and transmitters on a process skid, with the round MPa gauge giving operators a local reading.
Supply to the valve islands actuating fill and capping heads on a beverage filling line, with the automatic drain clearing condensate between cycles.
Decodable choices on this GFR300: size and port step (200 to 400 bodies, ports 06 = 1/8 in through 25 = 1 in) - this code is 300 with 1/2 in PT ports; drain, where A (this code) is automatic, blank is differential-pressure and M is manual (manual widens regulation to 0.05-0.9 MPa / 7-130 psi); element grade - this code carries the 5 um W grade against the 40 um standard; gauge - the external round gauge in MPa here, with square embedded gauges in MPa/psi/bar scales as alternatives; and thread, PT as standard with G (BSPP) and NPT as catalogue options. Flow is published as curves, not a single rating, so send us your demand figures and we will confirm sizing on request.
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.
Flow for the G series is published as curves rather than a single rated figure, so we cannot quote one number here. Share your line pressure and air demand and we will confirm the sizing from the GFR300 datasheet on request.
PT is the standard thread on this GFR300 code. G (BSPP) and NPT are catalogue thread options on the same unit - specify the trailing thread letter in the model code so it matches your existing fittings and piping.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.