The AirTAC GFR300C15F2GK AirTAC Filter Regulator G1/2 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 GFR series combines filtration and pressure regulation in a single body: compressed air passes a 40 um element that strips water and particulate, then a regulator that holds your downstream setting. This GFR300C15F2GK is the size 300 unit with a G1/2 port, a differential-pressure drain, a standard regulator adjustable from 0.15 to 0.9 MPa (20-130 psi), an embedded square gauge scaled in psi, a fitted reverse/check valve (code K) and the mounting bracket included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drain, an optional 5 um element (code W), gauge scales in MPa, psi or bar, and G (BSPP) or NPT threads as order options alongside the PT standard. At size 300 the bowl is polycarbonate (size 600 uses aluminium alloy). Published flow data appears as curves rather than a single rating, so ask us to confirm the figures for your application before ordering.
| Model | GFR300C15F2GK AirTAC Filter Regulator G1/2 |
|---|---|
| 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 ahead of a CNC machine's pneumatic valve stack, it removes condensate and particulate from the mill's compressed-air main and holds a steady regulated setting for clamps and tool-change cylinders.
Mounted where the packaging line's air drop feeds its cylinders and diverters, it delivers filtered air and keeps the downstream pressure stable through upstream swings during the shift.
On a palletising robot's gripper circuit, the G1/2 filter regulator gives clean, regulated air to the suction generator and gripper cylinders, with the fitted check valve blocking backflow through the unit.
Choose the size step first: 200, 300, 400 and 600 correspond to increasing port sizes (1/8 through 1 inch) and increasing flow capacity, so match the step to your line's air demand. Then set the options that matter: drain type (differential-pressure as on this unit, automatic code A, or manual code M), filter grade (40 um standard, 5 um with W for finer particulate), gauge scale (this unit carries the square gauge in psi; MPa and bar are alternatives), thread (PT standard, G or NPT to order) and bracket (included here; code J omits it).
Because flow for the GFR series is published as curves rather than one rated number, ask us to confirm sizing against your application 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, not as a single rated figure, so we do not quote one number here. Send us your line pressure and air consumption and we will confirm the flow from the datasheet for this exact model before you order.
K means a reverse/check valve is fitted, so air flows one way through the unit and backflow through it is prevented. Other decodable choices on this family are the drain (blank = differential-pressure, A = automatic, M = manual), the filter grade (blank = 40 um, W = 5 um) and the gauge scale (1 = MPa, 2 = psi, 3 = bar).
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.