The AirTAC GFR300C15MLF2WGK AirTAC Filter Regulator G1/2, 5 um 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 GFR300C15MLF2WGK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the 300 size with a G1/2 (BSPP) port, the 5 um filtration element (the finer of the two published grades), a manual drain on the metal bowl, and the low-pressure regulator type. It carries the embedded square gauge reading in psi, a reverse/check valve fitted on the regulator, and a 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 series is offered in 200, 300, 400 and 600 sizes with PT, G or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um elements, and gauges scaled in MPa, psi or bar. The exact adjustment range of the low-pressure type is not published, and flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C15MLF2WGK AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| 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) |
Conditioned air for tool-clamp and workholding actuators on a CNC machine, with 5 um filtration ahead of sensitive directional valves and the square psi gauge giving a local setpoint readout.
The low-pressure regulator type is intended for pilot and control loops run at moderate set pressures; confirm the exact adjustment range with us against your loop requirement before ordering.
A filter regulator at the air drop feeding carton-sealing and case-forming cylinders, with the manual drain bled during shift-start checks and the check valve holding the setpoint against upstream dips.
Size and port set the air capacity: step from 200 up through 600 as your flow demand grows, with this unit at 300 and G1/2. Choose the drain to match your maintenance routine: manual (as here) for lines bled on a scheduled round, or automatic / differential-pressure where unattended draining is preferred. Pick 40 um for general circuit protection or 5 um (this unit) for finer dirt and entrained-water removal. Gauges can be ordered square or round with MPa, psi or bar scales; the thread is PT as standard with G and NPT as order options, and the bracket is included. The L code marks the low-pressure regulator type - its exact adjustment range is not published, so confirm it with us. Flow is published as curves, not a single rating, so ask us to check 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. Send us your line pressure and air demand and we will confirm the flow figures from the datasheet for this exact model before you order.
The manual drain on the metal bowl is opened by hand to release collected condensate, which suits installations checked on a regular maintenance round. If you would rather not rely on operator rounds, the same GFR series is available with automatic or differential-pressure drains.
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.