The AirTAC GFR300C15AC2W AirTAC Filter Regulator PT1/2, 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 GFR300C15AC2W is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in a single body. This size 300 unit is configured with a PT1/2 (1/2 in) port, a 5 um filter element for finer filtration than the standard 40 um grade, and an automatic drain that ejects collected condensate without anyone opening the bowl. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), an external round gauge on a psi scale is fitted for setpoint reading, and a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, gauge style and scale options, and G or NPT thread variants to order. Flow figures for this unit are published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C15AC2W AirTAC Filter Regulator PT1/2, 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) |
Feeds clean, regulated air to the tool-change clamps and pneumatic actuators on a CNC machining centre, with the 5 um element protecting spool valves from fine particulate and the automatic drain handling condensate between shifts.
Mounted at the drop of a packaging conveyor, it regulates the supply to diverters, bag sealers and hold-down clamps, with the psi gauge letting line staff verify the setpoint and the automatic drain keeping water out of the seal cylinders.
Installed at a workbench drop in an assembly plant, it filters and regulates air for air tools and small press cylinders, with the bracket fixing the unit to the frame and the 5 um grade suiting sensitive downstream components.
Start with the port and size: this unit steps up to PT1/2 in the 300 frame, which suits lines drawing more air than 1/4 in or 3/8 in points; match it against the flow curve for your consumption before ordering. Choose the drain to match attendance: automatic drain (fitted here) suits unattended or hard-to-reach installations, manual drain suits stations visited daily, and differential-pressure drain is the catalogue default. The 5 um element (code W) is the finer choice over the standard 40 um where downstream valves and cylinders need cleaner air. Gauge style and scale are selectable - this unit carries an external round gauge on psi; MPa and bar scales and an embedded square gauge are alternatives. Thread is PT as standard with G (BSPP) and NPT as order options, and a bracket is included. Flow is published as curves, not a single rating, so 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 GFR300 series as curves rather than a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Send us your application's air consumption and working pressure and we will confirm the relevant datasheet flow figures for this PT1/2 unit on request.
This unit is fitted with an automatic drain, which discharges collected condensate from the bowl on its own - the right choice for installations that are not visited daily or sit in awkward positions. The GFR300 is also available with a manual drain or the differential-pressure drain default if your maintenance routine suits those instead.
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.