The AirTAC AirTAC GFR300C10AC2WK Filter Regulator PT3/8 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 GFR300C10AC2WK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit is supplied with a PT3/8 port, a fine 5 um filter element (code W, versus the standard 40 um), an automatic drain that ejects collected condensate without manual attention, and a round pressure gauge scaled in psi. A reverse/check valve is fitted, so downstream pressure is held if the upstream supply drops, and the standard mounting bracket is included. As a standard-type regulator it 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 in ambient and media temperatures of -5 to 70 C (non-freezing). The bowl on this size is polycarbonate (PC).
This is a genuine AirTAC part from the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch. Across the range you can specify manual, automatic or differential-pressure drains, 40 um or 5 um filtration, embedded square or external round gauges with MPa, psi or bar scales, and PT, G (BSPP) or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and flow data for your application before ordering.
| Model | AirTAC GFR300C10AC2WK Filter Regulator PT3/8 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) |
Feeding clamps and fixtures on a machining centre: the 5 um element protects precision cylinders from fine particulate and condensate, while the regulator holds a steady clamp pressure and the check valve holds the clamp if shop air drops.
Conditioning the air feeding pick-and-place cylinders and diverters on a packaging conveyor: filtered, regulated air keeps motion repeatable through the shift, and the automatic drain handles condensate without an operator stopping the line.
Supplying positioners and pilot actuators on automated process valves: the 5 um grade and stable regulated pressure suit sensitive pilot stages, and the psi-scaled round gauge lets technicians verify setpoint at the panel.
Choose the size and port step against the air consumption of the downstream circuit: size 300 with its PT3/8 port sits in the middle of the GFR range, with smaller 200 and larger 400/600 units available when the flow demand differs. Drain type is a real choice: automatic (as fitted here) suits unattended duty, manual drain suits supervised installations, and differential-pressure drain is the catalogue default. Filter grade is 40 um standard or 5 um (code W) for finer protection - this unit carries the 5 um element. Gauges can be the embedded square type or an external round gauge, scaled in MPa, psi or bar (this unit: round, psi). Thread is PT as standard, with G (BSPP) and NPT as order options, and a bracket is included.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so we cannot quote a rated flow figure here. Send us your application details and we will confirm the flow curves and datasheet figures so you can size the unit correctly 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 family as curves rather than a single rated figure, so no rated flow number is stated here. Contact us with your application details and we will confirm the datasheet and flow curves so you can check the unit against your air consumption before ordering.
The W in the code specifies the finer 5 um filter element instead of the standard 40 um, which suits circuits with sensitive valves or actuators; the 40 um grade remains available on other variants. The A specifies an automatic drain, which ejects condensate on its own - manual and differential-pressure drains are the other catalogue choices. This unit also carries a reverse/check valve (K) and a round psi gauge (C2), with PT as the standard thread and G or NPT available to order.
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.