The AirTAC GFR300C10AC2WTK AirTAC Filter Regulator NPT3/8 5um 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 GFR300C10AC2WTK is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds the downstream pressure steady. This configuration is the 300 size with a 3/8 in NPT port, the 5 um filter element (the finer of the two grades), an automatic drain that ejects collected condensate without manual attention, a round pressure gauge reading in psi, a built-in check valve that holds downstream air when upstream pressure drops, and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the regulating range is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C (non-freezing). The bowl is metal.
This is a genuine AirTAC part. The GFR family spans 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, and options including manual or differential-pressure drains, the 40 um standard element, embedded square or external round gauges scaled in MPa, psi or bar, and G (BSPP), NPT or PT threads. AirTAC publishes flow for this series as curves rather than a single rated figure, so ask us to confirm the flow and datasheet figures for your application before ordering.
| Model | GFR300C10AC2WTK AirTAC Filter Regulator NPT3/8 5um |
|---|---|
| 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 tool-clamp and tool-change cylinders on a CNC machining centre: the 5 um element keeps scale and sludge out of the clamp circuit, the regulator holds the clamping pressure the fixture was set up with, and the check valve keeps the clamp from releasing on a supply dip.
On a carton packaging line, the unit conditions the air feeding stopper, clamp and divert cylinders at the drop: filtered and regulated so cylinder speed and seating force stay repeatable through the shift, with the automatic drain handling condensate on a line that runs unattended.
On a water-treatment or chemical dosing skid, conditioning the supply to quarter-turn pneumatic actuators: the regulator sets the actuator torque pressure, the 5 um element protects the solenoid pilot valves, and the check valve holds actuator position if the header pressure sags.
Choose the size step (200, 300, 400, 600) and the port (here 3/8 in NPT) against the air demand of the downstream circuit - larger sizes carry more flow, though AirTAC publishes flow as curves rather than one rated number, so let us check the fit against your demand. Drain type is a real choice: automatic (this unit) suits unattended duty, manual suits periodic blow-down, and the differential-pressure default bleeds only while air is flowing. Filter grade: 40 um is the standard element and 5 um (this unit, code W) protects finer components. Gauges come embedded square or as an external round gauge, scaled in MPa, psi or bar. Thread is PT as the standard with G and NPT as order options; a bracket is included unless code J is specified. Confirm sizing with us 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. Tell us your working pressure and air demand and we will confirm the flow from the datasheet for this exact configuration before you order.
The W code fits the 5 um element instead of the 40 um standard, which suits circuits with precision pilots or sensitive actuators. The A code fits the automatic drain, which ejects condensate on its own so the bowl does not need manual blow-down on unattended lines. Both are factory-fitted in this configuration, along with the round psi gauge and the check valve (code K).
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.