The AirTAC GFR300C10F3WTK AirTAC Filter Regulator NPT3/8, 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 GFR300C10F3WTK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 300-size unit is ordered with a 3/8 in NPT port, a 5 um filter element (the finer of the two published grades), a differential-pressure drain, a square pressure gauge reading in bar, a reverse/check valve, and the mounting bracket. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is published in 200, 300, 400 and 600 sizes with port sizes from 1/8 in to 1 in, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, gauge scales in MPa, psi or bar, and PT (standard), G or NPT threads. Because flow is published as curves rather than a single rated figure, we confirm flow and datasheet figures on request before you order.
| Model | GFR300C10F3WTK AirTAC Filter Regulator NPT3/8, 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) |
Mounted at the machine's air inlet to deliver filtered, pressure-regulated air to tool-clamp and coolant-system actuators, with the 5 um element protecting fine pilot valves on the machine.
Feeding vacuum and gripper cylinders on a carton-forming conveyor station, where the check valve holds the circuit's set pressure if the plant supply is momentarily disconnected.
Installed on the branch feeding filler and capper air cylinders, conditioning the air and holding a stable regulated pressure so bottle-handling motions stay consistent through the shift.
Start with the port step: 300 size carries 3/8 in ports, and the right size depends on the air demand of the circuit - we can check the published flow curves against your application before you order. This unit is already specified with the 5 um (W) element; the standard grade is 40 um if your application does not need finer filtration. Drain is the differential-pressure type here; automatic (A) and manual (M) drains are order options. The fitted square gauge reads in bar, and MPa or psi scales can be ordered instead. Thread is NPT on this unit; PT is the standard thread and G is also a catalogue option. The reverse/check valve (K) holds downstream pressure if the supply line is disconnected. A bracket is included.
Because AirTAC publishes G-series flow only as curves, not as a single rated number, ask us to confirm 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 G-series flow as performance curves rather than a single rated figure, so we do not quote one number. Tell us your inlet pressure and the air demand of your circuit and we will confirm the correct size from the datasheet curves on request before you order.
The W in the code GFR300C10F3WTK selects the 5 um filtration grade instead of the 40 um standard, for applications with finer downstream components; the K selects a reverse/check valve that holds downstream pressure if the supply line is dropped. Both are order choices - the standard build is 40 um with no check valve.
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.