The AirTAC GFR300C08AC3TK AirTAC Filter Regulator NPT1/4 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 GFR300C08AC3TK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 300-size unit is threaded NPT1/4 (1/4 in), carries the 40 um standard filter element with an automatic drain, and is fitted with a round pressure gauge scaled in bar, a reverse (check) valve and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options that include manual or differential-pressure drains, a 5 um (W) element, gauge scales in MPa, psi or bar, and G (BSPP) or NPT threads in place of the PT standard. On this 300 size the bowl is polycarbonate (PC). Flow and other datasheet figures are published as curves rather than a single rating, so we confirm them on request.
| Model | GFR300C08AC3TK AirTAC Filter Regulator NPT1/4 |
|---|---|
| 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. |
|---|---|
| C0 | 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-C0 (two-unit set) |
Feed clamp and swing cylinders on a machining-cell fixture with air that is free of water and swarf and held at a stable, repeatable setting, so workpieces are held consistently part after part.
Install at the inlet of a solenoid valve manifold on packaging machinery to keep condensate and particles out of the valves while setting the circuit pressure the actuators were designed for.
Supply the air cylinders that push diverters, stops and product guides along a conveyor line, with the check valve holding the downstream setting if upstream pressure dips.
Step through the GFR sizes (200/300/400/600) and port codes (06 to 25) to match your line size and air demand; this model is 300 size with a 1/4 in NPT port. Choose the drain: automatic (fitted here), manual, or the differential-pressure default - note that manual-drain versions widen the regulation range to 0.05-0.9 MPa (7-130 psi) versus 0.15-0.9 MPa (20-130 psi) on automatic and differential-pressure units. Filtration is 40 um standard; specify W for the 5 um element where finer filtration is needed. Gauge scale is selectable in MPa, psi or bar; this model carries a round gauge scaled in bar. Thread is PT as standard with G (BSPP) and NPT as order options, and a bracket is included unless J is specified. Because flow is published as curves rather than a single rating, 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 flow for this series as curves, not as a single rated figure, so there is no honest one-number answer. Send us your air demand and line conditions and we will confirm the sizing from the datasheet curves on request before you order.
The automatic drain on this unit expels collected condensate without anyone having to open it, which suits unattended or hard-to-reach installations. Manual and differential-pressure drains are catalogue options on the GFR family; note that manual-drain versions carry a wider regulation range of 0.05-0.9 MPa (7-130 psi) versus 0.15-0.9 MPa (20-130 psi) here.
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.