The AirTAC GFR300C08JC2WTK AirTAC Filter Regulator NPT1/4 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 GFR300C08JC2WTK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is built around a 1/4 in NPT port and a 5 um filter element (code W) for finer particle removal than the standard 40 um grade. Condensate is removed by a differential-pressure drain, the fitted round gauge reads outlet pressure in psi, and a reverse/check valve is fitted. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi); maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The 300-size bowl is polycarbonate (PC), and this unit is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR300 sits in the GFR range of 200/300/400/600 sizes, with factory options that include differential-pressure, automatic or manual drains, 40 um or 5 um filter grades, gauges scaled in MPa, psi or bar, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C08JC2WTK AirTAC Filter Regulator NPT1/4 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. |
|---|---|
| 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) |
Feeding a packaging machine's directional-valve manifold with clean, regulated air: the 5 um element protects spool clearances from fine particulate while the regulator holds a stable working pressure for consistent bag sealing and jaw actuation.
Conditioning shop-air supply to bench-mounted pneumatic test rigs and sample-handling cylinders, where the finer 5 um grade and a psi-scaled gauge give operators clean air and a readable, repeatable set pressure.
Supplying air to gate, stopper and diverter cylinders on a conveyor line, with the reverse/check valve holding downstream pressure if upstream supply dips and the differential-pressure drain clearing condensate during normal running.
Choose the size and port step against the air demand of your circuit: the 300 size with its 1/4 in port is the mid step in the GFR range, and larger sizes carry larger ports and more flow. This unit already carries the 5 um element; the standard grade is 40 um, so step down only where downstream equipment needs the finer rating. Drain choice matters: differential-pressure (as fitted here) passes condensate automatically with flow, automatic drains discharge independently, and manual drains suit low-condensate points. Gauge scale (MPa, psi or bar) and thread (PT standard, G or NPT to order) are selectable, and a mounting bracket can be added where the unit is not panel- or body-mounted. Flow is published as curves, not a single rating, so send us your application details and we will confirm sizing against the datasheet 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 as curves, not as a single rated number, so we do not quote a l/min, m3/h or SCFM figure for this unit. Send us your application details - working pressure and the air demand of the equipment it will feed - and we will confirm the flow figures from the datasheet so you can size it correctly before ordering.
The W in the code GFR300C08JC2WTK selects the optional 5 um filter element, one grade finer than the 40 um standard. Choose 5 um where downstream valves, cylinders or instruments are sensitive to fine particles; stay with 40 um for general plant air where the finer grade is not required. Both grades are catalogue options across the GFR range.
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.