The AirTAC GFR300C15JC1WTK AirTAC Filter Regulator NPT1/2 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 GFR300C15JC1WTK is a filter regulator: water and particulate filtration plus pressure regulation combined in one body, so one unit conditions the air and holds your downstream pressure instead of two. This size 300 configuration is built around a 1/2 in NPT port and carries the fine 5 um filter element (code W) rather than the standard 40 um, a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough, and a standard regulator with an adjustment range of 0.15-0.9 MPa (20-130 psi). A round pressure gauge scaled in MPa is fitted so the set pressure is visible at the unit, a reverse/check valve holds downstream pressure when the upstream supply is lost, and no mounting bracket is included. The polycarbonate bowl suits the non-freezing -5 to 70 C operating range, and the maximum inlet pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and is configurable by drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge style and scale, thread (PT standard, with G and NPT as order options), bracket and reverse valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR300C15JC1WTK AirTAC Filter Regulator NPT1/2 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) |
Feeds the tool-clamp and pallet-actuator circuit on a CNC machining centre: the 5 um element protects the fine pilot valves from grit and the regulator holds a steady clamp pressure, with the check valve maintaining the circuit if shop air dips.
Mounted at the drop of a vehicle assembly line serving impact wrenches and nutrunners: it strips water and wear particles before the tools and regulates supply pressure to the setting the tool stations are set up for, read directly off the fitted MPa gauge.
Conditions the air feeding the valve island and cylinder bank on a carton-forming packaging machine: clean, regulated air keeps the pick-and-place cylinders sequencing consistently shift after shift, and the differential-pressure drain handles condensate without daily attention.
Size and port are the first choice: step up from 200 through 300, 400 and 600 as your port size and air demand grow - this unit is size 300 with a 1/2 in NPT port. Choose the filter grade for the job: 40 um is the standard element, while the 5 um element fitted here (code W) suits finer downstream needs such as precision valves and instruments. Drain type matters: differential-pressure (as here) needs no attention at normal duty, automatic drains continuously, and manual suits intermittent or monitored installations; note the regulator range differs by drain type (0.15-0.9 MPa for differential-pressure and automatic, 0.05-0.9 MPa for manual). Gauge style and scale (round or embedded square; MPa, psi or bar), thread (PT standard, G or NPT to order), bracket and reverse valve complete the decode. Because flow is published only as curves and not as a single rated number, send us your flow and pressure requirements 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 GFR series as characteristic curves rather than a single rated figure, so there is no one rated-flow number we can honestly quote. Tell us your working pressure and required air consumption and we will confirm the flow from the datasheet curves for this exact model before you order.
The W in the model code specifies the optional 5 um filter element in place of the 40 um standard. The finer grade suits downstream equipment that tolerates less particulate, such as precision valves, instruments and sensitive actuators. If your application is fine with general-purpose filtration, the standard 40 um version of the same size 300, 1/2 in unit is available - ask us to quote it.
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.