The AirTAC GFR300C15AJC1WTK AirTAC Filter Regulator NPT1/2 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 GFR300C15AJC1WTK is an AirTAC GFR300 filter regulator: a 1/2 in (NPT1/2) unit that removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration carries the optional 5 um filter element (code W), an automatic drain that ejects collected condensate without daily attention, an external round pressure gauge scaled in MPa, and a reverse/check valve that holds the downstream setting if upstream pressure is lost. The standard regulator adjusts from 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, and this unit is ordered without a mounting bracket.
This is a genuine AirTAC part. GFR filter regulators are published in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, and can be ordered with manual or differential-pressure drains, the 40 um standard element, embedded square or external round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C15AJC1WTK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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 filtered, regulated air to the tool changer and clamping fixtures of a CNC machining centre, where the 5 um element protects fine pilot valves and the check valve holds settings through supply dips.
Regulating air to carton-forming and sealing cylinders on a packaging line, with the automatic drain handling condensate through humid production shifts without operator attention.
Supplying steady pressure to diverter and stopper gates on a bottling conveyor, where the round MPa gauge lets technicians verify setpoints at a glance and the 5 um element keeps gate valves clean.
Size and port set the capacity: GFR300 takes 1/2 in ports and sits in the middle of the 200/300/400/600 range, so step up a size for high demand or down for small lines. Drain type is a real choice: automatic (this unit) suits unattended duty, manual suits periodic checks, and differential-pressure drains on sensed pressure drop. Filter grade is 40 um standard or 5 um (this unit, code W) where finer protection matters. Gauges come embedded square or external round, scaled in MPa, psi or bar. Thread is PT as standard with G and NPT as order options, and brackets are optional. Flow is published as curves, not a single rated figure, so send us your demand 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 GFR flow as curves rather than a single rated figure, so we do not quote a number here. Send us your operating pressure and air demand and we will confirm the flow from the datasheet for your conditions before you order.
The standard element is 40 um; this unit carries the optional 5 um element (code W), which filters finer to protect sensitive downstream components such as pilot valves and precision cylinders. If your circuit only needs coarse water and particle removal, the 40 um version is the catalogue default. Note that the automatic drain on this unit ejects condensate on its own; manual-drain versions are available to order.
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.