The AirTAC GFR300C15AJC1WT 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 GFR300C15AJC1WT is a 300-size filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration carries a 1/2 in NPT port, a 5 um filter element (code W), an automatic drain that ejects collected condensate without manual attention, a round pressure gauge scaled in MPa, and no mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi). Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of port, thread (PT standard, G and NPT as order options), drain type, filter grade (40 um standard, 5 um optional), gauge style and scale, and bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR300C15AJC1WT 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) |
Filtered and regulated air feeding the tool-change clamps and pneumatic gates of a machining centre, with the 5 um element keeping fine debris out of the machine's valves.
A conditioning point ahead of the cylinders and flap-fold actuators on a carton-sealing conveyor, holding a steady working pressure as line demand fluctuates.
Clean, regulated air purging and pressurising a lab analyser enclosure, where the 5 um grade and automatic drain protect sensitive internal pneumatics unattended.
Start with the port step: the 300 size with a 1/2 in NPT port suits lines that need more flow than 1/4 in or 3/8 in take-offs, but sizing must be checked against the flow curve for your consumption - we confirm this on request. Choose the drain: automatic (this unit) for duty where nobody opens the bowl, manual where a scheduled check is preferred, or the differential-pressure default. Choose the element: 40 um for general plant air, 5 um (code W, fitted here) where downstream valves, cylinders or instruments need finer protection. Gauge options are the embedded square gauge or an external round gauge, scaled in MPa, psi or bar (this unit: round, MPa). Thread is PT as standard with G (BSPP) and NPT as order options; brackets are optional (not fitted here). Before ordering, send us your flow and pressure requirements and we will confirm the size against the published curves.
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 filter-regulator flow as curves, not as a single rated number, so we do not quote a l/min or SCFM figure. Send us your working pressure and air consumption and we will confirm the correct size against the datasheet curves on request.
This configuration carries code A: an automatic drain that ejects collected condensate without operator attention. The family also offers manual drain (code M) for scheduled checks and a differential-pressure drain as the default. Drain choice affects the regulator adjustment range: with automatic or differential-pressure drain it is 0.15-0.9 MPa (20-130 psi); with manual drain it is 0.05-0.9 MPa (7-130 psi).
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.