The AirTAC GFR300C15JC2K AirTAC Filter Regulator 1/2 in, Psi Gauge 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 GFR300C15JC2K is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This size 300 unit is threaded PT1/2 (1/2 in), carries a 40 um filter element with a differential-pressure drain, and regulates between 0.15 and 0.9 MPa (20-130 psi). The C2 suffix adds an external round gauge reading in psi, and the K suffix fits a reverse (check) valve; no mounting bracket is supplied (code J). The polycarbonate bowl suits non-freezing air from -5 to 70 C, and the maximum inlet pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, PT, G or NPT threads, 40 um or 5 um (W) filtration, automatic, manual or differential-pressure drains, and MPa, psi or bar gauge scales. AirTAC publishes flow as curves rather than a single rated figure, so ask us to confirm datasheet figures for your application before ordering.
| Model | GFR300C15JC2K AirTAC Filter Regulator 1/2 in, Psi Gauge |
|---|---|
| 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-change and clamping circuits of a CNC machining centre, where the 1/2 in port matches the main drop and the round psi gauge lets setters verify the setpoint at the machine.
Conditioning air for the cylinders and diverters on a carton packaging line: the 40 um element keeps debris out of directional valves, the regulator holds a steady setpoint, and the check valve holds downstream pressure if the supply dips.
Dropping a regulated branch off a factory ring main to feed a work cell, with the external round gauge for local psi reading and the differential-pressure drain clearing collected water as air flows through the bowl.
Choose the size and port for the air your line consumes: this unit is size 300 with a PT1/2 port, and larger sizes move more air at a given pressure drop. Pick the drain to match your maintenance routine - differential-pressure (as fitted here) bleeds the bowl as air passes, automatic (A) drains unattended, and manual (M) drains only when opened. The 40 um element is standard; specify W for 5 um where finer protection matters. Gauge options are the embedded square gauge or this external round gauge, scaled in MPa, psi or bar; PT is the standard thread with G and NPT as order options, and a mounting bracket is optional (this configuration omits it). Because flow is published as curves rather than a single rating, 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 GFR series as curves rather than a single rated figure, so we do not quote one number. Send us your application details and we will confirm the flow and datasheet figures for this size 300, PT1/2 unit on request.
C2 specifies an external round gauge scaled in psi (the embedded square gauge in MPa, psi or bar is the standard alternative), and K fits a reverse (check) valve that holds downstream pressure if the supply fails. J means no mounting bracket is supplied; a bracket version can be ordered if you need one.
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.