The AirTAC GFR300C15MJC2T AirTAC Filter Regulator NPT 1/2 in 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 GFR300C15MJC2T is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a 1/2 in NPT port, a manual drain bowl, a standard 40 um filter element, a standard regulator with an adjustment range of 0.05-0.9 MPa (7-130 psi), and an external round gauge with a psi scale fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The bowl on this 300-size unit is polycarbonate (PC), and no mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and with choices of thread (PT standard, G or NPT to order), drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um with code W), gauge style and scale, bracket and reverse/check valve. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR300C15MJC2T AirTAC Filter Regulator NPT 1/2 in |
|---|---|
| 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 filtered, regulated air to the tool-change clamps and pneumatic actuators on a CNC machining centre, with the round psi gauge letting setters read set pressure directly in US units at the machine.
Installed at the bench drop of a test laboratory to clean water and particles from the compressed air line and hold a stable regulated pressure for bench-mounted pneumatic fixtures.
Supplies conditioned air to the diverters, pushers and stop cylinders on a carton packaging conveyor, with the manual drain bled during shift start-up checks.
Start with the size and port: 300 size with a 1/2 in NPT port suits lines running higher air demand than the 200/1/4 in class; step up to 400 or 600 if your flow curve demands it. Choose the drain to match access: this unit has a manual drain, which needs someone to bleed the bowl periodically - pick automatic (code A) or differential-pressure (blank) for unattended duty. Filter grade is 40 um standard for general plant air; specify 5 um (code W) where downstream valves or instruments need finer filtration. The fitted round gauge here reads in psi; square embedded gauges and MPa/bar scales are the other catalogue options. This code carries no bracket (J) and no reverse/check valve. Because flow is published as curves, not a single rating, ask us to confirm sizing against your application before ordering.
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 series as curves, not as a single rated number, so we do not quote a l/min, m3/h or SCFM figure. Tell us your inlet pressure, set pressure and required flow and we will confirm the correct size from the datasheet curves on request before you order.
This code ends in M, which specifies a manual drain bowl: an operator opens the drain periodically to expel collected water. If the unit will be mounted where nobody drains it regularly, order the automatic-drain version (code A) or the differential-pressure-drain default instead - both are catalogue options on the same GFR300 body.
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.