The AirTAC GFR300C15MJF2 AirTAC Filter Regulator PT1/2 Manual Drain 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 GFR300C15MJF2 is an AirTAC GFR300 filter regulator: water-and-particulate filtration and pressure regulation combined in one body, sized for a PT1/2 (1/2 in) port. This configuration carries a 40 um standard filter element, a manual drain, a standard regulator adjustable from 0.05 to 0.9 MPa (7-130 psi), and an embedded square gauge reading in psi. Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and the size 300 bowl is polycarbonate (PC). No check valve is fitted, and no mounting bracket is included in this code.
It is a genuine AirTAC part from the GFR300 series, one of four sizes (200/300/400/600) spanning ports from 1/8 to 1 in, with options that include automatic or differential-pressure drains, a 5 um element (code W), gauge scales in MPa or bar, G (BSPP) or NPT threads, and a mounting bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C15MJF2 AirTAC Filter Regulator PT1/2 Manual Drain |
|---|---|
| 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 for pick-and-place grippers and cylinder drives on a beverage bottling line, with the 1/2 in port feeding a main drop from the plant air ring.
Powers air-operated diverter and pusher arms on a parcel sortation conveyor, holding the supply steady as lines start and stop through the shift.
A feed point for spray guns and air tools in an automotive paint booth, where the 40 um element removes water and pipe scale before the regulator sets gun pressure.
Choose the size by port and flow: 300 sits mid-range in the GFR family, with PT1/2 here and 1/8 to 1 in available across sizes 200-600. Drain type is a real decision: manual (this code) needs periodic draining but allows regulation from 0.05 MPa, while automatic (A) and differential-pressure (blank) drains regulate from 0.15 MPa. Element grade is 40 um standard; specify W for the 5 um option where finer filtration is needed. The square gauge on this unit reads psi; MPa and bar scales are alternatives, and an external round gauge is optional. Thread is PT as standard - G (BSPP) and NPT are order options - and a bracket can be specified where this no-bracket code does not suit the mounting.
Flow for the GFR300 series is published as curves, not a single rated number, so 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 GFR300 flow as capacity curves rather than a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and datasheet figures for this exact model on request.
The M in the code selects a manual drain: someone opens the drain valve to release collected water. The GFR300 family also comes with automatic (code A) or differential-pressure (blank) drains. Note that the manual-drain version regulates from 0.05 MPa, while the automatic and differential-pressure versions start at 0.15 MPa.
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.