The AirTAC GFR300C15MJF2W AirTAC Filter Regulator PT1/2 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 GFR300C15MJF2W is an AirTAC GFR300 filter regulator: one body that strips water and particulate from compressed air and holds the downstream pressure at your setpoint. This configuration is built around a PT1/2 (1/2 in) PT-threaded port, a 5 um filter element (the finer W grade, against the 40 um standard), a manual drain on the bowl, and a fitted embedded square gauge scaled in psi. The regulator is the standard type with a 0.05-0.9 MPa (7-130 psi) adjustment range, the unit takes a maximum inlet pressure of 1.0 MPa (145 psi), and it operates at -5 to 70 C (non-freezing). The size 300 bowl is polycarbonate (PC).
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, ordered with your choice of drain (differential-pressure, automatic or manual), filter grade (40 um standard or 5 um), gauge scale (MPa, psi or bar), thread (PT standard, with G and NPT as order options) and bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C15MJF2W AirTAC Filter Regulator PT1/2 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) |
On a machining cell, the unit filters chip-laden shop air down to 5 um and holds a steady clamp pressure for pneumatic vices and fixtures fed from a 1/2 in ring main.
Packaging machines with air cylinders run on cleaner, pressure-stable air when this filter regulator sits at the line drop feeding the tape heads, pushers and sorting gates.
Filler and capper cylinders on a bottling line get water-stripped, regulated air from this 1/2 in unit, with the psi gauge letting operators verify the setpoint at a glance.
Start from the port and frame: size 300 is the mid frame, and the PT1/2 port must match your air line - step a size up or down if your demand sits near the frame limit, and we will check the flow curve with you. Choose the drain: manual (this unit, code M) means an operator empties the bowl; automatic or differential-pressure drain suits unattended cells, and manual drain also gives the wider 0.05-0.9 MPa (7-130 psi) regulation range. Choose the filter grade: 40 um is the standard element, 5 um (this unit, code W) for finer protection of downstream equipment. The embedded square gauge is fitted here with a psi scale; MPa or bar scales and an external round gauge are options. Thread is PT as standard, with G (BSPP) and NPT as order options. This configuration has no mounting bracket (code J) - select a bracket variant if you need to panel-mount. Flow is published as curves, not a single rating, so confirm sizing with us 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 as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and line pressure and we will confirm the flow and datasheet figures for this exact model on request.
This unit carries code M - a manual drain - so the bowl is emptied by hand. Choose manual where an operator walks the line; choose automatic or differential-pressure drain for unattended cells. The manual-drain version also carries the wider 0.05-0.9 MPa (7-130 psi) regulation range.
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.