The AirTAC GFR300C10MJF2W AirTAC Filter Regulator PT3/8, 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 GFR300C10MJF2W is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is threaded PT3/8 (3/8 in, PT standard), carries a 5 um filter element for finer filtration than the standard 40 um grade, and drains by hand through a manual drain, so it suits installations where an automatic or differential-pressure drain is not wanted. The standard regulator covers 0.05-0.9 MPa (7-130 psi), the fitted square gauge reads in psi, and the unit is supplied without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing; the size 300 bowl is polycarbonate (PC).
This is a genuine AirTAC part from the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drains, 40 um or 5 um (W) filter grades, square or round gauges with MPa, psi or bar scales, and optional brackets, low-pressure regulators and reverse/check valves. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR300C10MJF2W AirTAC Filter Regulator PT3/8, 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) |
Feeds filtered, regulated air to the tool-change clamping and chuck-actuation circuits of a CNC machining centre, where the 5 um element protects the pilot valves from particles and carried-over water.
Supplies the vacuum-generator and gripper-cylinder circuit on a carton pick-and-place module, holding a steady regulated pressure so grip force stays consistent across the shift.
Conditions the air feeding pneumatic quarter-turn actuators on a water-treatment valve skid, with the manual drain emptied during scheduled rounds at an accessible, attended installation.
Size 300 with a PT3/8 port sits in the middle of the GFR range (sizes 200/300/400/600); step up or down a size when the port or the flow demand of the line changes, and ask us to check the published flow curves against your consumption before ordering. The 5 um (W) element is the finer choice when downstream valves or instruments are sensitive to particles or carried-over water; the standard grade is 40 um. The manual drain on this unit must be emptied by hand, so choose it only where a drain point is accessible or where automatic and differential-pressure drains are not required. The square gauge fitted here reads in psi; MPa and bar scales and an external round gauge are alternatives. Thread is PT as standard, with G (BSPP) and NPT available as order options, and a mounting bracket can be added if the unit will not be screwed directly into a manifold or line. We confirm flow from the datasheet on request because it is published as curves, not a single rating.
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 a l/min, m3/h or SCFM number. Send us your line pressure and the air consumption of the equipment you are feeding, and we will confirm the sizing against the datasheet curves on request before you order.
The M in the code selects the manual drain: condensed water is released by hand instead of automatically. Choose manual where the bowl is easy to reach and rounds are part of the routine; choose the automatic (A) or differential-pressure (blank) drain option where the unit is mounted in a hard-to-reach spot or the line runs unattended. Drain choice does not change the port size or the 0.05-0.9 MPa regulation range of this configuration.
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.