Airtac GFR Filter Regulator GFR300C10MJNWK
The AirTAC Airtac GFR Filter Regulator GFR300C10MJNWK 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.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GFR Filter Regulator GFR300C10MJNWK
GFR300C10MJNWK is a genuine AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in one body, in size 300 with a 3/8 in PT port. In this configuration the W suffix selects the finer 5 um element instead of the standard 40 um, M gives a manual drain on the polycarbonate bowl, J omits the mounting bracket, N omits the gauge, and K fits a reverse (check) valve. With manual drain the regulating range is 0.05-0.9 MPa (7-130 psi); maximum working pressure is 1.0 MPa (145 psi) and the medium is compressed air from -5 to 70 C (non-freezing).
The G series spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and offers PT, G (BSPP) or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um elements, and gauge options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for this exact code before you order.
Airtac GFR Filter Regulator GFR300C10MJNWK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C10MJNWK |
|---|---|
| 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.
Model Code: Airtac GFR Filter Regulator GFR300C10MJNWK
| 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.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
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) |
Where the Airtac GFR Filter Regulator GFR300C10MJNWK Is Used
Solenoid valve stacks on packaging machinery
Conditioned, regulated air to the valve island of a form-fill-seal machine: the 5 um element screens fine particulate before the valves and the regulator is set to the pressure the valve datasheet calls for at the manifold.
Bench-top pneumatic presses
Supplying a small pneumatic press or clamping fixture at a workbench: the operator dials in working pressure once and opens the manual drain at the end of a shift to clear the polycarbonate bowl.
Air preparation at CNC machine inlets
A drop off the shop air main feeding a machining center's pneumatic circuit, with filtration and regulation handled in one body ahead of the machine's own valves.
Is the Airtac GFR Filter Regulator GFR300C10MJNWK the Right Unit?
Step between sizes 200, 300, 400 and 600 to match the port and flow of your line; size 300 with its 3/8 in PT port suits medium-size drops feeding valves, cylinders or fixtures. Choose the 5 um element (W) when downstream equipment tolerates less particulate than the standard 40 um grade. The M drain means the bowl is bled by hand on a routine - if the installation is unmanned, compare the automatic (A) or differential-pressure versions. No gauge is fitted (N) and no mounting bracket (J); bracket and gauge variants are available in the family. PT is the standard thread, with G and NPT as catalogue options. Flow is published as curves, not a single rating, so send us your flow requirement and we will confirm sizing against the datasheet before you order.
Quick checklist
- ✓ Body size for your peak flow (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
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 GFR Filter Regulator GFR300C10MJNWK FAQ
AirTAC publishes G-series flow as performance curves rather than one rated number, so we do not quote a single figure. Send us your inlet pressure and required downstream flow and we will confirm the datasheet curve and the sizing for this exact code on request.
M is the manual drain, J omits the mounting bracket, N omits the gauge, W selects the 5 um filter element instead of the standard 40 um, and K fits a reverse (check) valve. The unit is size 300 with a 3/8 in PT port.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR300C10MJNWK
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.