Airtac GFR Filter Regulator GFR300C08MF1W
The AirTAC GFR Filter Regulator GFR300C08MF1W 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 GFR300C08MF1W
The GFR300C08MF1W is an AirTAC G-series filter regulator: water and particle filtration and downstream pressure regulation combined in one body. This configuration is size 300 with a PT1/4 port (PT is the standard thread), a polycarbonate bowl with manual drain, the fine 5 um filter element (the W code), and an embedded square pressure gauge scaled in MPa. The regulating range with manual drain is 0.05-0.9 MPa (7-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C.
It is a genuine AirTAC part. The G series runs from size 200 to 600 with ports from 1/8 in to 1 in, and offers standard 40 um filtration, automatic or differential-pressure drains, a reverse (check) valve (K code), G (BSPP) and NPT thread options, a round external gauge, and bracketless J variants. Flow for the series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and check sizing for your line.
Airtac GFR Filter Regulator GFR300C08MF1W Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08MF1W |
|---|---|
| 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 GFR300C08MF1W
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| C0 | 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-C0 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR300C08MF1W Is Used
Spray-gun supply at a finishing booth
Conditioning the air at the wall drop that feeds spray guns, the 5 um element removes finer particles than the standard grade while the regulator sets gun pressure on the MPa square gauge and the bowl collects carried-over water.
Pneumatic clamping on a machining fixture
Mounted ahead of the clamp cylinders on a CNC fixture, it dries and cleans the shop air reaching the clamps and holds the regulated setting the fixture designer specified, read directly off the embedded MPa gauge.
Bottle-filling line actuator feed
At the point of use on a bottling conveyor, the fine 5 um element and drain bowl condition the air driving the filler heads and diverters, and the regulator keeps the operating pressure steady between containers.
Is the Airtac GFR Filter Regulator GFR300C08MF1W the Right Unit?
Size 300 with a PT1/4 port is the mid step of the G series: sizes 200, 300, 400 and 600 move up in port size from 1/8 in to 1 in, so step up or down a size if the flow your circuit needs sits outside the 300 curve - flow is published as curves, not one rated figure, so ask us to confirm sizing against your air consumption before ordering. Manual drain keeps the regulating range at 0.05-0.9 MPa (7-130 psi) and suits duties checked on a routine walk-round; automatic or differential-pressure drain versions give hands-off water removal with a 0.15-0.9 MPa (20-130 psi) range. The W code here orders the 5 um element instead of the standard 40 um, the embedded square gauge reads MPa, G (BSPP) and NPT threads are order options, and the bracket is included unless the J code removes it.
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 GFR300C08MF1W FAQ
We do not quote a single rated flow because AirTAC publishes G-series performance as curves, not a single figure. Ask us for the datasheet and we will confirm the curve and check the size 300 unit against your actual air consumption before you order.
The W code orders the 5 um element for finer particle removal, for example ahead of spray equipment, instruments or air bearings, while standard units carry the 40 um element for general plant air. Both are filter regulators with the same body, drain and gauge options - only the filtration grade differs, so choose by how clean the downstream air needs to be.
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Genuine AirTAC parts produced by AirTAC factory.
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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 GFR300C08MF1W
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.