Airtac GFR Filter Regulator GFR300C08AF1W
The AirTAC GFR Filter Regulator GFR300C08AF1W 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 GFR300C08AF1W
The AirTAC GFR series combines a water-and-particulate filter and a pressure regulator in one body, so a single 1/4in unit does both jobs in a compact footprint. This configuration is the 300 size with a 1/4in PT port, a 5 um filter element for finer cleanliness than the standard 40 um grade, an automatic drain that expels collected condensate without manual attention, and the embedded square gauge reading in MPa for quick set-and-check adjustment across the 0.15-0.9 MPa (20-130 psi) regulation range. Maximum inlet pressure is 1.0 MPa (145 psi), and the polycarbonate bowl suits ambient temperatures of -5 to 70 C.
This is a genuine AirTAC part. The G-series spans 200, 300, 400 and 600 sizes with 1/8in to 1in ports, a choice of 40 um or 5 um elements, differential-pressure, automatic or manual drains, PT, G or NPT threads, MPa, psi or bar gauge scales, and optional brackets. Flow is published as curves rather than a single rated figure, so ask us to confirm datasheet and sizing data for your application.
Airtac GFR Filter Regulator GFR300C08AF1W Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08AF1W |
|---|---|
| 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 GFR300C08AF1W
| 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 GFR300C08AF1W Is Used
Pneumatic clamping on CNC machining centres
Supplies clean, regulated 1/4in air to workpiece clamps. The 5 um element helps protect clamp seals, and the MPa gauge lets setters match the pressure called out on machining drawings.
Spray guns in a furniture finishing booth
A one-body filter regulator at each spray station keeps gun pressure steady while the 5 um grade and automatic drain support continuous booth operation without someone draining bowls by hand.
Pick-and-place heads on a packaging line
Filtering and regulating the supply to gripper and lift cylinders in a single 300-size body, with the embedded square gauge giving operators a fast visual check of the setpoint.
Is the Airtac GFR Filter Regulator GFR300C08AF1W the Right Unit?
Work through the 200/300/400/600 size steps and their matching ports (here 1/4in PT on the 300 body) to match the air your circuit consumes; larger sizes carry more flow. Choose the 5 um element, as this unit has, when valves, cylinders or instruments need finer protection than the standard 40 um grade. The automatic drain suits unattended duty; manual and differential-pressure drains are the series alternatives. Gauge scales come in MPa, psi or bar, and PT is the standard thread with G and NPT available as catalogue options. Flow is published as curves, not a single rating, so let us confirm sizing against your application 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 GFR300C08AF1W FAQ
AirTAC publishes filter-regulator performance as flow curves rather than a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the datasheet flow data and check that the 300 size with the 1/4in port is correctly sized on request.
The standard G-series element is 40 um; the W option filters to 5 um for finer protection of valves, cylinders and instruments. This unit carries the 5 um grade, while 40 um versions are available in the same 300 size and 1/4in port.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR300C08AF1W
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.