Airtac GFR Filter Regulator GFR300C08ANW
The AirTAC GFR Filter Regulator GFR300C08ANW 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 GFR300C08ANW
The AirTAC GFR300C08ANW is a filter regulator: filtration and pressure regulation combined in one body, with a drain bowl but no lubricator. This code decodes to a size-300 unit with a 1/4 inch PT port, the finer 5 um (W) filter element, an automatic drain that vents condensate on its own, and no pressure gauge fitted. Maximum working pressure is 1.0 MPa (145 psi), the regulation range with this drain type is 0.15-0.9 MPa (20-130 psi), and the size-300 bowl is polycarbonate.
It is a genuine AirTAC part. The GFR family runs from size 200 to 600 with ports from 1/8 to 1 inch, PT as the standard thread and G (BSPP) or NPT as orderable options; element grade, drain type, gauge and check-valve choices vary by code. Operating temperature is -5 to 70 C, non-freezing. AirTAC publishes flow as curves rather than a single rating, so we confirm datasheet figures on request.
Airtac GFR Filter Regulator GFR300C08ANW Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08ANW |
|---|---|
| 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 GFR300C08ANW
| 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 GFR300C08ANW Is Used
Pneumatic actuation on analytical instrument skids
Conditioning plant air that feeds pneumatically operated valves and purge circuits on analytical instrumentation skids, where the 5 um element removes finer particulate ahead of sensitive pilot components.
Automatic spray guns on a wood-finishing line
Filtered, regulated supply to automatic spray guns on a finishing line; the 5 um element reduces carryover of fine particles that can mar a wet film, and the automatic drain handles condensate between shifts.
Clamping pneumatics on a CNC machining centre
Regulated air to tool-clamp and part-clamp circuits on a CNC machine, where steady set-point pressure and finer filtration help protect the pilot valves that control each clamp sequence.
Is the Airtac GFR Filter Regulator GFR300C08ANW the Right Unit?
Size 300 with the 1/4 inch PT port is the working choice for medium-duty branch lines; move to 400 or 600 for larger ports, or 200 for compact circuits. This code's key choice is the W element: 5 um instead of the standard 40 um, for air feeding finer or more particle-sensitive pneumatics. The A drain vents the bowl automatically, which suits unattended drops. There is no gauge on this code - gauge and scale options exist on other GFR300 codes - and no check valve. Before ordering, ask us to confirm sizing: AirTAC publishes flow as curves, not a single rating, so we check the curve against your demand.
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 GFR300C08ANW FAQ
AirTAC publishes G-series capacity as flow curves rather than one rated number, so we do not state a figure here. Tell us your required flow and working pressure and we will confirm the datasheet curve for this 1/4 inch PT, 5 um, auto-drain configuration before you order.
The standard 40 um element suits general plant air for cylinders and valves. Choose the W (5 um) grade when the downstream equipment is more particle-sensitive - pilot valves, spray equipment or instrument air - or where a finer pre-filter stage is wanted. The trade-off to check is pressure drop across the element, which we can confirm from the datasheet on request.
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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 GFR300C08ANW
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.