Airtac GFR Filter Regulator GFR300C08AC1W
The AirTAC GFR Filter Regulator GFR300C08AC1W 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 GFR300C08AC1W
GFR300C08AC1W is an AirTAC G-series filter regulator: filtration and pressure regulation in a single body, with a drain bowl and no lubricator. This configuration is the 300 size with a 1/4 in PT port, a 5 um filter element, automatic drain and a round external pressure gauge scaled in MPa. It removes water and particulate from compressed air and holds downstream pressure anywhere in the 0.15-0.9 MPa (20-130 psi) adjustment range, with a maximum working pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing). The 300-size bowl is polycarbonate (PC).
This is a genuine AirTAC part. The GFR series is offered in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, a choice of 40 um standard or 5 um (W) elements, differential-pressure, automatic or manual drains, embedded square or external round gauges (MPa, psi or bar scales), a reverse/check valve option and G (BSPP) or NPT thread options. Flow is published as curves rather than a single rating, so ask us to confirm datasheet and sizing figures for your application on request.
Airtac GFR Filter Regulator GFR300C08AC1W Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08AC1W |
|---|---|
| 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 GFR300C08AC1W
| 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 GFR300C08AC1W Is Used
Solenoid valve islands on packaging machines
Feeds a clean, pressure-stabilised 1/4 in supply to directional valve stacks that drive sealing, filling and forming actuators, with the 5 um element protecting spool clearances from water and fine particulate.
Pneumatic clamping on CNC fixtures
Sits at the drop to a machining-centre clamping circuit, filtering the air to 5 um and holding the set clamping pressure steady while the round MPa gauge gives the operator a direct reading at the machine.
Laboratory automation air supply
Conditions the compressed air feeding lab pipetting and plate-handling actuators, where the 5 um grade and automatic drain keep moisture and debris out of sensitive motion stages without daily drain checks.
Is the Airtac GFR Filter Regulator GFR300C08AC1W the Right Unit?
Every real choice is readable in the code. Size 300 with a 1/4 in PT port is the mid-range step: drop to 200 for compact lines, or step up to 400/600 as pipe and flow demand grow. The A selects the automatic drain, so the bowl sheds condensate unattended; the manual drain code gives operator-controlled draining and widens the regulation range down to 0.05 MPa (7-130 psi). The W selects the 5 um element over the 40 um standard, and C1 orders a round external gauge on a MPa scale (psi and bar scales, or the embedded square gauge, are alternative codes). PT is the standard thread; G (BSPP) and NPT are catalogue options to order. Because flow is published as curves and not a single rating, ask us to confirm sizing against the datasheet before ordering.
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 GFR300C08AC1W FAQ
AirTAC publishes flow for the G series as curves rather than a single rated figure, so we do not quote a rated flow number. Tell us your line pressure and air demand and we will confirm the sizing against the datasheet on request.
The A in the code selects the automatic drain, which expels condensate from the bowl without operator attention. The catalogue also offers the default differential-pressure drain and a manual drain; the manual version widens the regulation range to 0.05-0.9 MPa (7-130 psi).
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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 GFR300C08AC1W
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.