Airtac GFR Filter Regulator GFR300C08AN
The AirTAC GFR Filter Regulator GFR300C08AN 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 GFR300C08AN
GFR300C08AN is an AirTAC G-series filter regulator: filtration and pressure regulation in one 300-size body for compressed air. This configuration has PT (1/4 in) ports, an automatic drain that expels condensate from the PC bowl without manual attention, and the standard 40 um element. A mounting bracket is included for fixing to a panel or frame. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the operating range is -5 to 70 C. No pressure gauge or check valve is fitted.
It is a genuine AirTAC part. The GFR range spans 200 to 600 size with G(BSPP) and NPT thread options, 5 um (W) elements, manual and differential-pressure drain variants, and gauge choices. Flow is published as curves rather than a single rated figure, so we confirm the flow and datasheet details for your application on request.
Airtac GFR Filter Regulator GFR300C08AN Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08AN |
|---|---|
| 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 GFR300C08AN
| 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 GFR300C08AN Is Used
Injection molding cell air prep
Bracket-mounted inside the machine cabinet, the unit conditions the air feeding core-pull and ejector cylinders on an injection molding press.
Baghouse pulse valve supply
Filtered, regulated air drives the solenoid pulse valves that clean the filter bags of a dust collector, with the automatic drain handling condensate.
Test bench actuation
On an engineering test rig, the unit gives technicians a fixed, filtered air supply for cycling actuators and fixtures under evaluation.
Is the Airtac GFR Filter Regulator GFR300C08AN the Right Unit?
Pick this code for a 300-size, 1/4 in PT filter regulator that mounts on a bracket rather than hanging on the line - useful inside control cabinets and on machine frames. Drain type is automatic here; manual and differential-pressure variants exist if you prefer scheduled or load-dependent draining. Filtration is the standard 40 um grade, with 5 um available on W codes. Thread is PT as standard, with G(BSPP) and NPT available as catalogue options. Because flow is published as curves, not a single rating, ask us to confirm sizing against your demand before ordering; this build has no gauge, so use a separate gauge code or your own panel gauge where a reading is needed.
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 GFR300C08AN FAQ
Flow for the G-series is published as curves, not as a single rated figure, so we do not state a number here. Give us your working pressure and air consumption and we will confirm sizing from the curves and provide the datasheet on request.
No - the N in the code means no gauge is fitted. Gauge-equipped variants in the same GFR300 range use an embedded square gauge, with an optional external round gauge in MPa, psi or bar scales, if you want a pressure reading at the unit.
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 GFR300C08AN
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.