Airtac GFR Filter Regulator GFR300C08F1W
The AirTAC GFR Filter Regulator GFR300C08F1W 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 GFR300C08F1W
The AirTAC GFR300C08F1W is a filter regulator: it strips water and particulate from compressed air and holds downstream pressure steady in a single body. This 300-size unit is tapped PT 1/4 in and the W suffix fits the finer 5 um element, a better match for sensitive pilot valves and instruments than the 40 um standard grade. Condensate is removed by a differential-pressure drain, the embedded square gauge is scaled in MPa, and the regulation range with this drain is 0.15-0.9 MPa (20-130 psi).
This is a genuine AirTAC part with a maximum working pressure of 1.0 MPa (145 psi) and an operating range of -5 to 70 C, non-freezing. The GFR family is available in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, G (BSPP) and NPT threads, automatic or manual drains, an optional check valve, and gauge choices. Flow is published as curves rather than one rated number, so we confirm the datasheet figures for your application on request.
Airtac GFR Filter Regulator GFR300C08F1W Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08F1W |
|---|---|
| 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 GFR300C08F1W
| 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 GFR300C08F1W Is Used
Lab instrument air supply
Point-of-use conditioning for analyser cabinets and lab actuators, where the 5 um element keeps fine debris out of precision valves.
Robotic gripper line
Air preparation for pick-and-place gripper manifolds in a robotics cell, protecting small pilot valves from water and particles.
Paint line atomising air
Conditions atomising and conveying air at a coating line, where clean air and steady regulated pressure support finish consistency.
Is the Airtac GFR Filter Regulator GFR300C08F1W the Right Unit?
Choose 5 um (this W version) when the downstream valves, grippers or instruments are sensitive to fine debris, and 40 um for general plant air. Sizes run 200/300/400/600 with ports from 1/8 to 1 in, so move up a size if your demand sits above what a 1/4 in drop carries. The differential-pressure drain is standard; automatic or manual drains are catalogue options, as are a round external gauge, psi or bar scales, G (BSPP) or NPT threads, and a check valve (K). Flow is published as curves, not a single rating, so ask us to confirm sizing against your application 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 GFR300C08F1W FAQ
We do not quote a single rated flow because AirTAC publishes GFR300 performance as curves across pressure, not as one number. Send us your inlet pressure and consumption and we will confirm the sizing from the datasheet on request.
Pick 5 um when the unit feeds fine pilot valves, instruments or coating equipment that suffers from small particles; pick 40 um for general cylinders and plant air. Both grades fit the same GFR300 body at 1/4 in PT with the same MPa gauge and differential-pressure drain.
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 GFR300C08F1W
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.