Airtac GFR Filter Regulator GFR300C08AJF1WK
The AirTAC GFR Filter Regulator GFR300C08AJF1WK 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 GFR300C08AJF1WK
GFR300C08AJF1WK is an AirTAC GFR filter regulator: a 300-size unit that filters and regulates compressed air in a single body. This configuration combines the finer 5 um (W) filter element with a reverse (check) valve that helps hold downstream pressure when the supply is shut off. It carries a 1/4 in PT port, an automatic drain that ejects condensate without operator attention, and an embedded square gauge scaled in MPa. Maximum inlet pressure is 1.0 MPa (145 psi), the regulation range with automatic drain is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C. The bowl is polycarbonate at this size; code J means no mounting bracket is supplied.
This is a genuine AirTAC part. The GFR family is offered in 200, 300, 400 and 600 sizes with 1/8 in to 1 in ports, differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) elements, gauge and G/NPT thread options, and an optional bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm datasheet values for your application before ordering.
Airtac GFR Filter Regulator GFR300C08AJF1WK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08AJF1WK |
|---|---|
| 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 GFR300C08AJF1WK
| 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 GFR300C08AJF1WK Is Used
Laboratory analyzer air feed
Supplies filtered, regulated air to bench-top analyzers and sample-handling actuators, where the 5 um element protects sensitive pneumatics and the check valve bridges compressor stop-start events.
Palletizer clamp circuit
Regulates air to the gripper and clamp cylinders of a palletizing cell, with the reverse valve helping the clamps maintain grip pressure if the main supply drops.
Fixture and jig actuation
Feeds swing clamps and positioning cylinders on welding or machining fixtures, where clean 5 um air and held downstream pressure keep the fixture sequence repeatable.
Is the Airtac GFR Filter Regulator GFR300C08AJF1WK the Right Unit?
This is the 300-size, 1/4 in PT configuration with the 5 um W element, automatic drain, square MPa gauge and check valve, and no bracket. Pick 5 um where downstream valves or processes are sensitive, and K where you want downstream pressure held through supply interruptions. If you do not need either, the plain AJF1 version with a 40 um element is the same body without them. G (BSPP) and NPT threads are catalogue alternatives to PT, and a bracket can be specified where fixing is required.
AirTAC states flow only as curves, not as one rated number, so send us your flow and pressure requirements and we will confirm sizing from the datasheet 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 GFR300C08AJF1WK FAQ
There is no single rated flow figure to quote: AirTAC publishes this series' flow as characteristic curves. Give us your flow and working pressure and we will confirm the matching datasheet values on request before you order.
This unit decodes as 1/4 in PT port, automatic drain, no bracket (J), 5 um filter (W), square MPa gauge (F1) and reverse valve (K). You can order the same body with a 40 um element, a manual or differential-pressure drain, a different gauge scale, G or NPT threads, or a bracket.
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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 GFR300C08AJF1WK
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.