Airtac GFR Filter Regulator GFR300C08JF1W
The AirTAC GFR Filter Regulator GFR300C08JF1W 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 GFR300C08JF1W
The AirTAC GFR300C08JF1W is a combined filter regulator that cleans compressed air and regulates downstream pressure in one body. It is a size 300 unit with a 1/4 in PT port, and the W suffix specifies the fine 5 um filter element instead of the standard 40 um. Drainage is differential-pressure, the built-in square gauge is scaled in MPa, the regulator type is standard, and the J suffix means no mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi); the adjustment range with differential-pressure drain is 0.15-0.9 MPa (20-130 psi), and the polycarbonate bowl is rated -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The G series runs from size 200 to 600, with alternative ports, manual or automatic drains, external round gauges in psi or bar scale, G (BSPP) or NPT threads and bracket options in the catalogue. Flow is published only as curves, so we confirm datasheet and sizing figures on request.
Airtac GFR Filter Regulator GFR300C08JF1W Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08JF1W |
|---|---|
| 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 GFR300C08JF1W
| 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 GFR300C08JF1W Is Used
Laboratory pneumatic fixtures
Supplying fine-filtered, pressure-regulated air to test fixtures and pneumatic clamps in a lab or QA cell, where a 5 um element protects sensitive instruments.
Precision pneumatic tooling
Feeding air cylinders and low-flow pilot valves on precision assembly tooling, with the 5 um element reducing particulate that can seat-valve sticking.
Control panel actuation
Conditioning the 1/4 in supply to pneumatic control panels and positioner circuits, combining cleaning and pressure setting in a single body.
Is the Airtac GFR Filter Regulator GFR300C08JF1W the Right Unit?
Pick this unit when a 1/4 in PT connection and the 300 body match your plumbing and demand, and your downstream equipment needs the finer 5 um filtration, for example precision valves or air bearings. If your air is general-purpose, the standard 40 um element is the lower-restriction choice. This version has a differential-pressure drain and square MPa gauge; manual or automatic drains, round gauges in psi or bar, G or NPT threads and a bracket are orderable options.
Because flow is published as curves rather than one rating, 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 GFR300C08JF1W FAQ
AirTAC publishes the GFR300 flow data as curves, not as a single rated number, so we cannot quote one figure. Send us your pressure and demand and we will confirm the datasheet curve and check the sizing on request.
The W suffix in this model means a 5 um element, which catches finer particles than the 40 um standard element, at the cost of a higher pressure drop. Choose 5 um for sensitive valves and instruments, and 40 um for general plant air.
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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 GFR300C08JF1W
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.