Airtac GFR Filter Regulator GFR300C08JF1K
The AirTAC GFR Filter Regulator GFR300C08JF1K 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 GFR300C08JF1K
The AirTAC GFR300C08JF1K is a combined filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in one body. This unit is a size 300 body with a 1/4 in PT port, a standard 40 um filter element, a differential-pressure drain and a built-in square pressure gauge scaled in MPa. A reverse (check) valve is fitted, and the J suffix means it ships without a mounting bracket. Maximum working pressure is 1.0 MPa (145 psi) and the regulator adjustment range with differential-pressure drain is 0.15-0.9 MPa (20-130 psi). The polycarbonate bowl suits -5 to 70 C (non-freezing) service.
This is a genuine AirTAC part, distributed for the US market. The G series spans sizes 200, 300, 400 and 600, with port options, 40 um or 5 um elements, automatic, manual or differential-pressure drains, gauge choices and G (BSPP) or NPT threads available in the catalogue. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing figures on request.
Airtac GFR Filter Regulator GFR300C08JF1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08JF1K |
|---|---|
| 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 GFR300C08JF1K
| 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 GFR300C08JF1K Is Used
Pneumatic press supply line
Filtering and regulating the 1/4 in air feed to a bench pneumatic press, keeping chips and condensed water out of the valve stack while holding a stable working pressure.
CNC machine air preparation
Mounted ahead of a CNC machining centre's solenoid valves, cleaning plant air and setting a fixed pressure for clamping and tool-change cylinders.
Packaging conveyor air cylinders
Conditioning the air that drives stopper and pusher cylinders on a packaging conveyor, with the check valve holding downstream pressure during supply dips.
Is the Airtac GFR Filter Regulator GFR300C08JF1K the Right Unit?
Choose the 300 body with a 1/4 in PT port when your line plumbing is 1/4 in and your air demand sits mid-range; step up to size 400 or 600 for higher flow. The standard 40 um element suits general plant air; specify the W version for 5 um filtration. This configuration has a differential-pressure drain (drains as pressure drop builds), a square MPa gauge and a fitted check valve; automatic or manual drains, external round gauges in psi or bar scale, G or NPT threads and a bracket are catalogue options.
Flow is published as curves, not one rated number, 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 GFR300C08JF1K FAQ
AirTAC publishes flow for the GFR300 as curves, not a single rated figure, so we do not quote one number. Tell us your line pressure and air demand and we will confirm the datasheet curve and correct sizing on request before you order.
The K means a reverse (check) valve is fitted, so air cannot flow back through the unit when upstream pressure falls. If you do not need that, the same unit without the K is available, as are automatic or manual drains and a 5 um element.
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 GFR300C08JF1K
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.