Airtac GFR Filter Regulator GFR300C08F1WK
The AirTAC GFR Filter Regulator GFR300C08F1WK 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 GFR300C08F1WK
The AirTAC GFR300C08F1WK combines fine filtration, pressure regulation and backflow protection in one body. This 300-size unit is tapped PT 1/4 in, the W suffix fits the 5 um element for cleaner air than the 40 um standard grade, and the K suffix adds a built-in check valve that holds downstream pressure if the upstream supply drops. Condensate is removed by a differential-pressure drain, the embedded square gauge reads in MPa, and the regulation range with this drain is 0.15-0.9 MPa (20-130 psi).
This is a genuine AirTAC part rated to a maximum working pressure of 1.0 MPa (145 psi) and an operating range of -5 to 70 C, non-freezing. The GFR family spans 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, G (BSPP) and NPT threads, automatic or manual drain options and alternative gauges. Flow is published as curves rather than a single rated figure, so we confirm datasheet numbers for your application on request.
Airtac GFR Filter Regulator GFR300C08F1WK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08F1WK |
|---|---|
| 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 GFR300C08F1WK
| 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 GFR300C08F1WK Is Used
Label applicator heads
Air for label applicator cylinders on a bottling line: the 5 um element protects fine pilot valves while the check valve holds position during supply dips.
Air knife trimming station
Filtered, regulated blow-off air on a trimming station, with backflow protection for downstream circuits when the machine is isolated.
High-cycle clamping fixture
Regulated air for rapid-cycle clamps on a machining fixture, with downstream pressure retained between cycles if the supply fluctuates.
Is the Airtac GFR Filter Regulator GFR300C08F1WK the Right Unit?
This version suits points where both clean air and pressure retention matter: the 5 um element for sensitive valves, the K check valve for circuits that must not dump on a supply dip. Sizes run 200/300/400/600 with ports from 1/8 to 1 in; keep the 40 um grade instead if the load is general cylinders. The differential-pressure drain is standard, with automatic or manual drains, a round external gauge, psi or bar scales and G (BSPP) or NPT threads all available as catalogue options. 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 GFR300C08F1WK FAQ
There is no single rated flow to quote: AirTAC publishes GFR300 performance as curves across inlet pressure. Share your operating pressure and air demand and we will confirm the appropriate sizing from the datasheet on request.
It vents collected condensate automatically when the pressure drop across the 5 um element shows the bowl needs draining, with no operator input. If your application needs a different behaviour, automatic or manual drain versions of the same 1/4 in GFR300 are available to order.
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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 GFR300C08F1WK
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.